* [BUG] on mount with reiser4-for-4.8
@ 2016-12-17 21:08 Dušan Čolić
2016-12-17 21:45 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2016-12-17 21:08 UTC (permalink / raw)
To: reiserfs-devel
When mounting reiser4 partitions I get the following bug, but the
system keeps working, even as reiser4 remounted partition as read
only.
All R4 partitions are ccreg40.
Thanks
Dushan
cat /etc/fstab | grep -v "#"
/dev/sda1 /boot ext2 noauto,noatime 1 2
/dev/md123 none swap sw 0 0
/dev/sda2 / reiser4 noatime,onerror=remount-ro 0 0
/dev/md125 /mnt/backup reiser4
noatime,noauto,onerror=remount-ro 0 0
/dev/md126 /mnt/media reiser4
noatime,users,onerror=remount-ro 0 0
/dev/md127 /usr/portage reiser4
noatime,onerror=remount-ro 0 0
/dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
cat /proc/mdstat
Personalities : [raid1]
md122 : active raid1 sdc1[1] sdb1[0]
104320 blocks [2/2] [UU]
md123 : active raid1 sdc2[1] sdb2[0]
594304 blocks [2/2] [UU]
md124 : active raid1 sdc5[1] sdb5[0]
9775424 blocks [2/2] [UU]
md125 : active raid1 sdc6[1] sdb6[0]
68364480 blocks [2/2] [UU]
md126 : active raid1 sdc7[1] sdb7[0]
403110912 blocks [2/2] [UU]
md127 : active raid1 sdc8[1] sdb8[0]
6433920 blocks [2/2] [UU]
df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 37017728 30413152 6604576 83% /
tmpfs 680644 1012 679632 1% /run
dev 10240 0 10240 0% /dev
shm 3403212 1284 3401928 1% /dev/shm
cgroup_root 10240 0 10240 0% /sys/fs/cgroup
/dev/md126 383034100 350741596 32292504 92% /mnt/media
/dev/md127 6113484 5605344 508140 92% /usr/portage
none 3403212 12 3403200 1% /run/user/1001
none 3403212 0 3403212 0% /run/user/1000
/dev/md125 64959612 52568760 12390852 81% /mnt/backup
dmesg
[ 2.057469] reiser4[swapper/0(1)]: try_init_format40
(fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
NOTICE: Warning: mounting sda2 with fatal errors,
forcing read-only mount.
[ 2.060544] reiser4: sda2: found disk format 4.0.1.
[ 2.062410] ==================================================================
[ 2.063993] BUG: KASAN: use-after-free in
init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
[ 2.065616] Read of size 4 by task swapper/0/1
[ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo #3
[ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
[ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
ffff8801d6000600
[ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
ffff8801d6327ad8
[ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
ffffffff811ffb79
[ 2.075861] Call Trace:
[ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
[ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
[ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
[ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
[ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
[ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
[ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
[ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
[ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
[ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
[ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
[ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
[ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
[ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
[ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
[ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
[ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
[ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
[ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size: 512
[ 2.126453] Allocated:
[ 2.128364] PID = 1
[ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
[ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
[ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
[ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
[ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
[ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
[ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
[ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
[ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
[ 2.163918] Freed:
[ 2.165760] PID = 1
[ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
[ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
[ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
[ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
[ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
[ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
[ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
[ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
[ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
[ 2.195902] Memory state around the buggy address:
[ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
fc fc fc fc
[ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
fc fc fc fc
[ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 2.202460] ^
[ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 2.207471] ==================================================================
[ 2.209162] Disabling lock debugging due to kernel taint
[ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
disk format upgrade.
[ 2.212696] usb 1-1.4: new high-speed USB device number 3 using ehci-pci
[ 2.214507] usb 2-1.5: new full-speed USB device number 3 using ehci-pci
[ 2.234910] hid-generic 0003:051D:0002.0002: device has no
listeners, quitting
[ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
[ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device 8:2.
[ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
ffffffff82178000)
[ 2.317823] Write protecting the kernel read-only data: 16384k
[ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
ffff880001c00000)
[ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
ffff880002000000)
[ 2.334644] hub 1-1.4:1.0: USB hub found
[ 2.336766] hub 1-1.4:1.0: 2 ports detected
[ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using ehci-pci
[ 5.221431] random: crng init done
[ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
extents:1 across:594300k
[ 7.661464] reiser4: md126: found disk format 4.0.1.
[ 7.661541] ==================================================================
[ 7.661546] BUG: KASAN: use-after-free in
init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
[ 7.661548] Read of size 4 by task mount/1662
[ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
4.8.11-gentoo #3
[ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
[ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
ffff8801d6000600
[ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
ffff8801cf087be0
[ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
ffffffff811ffb79
[ 7.661561] Call Trace:
[ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
[ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
[ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
[ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
[ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
[ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
[ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
[ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
[ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
[ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
[ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
[ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size: 512
[ 7.661615] Allocated:
[ 7.661615] PID = 1662
[ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
[ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
[ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
[ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[ 7.661646] Freed:
[ 7.661646] PID = 1662
[ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
[ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
[ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
[ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[ 7.661675] Memory state around the buggy address:
[ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
fc fc fc fc
[ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 7.661681] ^
[ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 7.661685] ==================================================================
[ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
[ 11.016722] rcu-perf:Test complete
[ 26.835385] reiser4: md126: using Hybrid Transaction Model.
[ 26.857910] reiser4: md127: found disk format 4.0.1.
[ 26.857995] ==================================================================
[ 26.858002] BUG: KASAN: use-after-free in
init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
[ 26.858003] Read of size 4 by task mount/1662
[ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
4.8.11-gentoo #3
[ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
[ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
ffff8801d6000600
[ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
ffff8801cf087be0
[ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
ffffffff811ffb79
[ 26.858017] Call Trace:
[ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
[ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
[ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
[ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
[ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
[ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
[ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
[ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
[ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
[ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
[ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size: 512
[ 26.858067] Allocated:
[ 26.858068] PID = 1662
[ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
[ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
[ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
[ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[ 26.858098] Freed:
[ 26.858099] PID = 1662
[ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
[ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
[ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
[ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[ 26.858128] Memory state around the buggy address:
[ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
fc fc fc fc
[ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
fc fc fc fc
[ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 26.858134] ^
[ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[ 26.858137] ==================================================================
[ 27.199941] reiser4: md127: using Hybrid Transaction Model.
[33530.203469] reiser4[mount(11677)]: try_init_format40
(fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
NOTICE: Warning: mounting md125 with fatal errors,
forcing read-only mount.
[33530.203480] reiser4: md125: found disk format 4.0.1.
[33530.203564] ==================================================================
[33530.203570] BUG: KASAN: use-after-free in
init_format_format40+0x401/0x750 at addr ffff88013164d810
[33530.203571] Read of size 4 by task mount/11677
[33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
4.8.11-gentoo #3
[33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
[33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
ffff8801d6000600
[33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
ffff88000da87be0
[33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
ffffffff811ffb79
[33530.203585] Call Trace:
[33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
[33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
[33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
[33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
[33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
[33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
[33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
[33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
[33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
[33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
[33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
[33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size: 512
[33530.203637] Allocated:
[33530.203638] PID = 11677
[33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
[33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
[33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
[33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[33530.203668] Freed:
[33530.203669] PID = 11677
[33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
[33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
[33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
[33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
[33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
[33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
[33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
[33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
[33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
[33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
[33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
[33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[33530.203697] Memory state around the buggy address:
[33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
fc fc fc fc
[33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
fb fb fb fb
[33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[33530.203703] ^
[33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
fb fb fb fb
[33530.203707] ==================================================================
[33533.485380] reiser4: md125: using Hybrid Transaction Model.
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2016-12-17 21:08 [BUG] on mount with reiser4-for-4.8 Dušan Čolić
@ 2016-12-17 21:45 ` Edward Shishkin
2016-12-18 12:17 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2016-12-17 21:45 UTC (permalink / raw)
To: Dušan Čolić, reiserfs-devel
[-- Attachment #1: Type: text/plain, Size: 22779 bytes --]
Please, check if this help.
Apply from reiser4 directory.
Thanks,
Edward.
On 12/17/2016 10:08 PM, Dušan Čolić wrote:
> When mounting reiser4 partitions I get the following bug, but the
> system keeps working, even as reiser4 remounted partition as read
> only.
>
> All R4 partitions are ccreg40.
>
> Thanks
>
> Dushan
>
> cat /etc/fstab | grep -v "#"
>
>
> /dev/sda1 /boot ext2 noauto,noatime 1 2
> /dev/md123 none swap sw 0 0
> /dev/sda2 / reiser4 noatime,onerror=remount-ro 0 0
> /dev/md125 /mnt/backup reiser4
> noatime,noauto,onerror=remount-ro 0 0
> /dev/md126 /mnt/media reiser4
> noatime,users,onerror=remount-ro 0 0
> /dev/md127 /usr/portage reiser4
> noatime,onerror=remount-ro 0 0
> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>
>
> cat /proc/mdstat
> Personalities : [raid1]
> md122 : active raid1 sdc1[1] sdb1[0]
> 104320 blocks [2/2] [UU]
>
> md123 : active raid1 sdc2[1] sdb2[0]
> 594304 blocks [2/2] [UU]
>
> md124 : active raid1 sdc5[1] sdb5[0]
> 9775424 blocks [2/2] [UU]
>
> md125 : active raid1 sdc6[1] sdb6[0]
> 68364480 blocks [2/2] [UU]
>
> md126 : active raid1 sdc7[1] sdb7[0]
> 403110912 blocks [2/2] [UU]
>
> md127 : active raid1 sdc8[1] sdb8[0]
> 6433920 blocks [2/2] [UU]
>
> df
>
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/sda2 37017728 30413152 6604576 83% /
> tmpfs 680644 1012 679632 1% /run
> dev 10240 0 10240 0% /dev
> shm 3403212 1284 3401928 1% /dev/shm
> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
> /dev/md126 383034100 350741596 32292504 92% /mnt/media
> /dev/md127 6113484 5605344 508140 92% /usr/portage
> none 3403212 12 3403200 1% /run/user/1001
> none 3403212 0 3403212 0% /run/user/1000
> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>
>
> dmesg
>
> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
> NOTICE: Warning: mounting sda2 with fatal errors,
> forcing read-only mount.
> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
> [ 2.062410] ==================================================================
> [ 2.063993] BUG: KASAN: use-after-free in
> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
> [ 2.065616] Read of size 4 by task swapper/0/1
> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo #3
> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
> ffff8801d6000600
> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
> ffff8801d6327ad8
> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
> ffffffff811ffb79
> [ 2.075861] Call Trace:
> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size: 512
> [ 2.126453] Allocated:
> [ 2.128364] PID = 1
> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
> [ 2.163918] Freed:
> [ 2.165760] PID = 1
> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
> [ 2.195902] Memory state around the buggy address:
> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc fc
> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc fc
> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 2.202460] ^
> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 2.207471] ==================================================================
> [ 2.209162] Disabling lock debugging due to kernel taint
> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
> disk format upgrade.
> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using ehci-pci
> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using ehci-pci
> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
> listeners, quitting
> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device 8:2.
> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
> ffffffff82178000)
> [ 2.317823] Write protecting the kernel read-only data: 16384k
> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
> ffff880001c00000)
> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
> ffff880002000000)
> [ 2.334644] hub 1-1.4:1.0: USB hub found
> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using ehci-pci
> [ 5.221431] random: crng init done
> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
> extents:1 across:594300k
> [ 7.661464] reiser4: md126: found disk format 4.0.1.
> [ 7.661541] ==================================================================
> [ 7.661546] BUG: KASAN: use-after-free in
> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
> [ 7.661548] Read of size 4 by task mount/1662
> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
> 4.8.11-gentoo #3
> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
> ffff8801d6000600
> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
> ffff8801cf087be0
> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
> ffffffff811ffb79
> [ 7.661561] Call Trace:
> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size: 512
> [ 7.661615] Allocated:
> [ 7.661615] PID = 1662
> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [ 7.661646] Freed:
> [ 7.661646] PID = 1662
> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [ 7.661675] Memory state around the buggy address:
> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc fc
> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 7.661681] ^
> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 7.661685] ==================================================================
> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
> [ 11.016722] rcu-perf:Test complete
> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
> [ 26.857910] reiser4: md127: found disk format 4.0.1.
> [ 26.857995] ==================================================================
> [ 26.858002] BUG: KASAN: use-after-free in
> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
> [ 26.858003] Read of size 4 by task mount/1662
> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
> 4.8.11-gentoo #3
> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
> ffff8801d6000600
> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
> ffff8801cf087be0
> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
> ffffffff811ffb79
> [ 26.858017] Call Trace:
> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size: 512
> [ 26.858067] Allocated:
> [ 26.858068] PID = 1662
> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [ 26.858098] Freed:
> [ 26.858099] PID = 1662
> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [ 26.858128] Memory state around the buggy address:
> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc fc
> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc fc
> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 26.858134] ^
> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [ 26.858137] ==================================================================
> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>
>
> [33530.203469] reiser4[mount(11677)]: try_init_format40
> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
> NOTICE: Warning: mounting md125 with fatal errors,
> forcing read-only mount.
> [33530.203480] reiser4: md125: found disk format 4.0.1.
> [33530.203564] ==================================================================
> [33530.203570] BUG: KASAN: use-after-free in
> init_format_format40+0x401/0x750 at addr ffff88013164d810
> [33530.203571] Read of size 4 by task mount/11677
> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
> 4.8.11-gentoo #3
> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
> ffff8801d6000600
> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
> ffff88000da87be0
> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
> ffffffff811ffb79
> [33530.203585] Call Trace:
> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size: 512
> [33530.203637] Allocated:
> [33530.203638] PID = 11677
> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [33530.203668] Freed:
> [33530.203669] PID = 11677
> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
> [33530.203697] Memory state around the buggy address:
> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc fc
> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
> fb fb fb fb
> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [33530.203703] ^
> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
> fb fb fb fb
> [33530.203707] ==================================================================
> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
> --
> To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
[-- Attachment #2: reiser4-fix-missed-readonly-flag.patch --]
[-- Type: text/x-patch, Size: 711 bytes --]
diff --git a/plugin/disk_format/disk_format40.c b/plugin/disk_format/disk_format40.c
index 41d7bbc..d9a0d49 100644
--- a/plugin/disk_format/disk_format40.c
+++ b/plugin/disk_format/disk_format40.c
@@ -298,9 +298,11 @@ static int try_init_format40(struct super_block *super,
if (result == REISER4_STATUS_MOUNT_WARN)
notice("vpf-1363", "Warning: mounting %s with errors.",
super->s_id);
- if (result == REISER4_STATUS_MOUNT_RO)
+ if (result == REISER4_STATUS_MOUNT_RO) {
notice("vpf-1364", "Warning: mounting %s with fatal errors,"
" forcing read-only mount.", super->s_id);
+ super->s_flags |= MS_RDONLY;
+ }
result = reiser4_journal_replay(super);
if (result)
return result;
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2016-12-17 21:45 ` Edward Shishkin
@ 2016-12-18 12:17 ` Dušan Čolić
2016-12-18 12:44 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2016-12-18 12:17 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
It's OK now, mounts read-only on error.
What about that BUG on mount?
On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> Please, check if this help.
> Apply from reiser4 directory.
>
> Thanks,
> Edward.
>
>
> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>
>> When mounting reiser4 partitions I get the following bug, but the
>> system keeps working, even as reiser4 remounted partition as read
>> only.
>>
>> All R4 partitions are ccreg40.
>>
>> Thanks
>>
>> Dushan
>>
>> cat /etc/fstab | grep -v "#"
>>
>>
>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>> /dev/md123 none swap sw 0
>> 0
>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>> 0 0
>> /dev/md125 /mnt/backup reiser4
>> noatime,noauto,onerror=remount-ro 0 0
>> /dev/md126 /mnt/media reiser4
>> noatime,users,onerror=remount-ro 0 0
>> /dev/md127 /usr/portage reiser4
>> noatime,onerror=remount-ro 0 0
>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>
>>
>> cat /proc/mdstat
>> Personalities : [raid1]
>> md122 : active raid1 sdc1[1] sdb1[0]
>> 104320 blocks [2/2] [UU]
>>
>> md123 : active raid1 sdc2[1] sdb2[0]
>> 594304 blocks [2/2] [UU]
>>
>> md124 : active raid1 sdc5[1] sdb5[0]
>> 9775424 blocks [2/2] [UU]
>>
>> md125 : active raid1 sdc6[1] sdb6[0]
>> 68364480 blocks [2/2] [UU]
>>
>> md126 : active raid1 sdc7[1] sdb7[0]
>> 403110912 blocks [2/2] [UU]
>>
>> md127 : active raid1 sdc8[1] sdb8[0]
>> 6433920 blocks [2/2] [UU]
>>
>> df
>>
>> Filesystem 1K-blocks Used Available Use% Mounted on
>> /dev/sda2 37017728 30413152 6604576 83% /
>> tmpfs 680644 1012 679632 1% /run
>> dev 10240 0 10240 0% /dev
>> shm 3403212 1284 3401928 1% /dev/shm
>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>> none 3403212 12 3403200 1% /run/user/1001
>> none 3403212 0 3403212 0% /run/user/1000
>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>
>>
>> dmesg
>>
>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>> NOTICE: Warning: mounting sda2 with fatal errors,
>> forcing read-only mount.
>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>> [ 2.062410]
>> ==================================================================
>> [ 2.063993] BUG: KASAN: use-after-free in
>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>> [ 2.065616] Read of size 4 by task swapper/0/1
>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo #3
>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>> ffff8801d6000600
>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>> ffff8801d6327ad8
>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>> ffffffff811ffb79
>> [ 2.075861] Call Trace:
>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size: 512
>> [ 2.126453] Allocated:
>> [ 2.128364] PID = 1
>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>> [ 2.163918] Freed:
>> [ 2.165760] PID = 1
>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>> [ 2.195902] Memory state around the buggy address:
>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
>> fc fc fc fc
>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
>> fc fc fc fc
>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 2.202460] ^
>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 2.207471]
>> ==================================================================
>> [ 2.209162] Disabling lock debugging due to kernel taint
>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>> disk format upgrade.
>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>> ehci-pci
>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>> ehci-pci
>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>> listeners, quitting
>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device
>> 8:2.
>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
>> ffffffff82178000)
>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
>> ffff880001c00000)
>> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
>> ffff880002000000)
>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using
>> ehci-pci
>> [ 5.221431] random: crng init done
>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>> extents:1 across:594300k
>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>> [ 7.661541]
>> ==================================================================
>> [ 7.661546] BUG: KASAN: use-after-free in
>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>> [ 7.661548] Read of size 4 by task mount/1662
>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>> 4.8.11-gentoo #3
>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>> ffff8801d6000600
>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>> ffff8801cf087be0
>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>> ffffffff811ffb79
>> [ 7.661561] Call Trace:
>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size: 512
>> [ 7.661615] Allocated:
>> [ 7.661615] PID = 1662
>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [ 7.661646] Freed:
>> [ 7.661646] PID = 1662
>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [ 7.661675] Memory state around the buggy address:
>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
>> fc fc fc fc
>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 7.661681] ^
>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 7.661685]
>> ==================================================================
>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>> [ 11.016722] rcu-perf:Test complete
>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>> [ 26.857995]
>> ==================================================================
>> [ 26.858002] BUG: KASAN: use-after-free in
>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>> [ 26.858003] Read of size 4 by task mount/1662
>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>> 4.8.11-gentoo #3
>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>> ffff8801d6000600
>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>> ffff8801cf087be0
>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>> ffffffff811ffb79
>> [ 26.858017] Call Trace:
>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size: 512
>> [ 26.858067] Allocated:
>> [ 26.858068] PID = 1662
>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [ 26.858098] Freed:
>> [ 26.858099] PID = 1662
>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [ 26.858128] Memory state around the buggy address:
>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
>> fc fc fc fc
>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
>> fc fc fc fc
>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 26.858134] ^
>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [ 26.858137]
>> ==================================================================
>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>
>>
>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>> NOTICE: Warning: mounting md125 with fatal errors,
>> forcing read-only mount.
>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>> [33530.203564]
>> ==================================================================
>> [33530.203570] BUG: KASAN: use-after-free in
>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>> [33530.203571] Read of size 4 by task mount/11677
>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>> 4.8.11-gentoo #3
>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>> ffff8801d6000600
>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>> ffff88000da87be0
>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>> ffffffff811ffb79
>> [33530.203585] Call Trace:
>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size: 512
>> [33530.203637] Allocated:
>> [33530.203638] PID = 11677
>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [33530.203668] Freed:
>> [33530.203669] PID = 11677
>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>> [33530.203697] Memory state around the buggy address:
>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
>> fc fc fc fc
>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
>> fb fb fb fb
>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [33530.203703] ^
>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
>> fb fb fb fb
>> [33530.203707]
>> ==================================================================
>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>> --
>> To unsubscribe from this list: send the line "unsubscribe reiserfs-devel"
>> in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2016-12-18 12:17 ` Dušan Čolić
@ 2016-12-18 12:44 ` Edward Shishkin
2016-12-18 13:46 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2016-12-18 12:44 UTC (permalink / raw)
To: Dušan Čolić; +Cc: reiserfs-devel
[-- Attachment #1: Type: text/plain, Size: 23976 bytes --]
Try this one in addition.
Thanks,
Edward.
On 12/18/2016 01:17 PM, Dušan Čolić wrote:
> It's OK now, mounts read-only on error.
>
> What about that BUG on mount?
>
> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
> <edward.shishkin@gmail.com> wrote:
>> Please, check if this help.
>> Apply from reiser4 directory.
>>
>> Thanks,
>> Edward.
>>
>>
>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>> When mounting reiser4 partitions I get the following bug, but the
>>> system keeps working, even as reiser4 remounted partition as read
>>> only.
>>>
>>> All R4 partitions are ccreg40.
>>>
>>> Thanks
>>>
>>> Dushan
>>>
>>> cat /etc/fstab | grep -v "#"
>>>
>>>
>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>> /dev/md123 none swap sw 0
>>> 0
>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>> 0 0
>>> /dev/md125 /mnt/backup reiser4
>>> noatime,noauto,onerror=remount-ro 0 0
>>> /dev/md126 /mnt/media reiser4
>>> noatime,users,onerror=remount-ro 0 0
>>> /dev/md127 /usr/portage reiser4
>>> noatime,onerror=remount-ro 0 0
>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>
>>>
>>> cat /proc/mdstat
>>> Personalities : [raid1]
>>> md122 : active raid1 sdc1[1] sdb1[0]
>>> 104320 blocks [2/2] [UU]
>>>
>>> md123 : active raid1 sdc2[1] sdb2[0]
>>> 594304 blocks [2/2] [UU]
>>>
>>> md124 : active raid1 sdc5[1] sdb5[0]
>>> 9775424 blocks [2/2] [UU]
>>>
>>> md125 : active raid1 sdc6[1] sdb6[0]
>>> 68364480 blocks [2/2] [UU]
>>>
>>> md126 : active raid1 sdc7[1] sdb7[0]
>>> 403110912 blocks [2/2] [UU]
>>>
>>> md127 : active raid1 sdc8[1] sdb8[0]
>>> 6433920 blocks [2/2] [UU]
>>>
>>> df
>>>
>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>> /dev/sda2 37017728 30413152 6604576 83% /
>>> tmpfs 680644 1012 679632 1% /run
>>> dev 10240 0 10240 0% /dev
>>> shm 3403212 1284 3401928 1% /dev/shm
>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>> none 3403212 12 3403200 1% /run/user/1001
>>> none 3403212 0 3403212 0% /run/user/1000
>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>
>>>
>>> dmesg
>>>
>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>> forcing read-only mount.
>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>> [ 2.062410]
>>> ==================================================================
>>> [ 2.063993] BUG: KASAN: use-after-free in
>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo #3
>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>> ffff8801d6000600
>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>> ffff8801d6327ad8
>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>> ffffffff811ffb79
>>> [ 2.075861] Call Trace:
>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size: 512
>>> [ 2.126453] Allocated:
>>> [ 2.128364] PID = 1
>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>> [ 2.163918] Freed:
>>> [ 2.165760] PID = 1
>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>> [ 2.195902] Memory state around the buggy address:
>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
>>> fc fc fc fc
>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
>>> fc fc fc fc
>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 2.202460] ^
>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 2.207471]
>>> ==================================================================
>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>> disk format upgrade.
>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>> ehci-pci
>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>> ehci-pci
>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>> listeners, quitting
>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device
>>> 8:2.
>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
>>> ffffffff82178000)
>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
>>> ffff880001c00000)
>>> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
>>> ffff880002000000)
>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using
>>> ehci-pci
>>> [ 5.221431] random: crng init done
>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>> extents:1 across:594300k
>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>> [ 7.661541]
>>> ==================================================================
>>> [ 7.661546] BUG: KASAN: use-after-free in
>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>> [ 7.661548] Read of size 4 by task mount/1662
>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>> 4.8.11-gentoo #3
>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>> ffff8801d6000600
>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>> ffff8801cf087be0
>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>> ffffffff811ffb79
>>> [ 7.661561] Call Trace:
>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size: 512
>>> [ 7.661615] Allocated:
>>> [ 7.661615] PID = 1662
>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [ 7.661646] Freed:
>>> [ 7.661646] PID = 1662
>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [ 7.661675] Memory state around the buggy address:
>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
>>> fc fc fc fc
>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 7.661681] ^
>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 7.661685]
>>> ==================================================================
>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>> [ 11.016722] rcu-perf:Test complete
>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>> [ 26.857995]
>>> ==================================================================
>>> [ 26.858002] BUG: KASAN: use-after-free in
>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>> [ 26.858003] Read of size 4 by task mount/1662
>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>> 4.8.11-gentoo #3
>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>> ffff8801d6000600
>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>> ffff8801cf087be0
>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>> ffffffff811ffb79
>>> [ 26.858017] Call Trace:
>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size: 512
>>> [ 26.858067] Allocated:
>>> [ 26.858068] PID = 1662
>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [ 26.858098] Freed:
>>> [ 26.858099] PID = 1662
>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [ 26.858128] Memory state around the buggy address:
>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
>>> fc fc fc fc
>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
>>> fc fc fc fc
>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 26.858134] ^
>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [ 26.858137]
>>> ==================================================================
>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>
>>>
>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>> NOTICE: Warning: mounting md125 with fatal errors,
>>> forcing read-only mount.
>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>> [33530.203564]
>>> ==================================================================
>>> [33530.203570] BUG: KASAN: use-after-free in
>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>> [33530.203571] Read of size 4 by task mount/11677
>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>> 4.8.11-gentoo #3
>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>> ffff8801d6000600
>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>> ffff88000da87be0
>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>> ffffffff811ffb79
>>> [33530.203585] Call Trace:
>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size: 512
>>> [33530.203637] Allocated:
>>> [33530.203638] PID = 11677
>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [33530.203668] Freed:
>>> [33530.203669] PID = 11677
>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>> [33530.203697] Memory state around the buggy address:
>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
>>> fc fc fc fc
>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
>>> fb fb fb fb
>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [33530.203703] ^
>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
>>> fb fb fb fb
>>> [33530.203707]
>>> ==================================================================
>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe reiserfs-devel"
>>> in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>
[-- Attachment #2: reiser4-access-freed-memory-fixup.patch --]
[-- Type: text/x-patch, Size: 738 bytes --]
diff --git a/plugin/disk_format/disk_format40.c b/plugin/disk_format/disk_format40.c
index 41d7bbc..68b2662 100644
--- a/plugin/disk_format/disk_format40.c
+++ b/plugin/disk_format/disk_format40.c
@@ -372,11 +372,11 @@ static int try_init_format40(struct super_block *super,
reiser4_set_block_count(super, get_format40_block_count(sb_copy));
sbinfo->blocks_free = get_format40_free_blocks(sb_copy);
sbinfo->version = get_format40_version(sb_copy);
- kfree(sb_copy);
if (update_backup_version(sb_copy))
printk("reiser4: %s: use 'fsck.reiser4 --fix' "
"to complete disk format upgrade.\n", super->s_id);
+ kfree(sb_copy);
sbinfo->fsuid = 0;
sbinfo->fs_flags |= (1 << REISER4_ADG); /* hard links for directories
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2016-12-18 12:44 ` Edward Shishkin
@ 2016-12-18 13:46 ` Dušan Čolić
2016-12-24 8:48 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2016-12-18 13:46 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
That was it, no more BUG on mount.
Thanks a lot
Dushan
On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> Try this one in addition.
>
> Thanks,
> Edward.
>
>
> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>
>> It's OK now, mounts read-only on error.
>>
>> What about that BUG on mount?
>>
>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>> <edward.shishkin@gmail.com> wrote:
>>>
>>> Please, check if this help.
>>> Apply from reiser4 directory.
>>>
>>> Thanks,
>>> Edward.
>>>
>>>
>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>
>>>> When mounting reiser4 partitions I get the following bug, but the
>>>> system keeps working, even as reiser4 remounted partition as read
>>>> only.
>>>>
>>>> All R4 partitions are ccreg40.
>>>>
>>>> Thanks
>>>>
>>>> Dushan
>>>>
>>>> cat /etc/fstab | grep -v "#"
>>>>
>>>>
>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>> /dev/md123 none swap sw
>>>> 0
>>>> 0
>>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>>> 0 0
>>>> /dev/md125 /mnt/backup reiser4
>>>> noatime,noauto,onerror=remount-ro 0 0
>>>> /dev/md126 /mnt/media reiser4
>>>> noatime,users,onerror=remount-ro 0 0
>>>> /dev/md127 /usr/portage reiser4
>>>> noatime,onerror=remount-ro 0 0
>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>
>>>>
>>>> cat /proc/mdstat
>>>> Personalities : [raid1]
>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>> 104320 blocks [2/2] [UU]
>>>>
>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>> 594304 blocks [2/2] [UU]
>>>>
>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>> 9775424 blocks [2/2] [UU]
>>>>
>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>> 68364480 blocks [2/2] [UU]
>>>>
>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>> 403110912 blocks [2/2] [UU]
>>>>
>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>> 6433920 blocks [2/2] [UU]
>>>>
>>>> df
>>>>
>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>> tmpfs 680644 1012 679632 1% /run
>>>> dev 10240 0 10240 0% /dev
>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>> none 3403212 12 3403200 1% /run/user/1001
>>>> none 3403212 0 3403212 0% /run/user/1000
>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>
>>>>
>>>> dmesg
>>>>
>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>>> forcing read-only mount.
>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>> [ 2.062410]
>>>> ==================================================================
>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo
>>>> #3
>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>>> ffff8801d6000600
>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>>> ffff8801d6327ad8
>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>>> ffffffff811ffb79
>>>> [ 2.075861] Call Trace:
>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size:
>>>> 512
>>>> [ 2.126453] Allocated:
>>>> [ 2.128364] PID = 1
>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>> [ 2.163918] Freed:
>>>> [ 2.165760] PID = 1
>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>> [ 2.195902] Memory state around the buggy address:
>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>> fc fc fc fc
>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
>>>> fc fc fc fc
>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 2.202460] ^
>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 2.207471]
>>>> ==================================================================
>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>>> disk format upgrade.
>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>>> ehci-pci
>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>>> ehci-pci
>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>> listeners, quitting
>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device
>>>> 8:2.
>>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
>>>> ffffffff82178000)
>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
>>>> ffff880001c00000)
>>>> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
>>>> ffff880002000000)
>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using
>>>> ehci-pci
>>>> [ 5.221431] random: crng init done
>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>> extents:1 across:594300k
>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>> [ 7.661541]
>>>> ==================================================================
>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>> 4.8.11-gentoo #3
>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>>> ffff8801d6000600
>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>>> ffff8801cf087be0
>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>>> ffffffff811ffb79
>>>> [ 7.661561] Call Trace:
>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size:
>>>> 512
>>>> [ 7.661615] Allocated:
>>>> [ 7.661615] PID = 1662
>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [ 7.661646] Freed:
>>>> [ 7.661646] PID = 1662
>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [ 7.661675] Memory state around the buggy address:
>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
>>>> fc fc fc fc
>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 7.661681] ^
>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 7.661685]
>>>> ==================================================================
>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>> [ 11.016722] rcu-perf:Test complete
>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>> [ 26.857995]
>>>> ==================================================================
>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>> 4.8.11-gentoo #3
>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>>> ffff8801d6000600
>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>>> ffff8801cf087be0
>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>>> ffffffff811ffb79
>>>> [ 26.858017] Call Trace:
>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size:
>>>> 512
>>>> [ 26.858067] Allocated:
>>>> [ 26.858068] PID = 1662
>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [ 26.858098] Freed:
>>>> [ 26.858099] PID = 1662
>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [ 26.858128] Memory state around the buggy address:
>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
>>>> fc fc fc fc
>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
>>>> fc fc fc fc
>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 26.858134] ^
>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [ 26.858137]
>>>> ==================================================================
>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>
>>>>
>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>> NOTICE: Warning: mounting md125 with fatal errors,
>>>> forcing read-only mount.
>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>> [33530.203564]
>>>> ==================================================================
>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>> [33530.203571] Read of size 4 by task mount/11677
>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>> 4.8.11-gentoo #3
>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>>> ffff8801d6000600
>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>>> ffff88000da87be0
>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>>> ffffffff811ffb79
>>>> [33530.203585] Call Trace:
>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size:
>>>> 512
>>>> [33530.203637] Allocated:
>>>> [33530.203638] PID = 11677
>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [33530.203668] Freed:
>>>> [33530.203669] PID = 11677
>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> [33530.203697] Memory state around the buggy address:
>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>> fc fc fc fc
>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
>>>> fb fb fb fb
>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [33530.203703] ^
>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>> fb fb fb fb
>>>> [33530.203707]
>>>> ==================================================================
>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe
>>>> reiserfs-devel"
>>>> in
>>>> the body of a message to majordomo@vger.kernel.org
>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>
>>>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2016-12-18 13:46 ` Dušan Čolić
@ 2016-12-24 8:48 ` Dušan Čolić
2016-12-25 15:32 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2016-12-24 8:48 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
> That was it, no more BUG on mount.
>
I spoke prematurely.
Looks like I had 2 different BUGs on mount:
1. BUG when mounting partition with old disk format - that was solved
with 4.8.1 patch
2. BUG when mounting dismounted partition - this one is not solved
When partitions are mounted on boot they mount OK, but when system
finishes booting when I try to mount them I get this BUG:
Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format 4.0.1.
Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
tainted 4.8.11-gentoo #5
Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
ffffffff814241c5 0000000000000005
Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
ffffffff811ab42a 026040c07d0379f0
Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
00000040026040c0 ffff88007d037ad0
Dec 24 09:41:21 krshina3 kernel: Call Trace:
Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>] dump_stack+0x4d/0x68
Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
warn_alloc_failed+0xba/0x160
Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
get_page_from_freelist+0x143/0xcf0
Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
__alloc_pages_nodemask+0x2f3/0xd40
Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
kmemcheck_pte_lookup+0x28/0x60
Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
cache_alloc_refill+0xed/0x6a0
Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
kmem_cache_alloc+0xf9/0x110
Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
znodes_tree_init+0x5f/0x210
Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
reiser4_init_tree+0x8e/0x150
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
init_format_format40+0x345/0x790
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
unlock_new_inode+0x64/0xa0
Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>] fill_super+0x14a/0x300
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>] do_mount+0x1d2/0x1080
Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
copy_mount_options+0x111/0x220
Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
copy_mount_options+0xfa/0x220
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>] SyS_mount+0x66/0xb0
Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
entry_SYSCALL_64_fastpath+0x13/0x8f
Dec 24 09:41:21 krshina3 kernel: Mem-Info:
Dec 24 09:41:21 krshina3 kernel: active_anon:453454
inactive_anon:113498 isolated_anon:0\x0a active_file:189238
inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
writeback:0 unstable:0\x0a slab_reclaimable:55782
slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
bounce:0\x0a free:13271 free_pcp:0 free_cma:0
Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
unevictable:7464kB isolated(anon):0kB isolated(file):0kB
mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
managed:15900kB mlocked:0kB slab_reclaimable:0kB
slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
free_pcp:0kB local_pcp:0kB free_cma:0kB
Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
active_file:172284kB inactive_file:1693924kB unevictable:0kB
writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
slab_reclaimable:85100kB slab_unreclaimable:120576kB
kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
local_pcp:0kB free_cma:0kB
Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
active_file:584668kB inactive_file:1509216kB unevictable:7464kB
writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
slab_reclaimable:138028kB slab_unreclaimable:121008kB
kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
local_pcp:0kB free_cma:0kB
Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
1*2048kB (M) 3*4096kB (M) = 15896kB
Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
0*1024kB 0*2048kB 0*4096kB = 22068kB
Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
0*2048kB 0*4096kB = 15180kB
Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0, find 0/0
Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
> Thanks a lot
>
> Dushan
>
> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
> <edward.shishkin@gmail.com> wrote:
>> Try this one in addition.
>>
>> Thanks,
>> Edward.
>>
>>
>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>
>>> It's OK now, mounts read-only on error.
>>>
>>> What about that BUG on mount?
>>>
>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>> <edward.shishkin@gmail.com> wrote:
>>>>
>>>> Please, check if this help.
>>>> Apply from reiser4 directory.
>>>>
>>>> Thanks,
>>>> Edward.
>>>>
>>>>
>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>
>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>> only.
>>>>>
>>>>> All R4 partitions are ccreg40.
>>>>>
>>>>> Thanks
>>>>>
>>>>> Dushan
>>>>>
>>>>> cat /etc/fstab | grep -v "#"
>>>>>
>>>>>
>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>> /dev/md123 none swap sw
>>>>> 0
>>>>> 0
>>>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>>>> 0 0
>>>>> /dev/md125 /mnt/backup reiser4
>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>> /dev/md126 /mnt/media reiser4
>>>>> noatime,users,onerror=remount-ro 0 0
>>>>> /dev/md127 /usr/portage reiser4
>>>>> noatime,onerror=remount-ro 0 0
>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>
>>>>>
>>>>> cat /proc/mdstat
>>>>> Personalities : [raid1]
>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>> 104320 blocks [2/2] [UU]
>>>>>
>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>> 594304 blocks [2/2] [UU]
>>>>>
>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>> 9775424 blocks [2/2] [UU]
>>>>>
>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>> 68364480 blocks [2/2] [UU]
>>>>>
>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>> 403110912 blocks [2/2] [UU]
>>>>>
>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>> 6433920 blocks [2/2] [UU]
>>>>>
>>>>> df
>>>>>
>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>> tmpfs 680644 1012 679632 1% /run
>>>>> dev 10240 0 10240 0% /dev
>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>
>>>>>
>>>>> dmesg
>>>>>
>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>>>> forcing read-only mount.
>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>> [ 2.062410]
>>>>> ==================================================================
>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo
>>>>> #3
>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>>>> ffff8801d6000600
>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>>>> ffff8801d6327ad8
>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>>>> ffffffff811ffb79
>>>>> [ 2.075861] Call Trace:
>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size:
>>>>> 512
>>>>> [ 2.126453] Allocated:
>>>>> [ 2.128364] PID = 1
>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>> [ 2.163918] Freed:
>>>>> [ 2.165760] PID = 1
>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>> [ 2.195902] Memory state around the buggy address:
>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>> fc fc fc fc
>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>> fc fc fc fc
>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 2.202460] ^
>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 2.207471]
>>>>> ==================================================================
>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>>>> disk format upgrade.
>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>>>> ehci-pci
>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>>>> ehci-pci
>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>> listeners, quitting
>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device
>>>>> 8:2.
>>>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
>>>>> ffffffff82178000)
>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
>>>>> ffff880001c00000)
>>>>> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
>>>>> ffff880002000000)
>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using
>>>>> ehci-pci
>>>>> [ 5.221431] random: crng init done
>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>> extents:1 across:594300k
>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>> [ 7.661541]
>>>>> ==================================================================
>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>> 4.8.11-gentoo #3
>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>>>> ffff8801d6000600
>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>>>> ffff8801cf087be0
>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>>>> ffffffff811ffb79
>>>>> [ 7.661561] Call Trace:
>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size:
>>>>> 512
>>>>> [ 7.661615] Allocated:
>>>>> [ 7.661615] PID = 1662
>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [ 7.661646] Freed:
>>>>> [ 7.661646] PID = 1662
>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [ 7.661675] Memory state around the buggy address:
>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>> fc fc fc fc
>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 7.661681] ^
>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 7.661685]
>>>>> ==================================================================
>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>> [ 11.016722] rcu-perf:Test complete
>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>> [ 26.857995]
>>>>> ==================================================================
>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>> 4.8.11-gentoo #3
>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>>>> ffff8801d6000600
>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>>>> ffff8801cf087be0
>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>>>> ffffffff811ffb79
>>>>> [ 26.858017] Call Trace:
>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size:
>>>>> 512
>>>>> [ 26.858067] Allocated:
>>>>> [ 26.858068] PID = 1662
>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [ 26.858098] Freed:
>>>>> [ 26.858099] PID = 1662
>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [ 26.858128] Memory state around the buggy address:
>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>> fc fc fc fc
>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>> fc fc fc fc
>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 26.858134] ^
>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [ 26.858137]
>>>>> ==================================================================
>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>
>>>>>
>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>> NOTICE: Warning: mounting md125 with fatal errors,
>>>>> forcing read-only mount.
>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>> [33530.203564]
>>>>> ==================================================================
>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>> 4.8.11-gentoo #3
>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>>>> ffff8801d6000600
>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>>>> ffff88000da87be0
>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>>>> ffffffff811ffb79
>>>>> [33530.203585] Call Trace:
>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size:
>>>>> 512
>>>>> [33530.203637] Allocated:
>>>>> [33530.203638] PID = 11677
>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [33530.203668] Freed:
>>>>> [33530.203669] PID = 11677
>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> [33530.203697] Memory state around the buggy address:
>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>> fc fc fc fc
>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
>>>>> fb fb fb fb
>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [33530.203703] ^
>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>> fb fb fb fb
>>>>> [33530.203707]
>>>>> ==================================================================
>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>> --
>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>> reiserfs-devel"
>>>>> in
>>>>> the body of a message to majordomo@vger.kernel.org
>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>>
>>>>
>>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2016-12-24 8:48 ` Dušan Čolić
@ 2016-12-25 15:32 ` Dušan Čolić
2017-01-06 15:37 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2016-12-25 15:32 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com> wrote:
> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>> That was it, no more BUG on mount.
>>
> I spoke prematurely.
>
> Looks like I had 2 different BUGs on mount:
> 1. BUG when mounting partition with old disk format - that was solved
> with 4.8.1 patch
> 2. BUG when mounting dismounted partition - this one is not solved
>
When I I get this BUG I do:
echo 1 > /proc/sys/vm/drop_caches
and everything works OK again.
> When partitions are mounted on boot they mount OK, but when system
> finishes booting when I try to mount them I get this BUG:
>
>
> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format 4.0.1.
> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
> tainted 4.8.11-gentoo #5
> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
> ffffffff814241c5 0000000000000005
> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
> ffffffff811ab42a 026040c07d0379f0
> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
> 00000040026040c0 ffff88007d037ad0
> Dec 24 09:41:21 krshina3 kernel: Call Trace:
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>] dump_stack+0x4d/0x68
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
> warn_alloc_failed+0xba/0x160
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
> get_page_from_freelist+0x143/0xcf0
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
> __alloc_pages_nodemask+0x2f3/0xd40
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
> kmemcheck_pte_lookup+0x28/0x60
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
> cache_alloc_refill+0xed/0x6a0
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
> kmem_cache_alloc+0xf9/0x110
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
> znodes_tree_init+0x5f/0x210
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
> reiser4_init_tree+0x8e/0x150
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
> init_format_format40+0x345/0x790
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
> unlock_new_inode+0x64/0xa0
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>] fill_super+0x14a/0x300
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>] do_mount+0x1d2/0x1080
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
> copy_mount_options+0x111/0x220
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
> copy_mount_options+0xfa/0x220
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>] SyS_mount+0x66/0xb0
> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
> entry_SYSCALL_64_fastpath+0x13/0x8f
> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
> writeback:0 unstable:0\x0a slab_reclaimable:55782
> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
> managed:15900kB mlocked:0kB slab_reclaimable:0kB
> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
> free_pcp:0kB local_pcp:0kB free_cma:0kB
> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
> active_file:172284kB inactive_file:1693924kB unevictable:0kB
> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
> slab_reclaimable:85100kB slab_unreclaimable:120576kB
> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
> local_pcp:0kB free_cma:0kB
> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
> writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
> slab_reclaimable:138028kB slab_unreclaimable:121008kB
> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
> local_pcp:0kB free_cma:0kB
> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
> 1*2048kB (M) 3*4096kB (M) = 15896kB
> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
> 0*1024kB 0*2048kB 0*4096kB = 22068kB
> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
> 0*2048kB 0*4096kB = 15180kB
> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0, find 0/0
> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>
>
>
>> Thanks a lot
>>
>> Dushan
>>
>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>> <edward.shishkin@gmail.com> wrote:
>>> Try this one in addition.
>>>
>>> Thanks,
>>> Edward.
>>>
>>>
>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>
>>>> It's OK now, mounts read-only on error.
>>>>
>>>> What about that BUG on mount?
>>>>
>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>> <edward.shishkin@gmail.com> wrote:
>>>>>
>>>>> Please, check if this help.
>>>>> Apply from reiser4 directory.
>>>>>
>>>>> Thanks,
>>>>> Edward.
>>>>>
>>>>>
>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>
>>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>>> only.
>>>>>>
>>>>>> All R4 partitions are ccreg40.
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> Dushan
>>>>>>
>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>
>>>>>>
>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>> /dev/md123 none swap sw
>>>>>> 0
>>>>>> 0
>>>>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>>>>> 0 0
>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>> /dev/md126 /mnt/media reiser4
>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>> /dev/md127 /usr/portage reiser4
>>>>>> noatime,onerror=remount-ro 0 0
>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>
>>>>>>
>>>>>> cat /proc/mdstat
>>>>>> Personalities : [raid1]
>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>> 104320 blocks [2/2] [UU]
>>>>>>
>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>> 594304 blocks [2/2] [UU]
>>>>>>
>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>
>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>
>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>
>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>
>>>>>> df
>>>>>>
>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>> dev 10240 0 10240 0% /dev
>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>
>>>>>>
>>>>>> dmesg
>>>>>>
>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>>>>> forcing read-only mount.
>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>> [ 2.062410]
>>>>>> ==================================================================
>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo
>>>>>> #3
>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>>>>> ffff8801d6000600
>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>>>>> ffff8801d6327ad8
>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>>>>> ffffffff811ffb79
>>>>>> [ 2.075861] Call Trace:
>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size:
>>>>>> 512
>>>>>> [ 2.126453] Allocated:
>>>>>> [ 2.128364] PID = 1
>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>> [ 2.163918] Freed:
>>>>>> [ 2.165760] PID = 1
>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>> fc fc fc fc
>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>> fc fc fc fc
>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 2.202460] ^
>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 2.207471]
>>>>>> ==================================================================
>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>>>>> disk format upgrade.
>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>>>>> ehci-pci
>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>>>>> ehci-pci
>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>> listeners, quitting
>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device
>>>>>> 8:2.
>>>>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
>>>>>> ffffffff82178000)
>>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
>>>>>> ffff880001c00000)
>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
>>>>>> ffff880002000000)
>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using
>>>>>> ehci-pci
>>>>>> [ 5.221431] random: crng init done
>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>> extents:1 across:594300k
>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>> [ 7.661541]
>>>>>> ==================================================================
>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>> 4.8.11-gentoo #3
>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>>>>> ffff8801d6000600
>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>>>>> ffff8801cf087be0
>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>>>>> ffffffff811ffb79
>>>>>> [ 7.661561] Call Trace:
>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>>> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size:
>>>>>> 512
>>>>>> [ 7.661615] Allocated:
>>>>>> [ 7.661615] PID = 1662
>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [ 7.661646] Freed:
>>>>>> [ 7.661646] PID = 1662
>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>> fc fc fc fc
>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 7.661681] ^
>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 7.661685]
>>>>>> ==================================================================
>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>> [ 26.857995]
>>>>>> ==================================================================
>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>> 4.8.11-gentoo #3
>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>>>>> ffff8801d6000600
>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>>>>> ffff8801cf087be0
>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>>>>> ffffffff811ffb79
>>>>>> [ 26.858017] Call Trace:
>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size:
>>>>>> 512
>>>>>> [ 26.858067] Allocated:
>>>>>> [ 26.858068] PID = 1662
>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [ 26.858098] Freed:
>>>>>> [ 26.858099] PID = 1662
>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>> fc fc fc fc
>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>> fc fc fc fc
>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 26.858134] ^
>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [ 26.858137]
>>>>>> ==================================================================
>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>
>>>>>>
>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>> NOTICE: Warning: mounting md125 with fatal errors,
>>>>>> forcing read-only mount.
>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>> [33530.203564]
>>>>>> ==================================================================
>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>> 4.8.11-gentoo #3
>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>>>>> ffff8801d6000600
>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>>>>> ffff88000da87be0
>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>>>>> ffffffff811ffb79
>>>>>> [33530.203585] Call Trace:
>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>>> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size:
>>>>>> 512
>>>>>> [33530.203637] Allocated:
>>>>>> [33530.203638] PID = 11677
>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [33530.203668] Freed:
>>>>>> [33530.203669] PID = 11677
>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>> fc fc fc fc
>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [33530.203703] ^
>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>> fb fb fb fb
>>>>>> [33530.203707]
>>>>>> ==================================================================
>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>> --
>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>> reiserfs-devel"
>>>>>> in
>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>>>
>>>>>
>>>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2016-12-25 15:32 ` Dušan Čolić
@ 2017-01-06 15:37 ` Dušan Čolić
2017-01-07 22:51 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2017-01-06 15:37 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com> wrote:
>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>> That was it, no more BUG on mount.
>>>
>> I spoke prematurely.
>>
>> Looks like I had 2 different BUGs on mount:
>> 1. BUG when mounting partition with old disk format - that was solved
>> with 4.8.1 patch
>> 2. BUG when mounting dismounted partition - this one is not solved
>>
> When I I get this BUG I do:
> echo 1 > /proc/sys/vm/drop_caches
>
> and everything works OK again.
>
With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
that I run daily on R4 partitions I had no occurence of this bug and
before I had it every day.
>
>> When partitions are mounted on boot they mount OK, but when system
>> finishes booting when I try to mount them I get this BUG:
>>
>>
>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format 4.0.1.
>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>> tainted 4.8.11-gentoo #5
>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>> ffffffff814241c5 0000000000000005
>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>> ffffffff811ab42a 026040c07d0379f0
>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>> 00000040026040c0 ffff88007d037ad0
>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>] dump_stack+0x4d/0x68
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>> warn_alloc_failed+0xba/0x160
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>> get_page_from_freelist+0x143/0xcf0
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>> __alloc_pages_nodemask+0x2f3/0xd40
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>> kmemcheck_pte_lookup+0x28/0x60
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>> cache_alloc_refill+0xed/0x6a0
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>> kmem_cache_alloc+0xf9/0x110
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>> znodes_tree_init+0x5f/0x210
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>> reiser4_init_tree+0x8e/0x150
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>> init_format_format40+0x345/0x790
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>> unlock_new_inode+0x64/0xa0
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>> copy_mount_options+0x111/0x220
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>> copy_mount_options+0xfa/0x220
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>> entry_SYSCALL_64_fastpath+0x13/0x8f
>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>> local_pcp:0kB free_cma:0kB
>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>> writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>> local_pcp:0kB free_cma:0kB
>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>> 0*2048kB 0*4096kB = 15180kB
>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0, find 0/0
>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>
>>
>>
>>> Thanks a lot
>>>
>>> Dushan
>>>
>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>> <edward.shishkin@gmail.com> wrote:
>>>> Try this one in addition.
>>>>
>>>> Thanks,
>>>> Edward.
>>>>
>>>>
>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>
>>>>> It's OK now, mounts read-only on error.
>>>>>
>>>>> What about that BUG on mount?
>>>>>
>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>
>>>>>> Please, check if this help.
>>>>>> Apply from reiser4 directory.
>>>>>>
>>>>>> Thanks,
>>>>>> Edward.
>>>>>>
>>>>>>
>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>
>>>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>>>> only.
>>>>>>>
>>>>>>> All R4 partitions are ccreg40.
>>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> Dushan
>>>>>>>
>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>
>>>>>>>
>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>> /dev/md123 none swap sw
>>>>>>> 0
>>>>>>> 0
>>>>>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>>>>>> 0 0
>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>>
>>>>>>>
>>>>>>> cat /proc/mdstat
>>>>>>> Personalities : [raid1]
>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>
>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>
>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>
>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>
>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>
>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>
>>>>>>> df
>>>>>>>
>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>
>>>>>>>
>>>>>>> dmesg
>>>>>>>
>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>>>>>> forcing read-only mount.
>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>> [ 2.062410]
>>>>>>> ==================================================================
>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo
>>>>>>> #3
>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>>>>>> ffff8801d6000600
>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>>>>>> ffff8801d6327ad8
>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>>>>>> ffffffff811ffb79
>>>>>>> [ 2.075861] Call Trace:
>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size:
>>>>>>> 512
>>>>>>> [ 2.126453] Allocated:
>>>>>>> [ 2.128364] PID = 1
>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>> [ 2.163918] Freed:
>>>>>>> [ 2.165760] PID = 1
>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>> fc fc fc fc
>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>> fc fc fc fc
>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 2.202460] ^
>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 2.207471]
>>>>>>> ==================================================================
>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>>>>>> disk format upgrade.
>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>>>>>> ehci-pci
>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>>>>>> ehci-pci
>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>> listeners, quitting
>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device
>>>>>>> 8:2.
>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
>>>>>>> ffffffff82178000)
>>>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
>>>>>>> ffff880001c00000)
>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
>>>>>>> ffff880002000000)
>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using
>>>>>>> ehci-pci
>>>>>>> [ 5.221431] random: crng init done
>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>> extents:1 across:594300k
>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>> [ 7.661541]
>>>>>>> ==================================================================
>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>> 4.8.11-gentoo #3
>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>>>>>> ffff8801d6000600
>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>>>>>> ffff8801cf087be0
>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>>>>>> ffffffff811ffb79
>>>>>>> [ 7.661561] Call Trace:
>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>>>> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size:
>>>>>>> 512
>>>>>>> [ 7.661615] Allocated:
>>>>>>> [ 7.661615] PID = 1662
>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [ 7.661646] Freed:
>>>>>>> [ 7.661646] PID = 1662
>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>> fc fc fc fc
>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 7.661681] ^
>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 7.661685]
>>>>>>> ==================================================================
>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>> [ 26.857995]
>>>>>>> ==================================================================
>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>> 4.8.11-gentoo #3
>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>>>>>> ffff8801d6000600
>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>>>>>> ffff8801cf087be0
>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>>>>>> ffffffff811ffb79
>>>>>>> [ 26.858017] Call Trace:
>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size:
>>>>>>> 512
>>>>>>> [ 26.858067] Allocated:
>>>>>>> [ 26.858068] PID = 1662
>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [ 26.858098] Freed:
>>>>>>> [ 26.858099] PID = 1662
>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>> fc fc fc fc
>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>> fc fc fc fc
>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 26.858134] ^
>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [ 26.858137]
>>>>>>> ==================================================================
>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>
>>>>>>>
>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>> NOTICE: Warning: mounting md125 with fatal errors,
>>>>>>> forcing read-only mount.
>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>> [33530.203564]
>>>>>>> ==================================================================
>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>> 4.8.11-gentoo #3
>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>>>>>> ffff8801d6000600
>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>>>>>> ffff88000da87be0
>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>>>>>> ffffffff811ffb79
>>>>>>> [33530.203585] Call Trace:
>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>>>> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size:
>>>>>>> 512
>>>>>>> [33530.203637] Allocated:
>>>>>>> [33530.203638] PID = 11677
>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [33530.203668] Freed:
>>>>>>> [33530.203669] PID = 11677
>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>> fc fc fc fc
>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [33530.203703] ^
>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>> fb fb fb fb
>>>>>>> [33530.203707]
>>>>>>> ==================================================================
>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>> --
>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>> reiserfs-devel"
>>>>>>> in
>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>>>>
>>>>>>
>>>>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-06 15:37 ` Dušan Čolić
@ 2017-01-07 22:51 ` Edward Shishkin
2017-01-08 7:25 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2017-01-07 22:51 UTC (permalink / raw)
To: Dušan Čolić; +Cc: reiserfs-devel
A deep dive to the page allocator is needed to find
out why the warning (not simply regular ENOMEM).
Edward.
On 01/06/2017 05:37 PM, Dušan Čolić wrote:
> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com> wrote:
>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>> That was it, no more BUG on mount.
>>>>
>>> I spoke prematurely.
>>>
>>> Looks like I had 2 different BUGs on mount:
>>> 1. BUG when mounting partition with old disk format - that was solved
>>> with 4.8.1 patch
>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>
>> When I I get this BUG I do:
>> echo 1 > /proc/sys/vm/drop_caches
>>
>> and everything works OK again.
>>
> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
> that I run daily on R4 partitions I had no occurence of this bug and
> before I had it every day.
>
>
>>> When partitions are mounted on boot they mount OK, but when system
>>> finishes booting when I try to mount them I get this BUG:
>>>
>>>
>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format 4.0.1.
>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>> tainted 4.8.11-gentoo #5
>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>>> ffffffff814241c5 0000000000000005
>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>>> ffffffff811ab42a 026040c07d0379f0
>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>>> 00000040026040c0 ffff88007d037ad0
>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>] dump_stack+0x4d/0x68
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>> warn_alloc_failed+0xba/0x160
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>> get_page_from_freelist+0x143/0xcf0
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>> __alloc_pages_nodemask+0x2f3/0xd40
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>> kmemcheck_pte_lookup+0x28/0x60
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>> cache_alloc_refill+0xed/0x6a0
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>> kmem_cache_alloc+0xf9/0x110
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>> znodes_tree_init+0x5f/0x210
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>> reiser4_init_tree+0x8e/0x150
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>> init_format_format40+0x345/0x790
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>> unlock_new_inode+0x64/0xa0
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>> copy_mount_options+0x111/0x220
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>> copy_mount_options+0xfa/0x220
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>> local_pcp:0kB free_cma:0kB
>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>> writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>> local_pcp:0kB free_cma:0kB
>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>> 0*2048kB 0*4096kB = 15180kB
>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0, find 0/0
>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>
>>>
>>>
>>>> Thanks a lot
>>>>
>>>> Dushan
>>>>
>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>> <edward.shishkin@gmail.com> wrote:
>>>>> Try this one in addition.
>>>>>
>>>>> Thanks,
>>>>> Edward.
>>>>>
>>>>>
>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>> It's OK now, mounts read-only on error.
>>>>>>
>>>>>> What about that BUG on mount?
>>>>>>
>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>> Please, check if this help.
>>>>>>> Apply from reiser4 directory.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Edward.
>>>>>>>
>>>>>>>
>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>>>>> only.
>>>>>>>>
>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>
>>>>>>>> Thanks
>>>>>>>>
>>>>>>>> Dushan
>>>>>>>>
>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>
>>>>>>>>
>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>> /dev/md123 none swap sw
>>>>>>>> 0
>>>>>>>> 0
>>>>>>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>>>>>>> 0 0
>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>>>
>>>>>>>>
>>>>>>>> cat /proc/mdstat
>>>>>>>> Personalities : [raid1]
>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>
>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>
>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>
>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>
>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>
>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>
>>>>>>>> df
>>>>>>>>
>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>
>>>>>>>>
>>>>>>>> dmesg
>>>>>>>>
>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>>>>>>> forcing read-only mount.
>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>> [ 2.062410]
>>>>>>>> ==================================================================
>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.11-gentoo
>>>>>>>> #3
>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>>>>>>> ffff8801d6000600
>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>>>>>>> ffff8801d6327ad8
>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>>>>>>> ffffffff811ffb79
>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>> [ 2.090471] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>> [ 2.116887] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512 size:
>>>>>>>> 512
>>>>>>>> [ 2.126453] Allocated:
>>>>>>>> [ 2.128364] PID = 1
>>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>> [ 2.136188] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>> [ 2.158074] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>> [ 2.163918] Freed:
>>>>>>>> [ 2.165760] PID = 1
>>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>> [ 2.172895] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>> [ 2.191056] [<ffffffff820a84ec>] kernel_init_freeable+0x237/0x24b
>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>> fc fc fc fc
>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>> fc fc fc fc
>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 2.202460] ^
>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 2.207471]
>>>>>>>> ==================================================================
>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>>>>>>> disk format upgrade.
>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>>>>>>> ehci-pci
>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>>>>>>> ehci-pci
>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>> listeners, quitting
>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on device
>>>>>>>> 8:2.
>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000 -
>>>>>>>> ffffffff82178000)
>>>>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K (ffff880001a67000 -
>>>>>>>> ffff880001c00000)
>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K (ffff880001e32000 -
>>>>>>>> ffff880002000000)
>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4 using
>>>>>>>> ehci-pci
>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>>> extents:1 across:594300k
>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>> [ 7.661541]
>>>>>>>> ==================================================================
>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>> 4.8.11-gentoo #3
>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>>>>>>> ffff8801d6000600
>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>>>>>>> ffff8801cf087be0
>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>>>>>>> ffffffff811ffb79
>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>> [ 7.661585] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>>>>> [ 7.661606] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 7.661613] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512 size:
>>>>>>>> 512
>>>>>>>> [ 7.661615] Allocated:
>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>> [ 7.661625] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 7.661643] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [ 7.661646] Freed:
>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>> [ 7.661654] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 7.661672] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>> fc fc fc fc
>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 7.661681] ^
>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 7.661685]
>>>>>>>> ==================================================================
>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>> [ 26.857995]
>>>>>>>> ==================================================================
>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>> 4.8.11-gentoo #3
>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>>>>>>> ffff8801d6000600
>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>>>>>>> ffff8801cf087be0
>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>>>>>>> ffffffff811ffb79
>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>> [ 26.858040] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 26.858059] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 26.858065] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512 size:
>>>>>>>> 512
>>>>>>>> [ 26.858067] Allocated:
>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>> [ 26.858077] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 26.858095] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [ 26.858098] Freed:
>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>> [ 26.858107] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [ 26.858124] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>> fc fc fc fc
>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>> fc fc fc fc
>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 26.858134] ^
>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [ 26.858137]
>>>>>>>> ==================================================================
>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>>
>>>>>>>>
>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>> NOTICE: Warning: mounting md125 with fatal errors,
>>>>>>>> forcing read-only mount.
>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>> [33530.203564]
>>>>>>>> ==================================================================
>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>> 4.8.11-gentoo #3
>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>>>>>>> ffff8801d6000600
>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>>>>>>> ffff88000da87be0
>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>>>>>>> ffffffff811ffb79
>>>>>>>> [33530.203585] Call Trace:
>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>> [33530.203603] [<ffffffff81304b11>] ? init_format_format40+0x401/0x750
>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>> [33530.203608] [<ffffffff81304b11>] init_format_format40+0x401/0x750
>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [33530.203627] [<ffffffff812337f1>] ? copy_mount_options+0x111/0x220
>>>>>>>> [33530.203629] [<ffffffff812337da>] ? copy_mount_options+0xfa/0x220
>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [33530.203635] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512 size:
>>>>>>>> 512
>>>>>>>> [33530.203637] Allocated:
>>>>>>>> [33530.203638] PID = 11677
>>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>> [33530.203647] [<ffffffff813048bc>] init_format_format40+0x1ac/0x750
>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [33530.203665] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [33530.203668] Freed:
>>>>>>>> [33530.203669] PID = 11677
>>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>> [33530.203676] [<ffffffff81304b09>] init_format_format40+0x3f9/0x750
>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>> [33530.203694] [<ffffffff81a5761b>] entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>> fc fc fc fc
>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [33530.203703] ^
>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>> fb fb fb fb
>>>>>>>> [33530.203707]
>>>>>>>> ==================================================================
>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>>> --
>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>> reiserfs-devel"
>>>>>>>> in
>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>>>>>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-07 22:51 ` Edward Shishkin
@ 2017-01-08 7:25 ` Dušan Čolić
2017-01-08 13:09 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2017-01-08 7:25 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> A deep dive to the page allocator is needed to find
> out why the warning (not simply regular ENOMEM).
>
> Edward.
>
This happens without any memory pressure, with 4G of 8G RAM free and
no swap activity.
I reproduced it on freshly booted system.
>
> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>
>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>
>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>
>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>
>>>>> That was it, no more BUG on mount.
>>>>>
>>>> I spoke prematurely.
>>>>
>>>> Looks like I had 2 different BUGs on mount:
>>>> 1. BUG when mounting partition with old disk format - that was solved
>>>> with 4.8.1 patch
>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>
>>> When I I get this BUG I do:
>>> echo 1 > /proc/sys/vm/drop_caches
>>>
>>> and everything works OK again.
>>>
>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>> that I run daily on R4 partitions I had no occurence of this bug and
>> before I had it every day.
>>
>>
>>>> When partitions are mounted on boot they mount OK, but when system
>>>> finishes booting when I try to mount them I get this BUG:
>>>>
>>>>
>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>> 4.0.1.
>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>> tainted 4.8.11-gentoo #5
>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>>>> ffffffff814241c5 0000000000000005
>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>>>> ffffffff811ab42a 026040c07d0379f0
>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>>>> 00000040026040c0 ffff88007d037ad0
>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>> dump_stack+0x4d/0x68
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>> warn_alloc_failed+0xba/0x160
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>> get_page_from_freelist+0x143/0xcf0
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>> kmemcheck_pte_lookup+0x28/0x60
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>> cache_alloc_refill+0xed/0x6a0
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>> kmem_cache_alloc+0xf9/0x110
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>> znodes_tree_init+0x5f/0x210
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>> reiser4_init_tree+0x8e/0x150
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>> init_format_format40+0x345/0x790
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>> unlock_new_inode+0x64/0xa0
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>> fill_super+0x14a/0x300
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>> mount_bdev+0x1bf/0x200
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>> reiser4_mount+0x20/0x20
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>> reiser4_mount+0x10/0x20
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>> mount_fs+0x2e/0xe0
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>> vfs_kern_mount+0x66/0x190
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>> do_mount+0x1d2/0x1080
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>> copy_mount_options+0x111/0x220
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>> copy_mount_options+0xfa/0x220
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>> SyS_mount+0x66/0xb0
>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>> local_pcp:0kB free_cma:0kB
>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>> writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>> local_pcp:0kB free_cma:0kB
>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>> 0*2048kB 0*4096kB = 15180kB
>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0, find
>>>> 0/0
>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>
>>>>
>>>>
>>>>> Thanks a lot
>>>>>
>>>>> Dushan
>>>>>
>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>
>>>>>> Try this one in addition.
>>>>>>
>>>>>> Thanks,
>>>>>> Edward.
>>>>>>
>>>>>>
>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>
>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>
>>>>>>> What about that BUG on mount?
>>>>>>>
>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>
>>>>>>>> Please, check if this help.
>>>>>>>> Apply from reiser4 directory.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Edward.
>>>>>>>>
>>>>>>>>
>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>
>>>>>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>>>>>> only.
>>>>>>>>>
>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>>
>>>>>>>>> Dushan
>>>>>>>>>
>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>> 0
>>>>>>>>> 0
>>>>>>>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>>>>>>>> 0 0
>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> cat /proc/mdstat
>>>>>>>>> Personalities : [raid1]
>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>
>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>
>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>
>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>
>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>
>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>
>>>>>>>>> df
>>>>>>>>>
>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> dmesg
>>>>>>>>>
>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>>>>>>>> forcing read-only mount.
>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>> [ 2.062410]
>>>>>>>>> ==================================================================
>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>> 4.8.11-gentoo
>>>>>>>>> #3
>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>>>>>>>> ffff8801d6000600
>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>>>>>>>> ffff8801d6327ad8
>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>>>>>>>> ffffffff811ffb79
>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512
>>>>>>>>> size:
>>>>>>>>> 512
>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>> fc
>>>>>>>>> fc fc fc fc
>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>> fc
>>>>>>>>> fc fc fc fc
>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 2.202460] ^
>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 2.207471]
>>>>>>>>> ==================================================================
>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>>>>>>>> disk format upgrade.
>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>>>>>>>> ehci-pci
>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>>>>>>>> ehci-pci
>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>> listeners, quitting
>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on
>>>>>>>>> device
>>>>>>>>> 8:2.
>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000
>>>>>>>>> -
>>>>>>>>> ffffffff82178000)
>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>> (ffff880001a67000 -
>>>>>>>>> ffff880001c00000)
>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>> (ffff880001e32000 -
>>>>>>>>> ffff880002000000)
>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4
>>>>>>>>> using
>>>>>>>>> ehci-pci
>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>>>> extents:1 across:594300k
>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>> [ 7.661541]
>>>>>>>>> ==================================================================
>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>>>>>>>> ffff8801d6000600
>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>>>>>>>> ffff8801cf087be0
>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>>>>>>>> ffffffff811ffb79
>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512
>>>>>>>>> size:
>>>>>>>>> 512
>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>> fc
>>>>>>>>> fc fc fc fc
>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 7.661681] ^
>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 7.661685]
>>>>>>>>> ==================================================================
>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>> [ 26.857995]
>>>>>>>>> ==================================================================
>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>>>>>>>> ffff8801d6000600
>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>>>>>>>> ffff8801cf087be0
>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>>>>>>>> ffffffff811ffb79
>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512
>>>>>>>>> size:
>>>>>>>>> 512
>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>> fc
>>>>>>>>> fc fc fc fc
>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>> fc
>>>>>>>>> fc fc fc fc
>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 26.858134] ^
>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [ 26.858137]
>>>>>>>>> ==================================================================
>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>> NOTICE: Warning: mounting md125 with fatal
>>>>>>>>> errors,
>>>>>>>>> forcing read-only mount.
>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>> [33530.203564]
>>>>>>>>> ==================================================================
>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>>>>>>>> ffff8801d6000600
>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>>>>>>>> ffff88000da87be0
>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>>>>>>>> ffffffff811ffb79
>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512
>>>>>>>>> size:
>>>>>>>>> 512
>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [33530.203668] Freed:
>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>> fc
>>>>>>>>> fc fc fc fc
>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [33530.203703] ^
>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>> fb
>>>>>>>>> fb fb fb fb
>>>>>>>>> [33530.203707]
>>>>>>>>> ==================================================================
>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>>>> --
>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>> reiserfs-devel"
>>>>>>>>> in
>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>>>>>>
>>>>>>>>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-08 7:25 ` Dušan Čolić
@ 2017-01-08 13:09 ` Edward Shishkin
2017-01-08 21:26 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2017-01-08 13:09 UTC (permalink / raw)
To: Dušan Čolić; +Cc: reiserfs-devel
[-- Attachment #1: Type: text/plain, Size: 36122 bytes --]
Try to reproduce it with this patch. Let me know about results.
Thanks,
Edward.
On 01/08/2017 09:25 AM, Dušan Čolić wrote:
> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
> <edward.shishkin@gmail.com> wrote:
>> A deep dive to the page allocator is needed to find
>> out why the warning (not simply regular ENOMEM).
>>
>> Edward.
>>
> This happens without any memory pressure, with 4G of 8G RAM free and
> no swap activity.
> I reproduced it on freshly booted system.
>
>
>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>> That was it, no more BUG on mount.
>>>>>>
>>>>> I spoke prematurely.
>>>>>
>>>>> Looks like I had 2 different BUGs on mount:
>>>>> 1. BUG when mounting partition with old disk format - that was solved
>>>>> with 4.8.1 patch
>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>
>>>> When I I get this BUG I do:
>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>
>>>> and everything works OK again.
>>>>
>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>> that I run daily on R4 partitions I had no occurence of this bug and
>>> before I had it every day.
>>>
>>>
>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>
>>>>>
>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>> 4.0.1.
>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>> tainted 4.8.11-gentoo #5
>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>>>>> ffffffff814241c5 0000000000000005
>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>>>>> 00000040026040c0 ffff88007d037ad0
>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>> dump_stack+0x4d/0x68
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>> warn_alloc_failed+0xba/0x160
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>> get_page_from_freelist+0x143/0xcf0
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>> cache_alloc_refill+0xed/0x6a0
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>> kmem_cache_alloc+0xf9/0x110
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>> znodes_tree_init+0x5f/0x210
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>> reiser4_init_tree+0x8e/0x150
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>> init_format_format40+0x345/0x790
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>> unlock_new_inode+0x64/0xa0
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>> fill_super+0x14a/0x300
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>> mount_bdev+0x1bf/0x200
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>> reiser4_mount+0x20/0x20
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>> reiser4_mount+0x10/0x20
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>> mount_fs+0x2e/0xe0
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>> vfs_kern_mount+0x66/0x190
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>> do_mount+0x1d2/0x1080
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>> copy_mount_options+0x111/0x220
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>> copy_mount_options+0xfa/0x220
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>> SyS_mount+0x66/0xb0
>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>> local_pcp:0kB free_cma:0kB
>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>> writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>> local_pcp:0kB free_cma:0kB
>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0, find
>>>>> 0/0
>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>
>>>>>
>>>>>
>>>>>> Thanks a lot
>>>>>>
>>>>>> Dushan
>>>>>>
>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>> Try this one in addition.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Edward.
>>>>>>>
>>>>>>>
>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>
>>>>>>>> What about that BUG on mount?
>>>>>>>>
>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>> Please, check if this help.
>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Edward.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>>>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>>>>>>> only.
>>>>>>>>>>
>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>
>>>>>>>>>> Thanks
>>>>>>>>>>
>>>>>>>>>> Dushan
>>>>>>>>>>
>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>> 0
>>>>>>>>>> 0
>>>>>>>>>> /dev/sda2 / reiser4 noatime,onerror=remount-ro
>>>>>>>>>> 0 0
>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>
>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>
>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>
>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>
>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>
>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>
>>>>>>>>>> df
>>>>>>>>>>
>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>>>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> dmesg
>>>>>>>>>>
>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>> NOTICE: Warning: mounting sda2 with fatal errors,
>>>>>>>>>> forcing read-only mount.
>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>> [ 2.062410]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>> #3
>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20 ffffffff81424185
>>>>>>>>>> ffff8801d6000600
>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48 ffffffff811ff90c
>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800 ffff8801d6327ac8
>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ? kasan_check_write+0x14/0x20
>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512
>>>>>>>>>> size:
>>>>>>>>>> 512
>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>] prepare_namespace+0x135/0x16d
>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>> fc
>>>>>>>>>> fc fc fc fc
>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>> fc
>>>>>>>>>> fc fc fc fc
>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 2.202460] ^
>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 2.207471]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to complete
>>>>>>>>>> disk format upgrade.
>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3 using
>>>>>>>>>> ehci-pci
>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3 using
>>>>>>>>>> ehci-pci
>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>> listeners, quitting
>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on
>>>>>>>>>> device
>>>>>>>>>> 8:2.
>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K (ffffffff82086000
>>>>>>>>>> -
>>>>>>>>>> ffffffff82178000)
>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>> ffff880001c00000)
>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>> ffff880002000000)
>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4
>>>>>>>>>> using
>>>>>>>>>> ehci-pci
>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>> [ 7.661541]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28 ffffffff81424185
>>>>>>>>>> ffff8801d6000600
>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50 ffffffff811ff90c
>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300 ffff8801cf087bd0
>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512
>>>>>>>>>> size:
>>>>>>>>>> 512
>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>> fc
>>>>>>>>>> fc fc fc fc
>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 7.661681] ^
>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 7.661685]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>> [ 26.857995]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28 ffffffff81424185
>>>>>>>>>> ffff8801d6000600
>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50 ffffffff811ff90c
>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080 ffff8801cf087bd0
>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512
>>>>>>>>>> size:
>>>>>>>>>> 512
>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>> fc
>>>>>>>>>> fc fc fc fc
>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>> fc
>>>>>>>>>> fc fc fc fc
>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 26.858134] ^
>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [ 26.858137]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>> NOTICE: Warning: mounting md125 with fatal
>>>>>>>>>> errors,
>>>>>>>>>> forcing read-only mount.
>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>> [33530.203564]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28 ffffffff81424185
>>>>>>>>>> ffff8801d6000600
>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50 ffffffff811ff90c
>>>>>>>>>> ffff88000da87be0
>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0 ffff88000da87bd0
>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>] kasan_report_error+0x1c9/0x4b0
>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512
>>>>>>>>>> size:
>>>>>>>>>> 512
>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [33530.203642] [<ffffffff811fe802>] kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>> fc
>>>>>>>>>> fc fc fc fc
>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [33530.203703] ^
>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>> fb
>>>>>>>>>> fb fb fb fb
>>>>>>>>>> [33530.203707]
>>>>>>>>>> ==================================================================
>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>>>>> --
>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>> reiserfs-devel"
>>>>>>>>>> in
>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>>>>>>>
[-- Attachment #2: reiser4-costly-memory-allocation-fixup.patch --]
[-- Type: text/x-patch, Size: 601 bytes --]
diff --git a/tree.c b/tree.c
index 08574ca..e4712c4 100644
--- a/tree.c
+++ b/tree.c
@@ -1827,6 +1827,12 @@ int reiser4_init_tree(reiser4_tree * tree /* pointer to structure being
assert("nikita-308", height > 0);
assert("nikita-309", nplug != NULL);
assert("zam-587", tree->super != NULL);
+ assert("edward-171", get_current_context() != NULL);
+ /*
+ * We'll perform costly memory allocations for znode hash table, etc.
+ * So, set proper allocation flags
+ */
+ get_current_context()->gfp_mask |= (__GFP_NOWARN | __GFP_REPEAT);
tree->root_block = *root_block;
tree->height = height;
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-08 13:09 ` Edward Shishkin
@ 2017-01-08 21:26 ` Dušan Čolić
2017-01-11 10:10 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2017-01-08 21:26 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
Still doesn't mount but this time no messages in logs except:
Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
There is no second message after it that should say: Jan 8 22:20:32
krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
krshina3 dusan # mount /mnt/backup
mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
krshina3 dusan # cat /etc/fstab | grep -v "#"
/dev/sda1 /boot ext2 noauto,noatime 1 2
/dev/md124 none swap sw 0 0
/dev/sda2 / reiser4
txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
/dev/md125 /mnt/backup reiser4
noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
/dev/md126 /mnt/media reiser4
noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
/dev/md127 /usr/portage reiser4
noatime,onerror=remount-ro,dont_load_bitmap 0 0
/dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> Try to reproduce it with this patch. Let me know about results.
>
> Thanks,
> Edward.
>
>
> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>
>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>> <edward.shishkin@gmail.com> wrote:
>>>
>>> A deep dive to the page allocator is needed to find
>>> out why the warning (not simply regular ENOMEM).
>>>
>>> Edward.
>>>
>> This happens without any memory pressure, with 4G of 8G RAM free and
>> no swap activity.
>> I reproduced it on freshly booted system.
>>
>>
>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>
>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>
>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>>
>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>>>
>>>>>>> That was it, no more BUG on mount.
>>>>>>>
>>>>>> I spoke prematurely.
>>>>>>
>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>> 1. BUG when mounting partition with old disk format - that was solved
>>>>>> with 4.8.1 patch
>>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>>
>>>>> When I I get this BUG I do:
>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>
>>>>> and everything works OK again.
>>>>>
>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>>> that I run daily on R4 partitions I had no occurence of this bug and
>>>> before I had it every day.
>>>>
>>>>
>>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>
>>>>>>
>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>>> 4.0.1.
>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>>> tainted 4.8.11-gentoo #5
>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>>>>>> ffffffff814241c5 0000000000000005
>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>> dump_stack+0x4d/0x68
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>> warn_alloc_failed+0xba/0x160
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>> znodes_tree_init+0x5f/0x210
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>> init_format_format40+0x345/0x790
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>> unlock_new_inode+0x64/0xa0
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>> fill_super+0x14a/0x300
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>> mount_bdev+0x1bf/0x200
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>> reiser4_mount+0x20/0x20
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>> reiser4_mount+0x10/0x20
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>> mount_fs+0x2e/0xe0
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>> vfs_kern_mount+0x66/0x190
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>> do_mount+0x1d2/0x1080
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>> copy_mount_options+0x111/0x220
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>> copy_mount_options+0xfa/0x220
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>> SyS_mount+0x66/0xb0
>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>> local_pcp:0kB free_cma:0kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>> writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>> local_pcp:0kB free_cma:0kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0,
>>>>>> find
>>>>>> 0/0
>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Thanks a lot
>>>>>>>
>>>>>>> Dushan
>>>>>>>
>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>
>>>>>>>> Try this one in addition.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Edward.
>>>>>>>>
>>>>>>>>
>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>
>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>
>>>>>>>>> What about that BUG on mount?
>>>>>>>>>
>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>> Please, check if this help.
>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>
>>>>>>>>>> Thanks,
>>>>>>>>>> Edward.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>
>>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>>>>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>>>>>>>> only.
>>>>>>>>>>>
>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>
>>>>>>>>>>> Thanks
>>>>>>>>>>>
>>>>>>>>>>> Dushan
>>>>>>>>>>>
>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>> 0 0
>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0
>>>>>>>>>>> 0
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>
>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>
>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>
>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>
>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>
>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>
>>>>>>>>>>> df
>>>>>>>>>>>
>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>>>>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> dmesg
>>>>>>>>>>>
>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>> NOTICE: Warning: mounting sda2 with fatal
>>>>>>>>>>> errors,
>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>> #3
>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512
>>>>>>>>>>> size:
>>>>>>>>>>> 512
>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 2.202460] ^
>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>> complete
>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3
>>>>>>>>>>> using
>>>>>>>>>>> ehci-pci
>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3
>>>>>>>>>>> using
>>>>>>>>>>> ehci-pci
>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>>> listeners, quitting
>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on
>>>>>>>>>>> device
>>>>>>>>>>> 8:2.
>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>> -
>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4
>>>>>>>>>>> using
>>>>>>>>>>> ehci-pci
>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512
>>>>>>>>>>> size:
>>>>>>>>>>> 512
>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 7.661681] ^
>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512
>>>>>>>>>>> size:
>>>>>>>>>>> 512
>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 26.858134] ^
>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>> NOTICE: Warning: mounting md125 with fatal
>>>>>>>>>>> errors,
>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512
>>>>>>>>>>> size:
>>>>>>>>>>> 512
>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc
>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb
>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>
>>>>>>>>>>> ==================================================================
>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>>>>>> --
>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>> in
>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>> More majordomo info at
>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>
>>>>>>>>>>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-08 21:26 ` Dušan Čolić
@ 2017-01-11 10:10 ` Edward Shishkin
2017-01-11 10:30 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2017-01-11 10:10 UTC (permalink / raw)
To: Dušan Čolić; +Cc: reiserfs-devel
[-- Attachment #1: Type: text/plain, Size: 39656 bytes --]
Could you also try this patch in addition?
Thanks,
Edward.
On 01/08/2017 10:26 PM, Dušan Čolić wrote:
> Still doesn't mount but this time no messages in logs except:
> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>
> There is no second message after it that should say: Jan 8 22:20:32
> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>
>
> krshina3 dusan # mount /mnt/backup
> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>
> krshina3 dusan # cat /etc/fstab | grep -v "#"
>
>
> /dev/sda1 /boot ext2 noauto,noatime 1 2
> /dev/md124 none swap sw 0 0
> /dev/sda2 / reiser4
> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
> /dev/md125 /mnt/backup reiser4
> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
> /dev/md126 /mnt/media reiser4
> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
> /dev/md127 /usr/portage reiser4
> noatime,onerror=remount-ro,dont_load_bitmap 0 0
> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>
> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>
> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
> <edward.shishkin@gmail.com> wrote:
>> Try to reproduce it with this patch. Let me know about results.
>>
>> Thanks,
>> Edward.
>>
>>
>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>> <edward.shishkin@gmail.com> wrote:
>>>> A deep dive to the page allocator is needed to find
>>>> out why the warning (not simply regular ENOMEM).
>>>>
>>>> Edward.
>>>>
>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>> no swap activity.
>>> I reproduced it on freshly booted system.
>>>
>>>
>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>
>>>>>>> I spoke prematurely.
>>>>>>>
>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>> 1. BUG when mounting partition with old disk format - that was solved
>>>>>>> with 4.8.1 patch
>>>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>>>
>>>>>> When I I get this BUG I do:
>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>
>>>>>> and everything works OK again.
>>>>>>
>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>>>> that I run daily on R4 partitions I had no occurence of this bug and
>>>>> before I had it every day.
>>>>>
>>>>>
>>>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>
>>>>>>>
>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>>>> 4.0.1.
>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>> dump_stack+0x4d/0x68
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>> init_format_format40+0x345/0x790
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>> fill_super+0x14a/0x300
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>> reiser4_mount+0x20/0x20
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>> reiser4_mount+0x10/0x20
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>> mount_fs+0x2e/0xe0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>> do_mount+0x1d2/0x1080
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>> copy_mount_options+0x111/0x220
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>> SyS_mount+0x66/0xb0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803 pagetables:2738
>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB mlocked:7464kB
>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0,
>>>>>>> find
>>>>>>> 0/0
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> Thanks a lot
>>>>>>>>
>>>>>>>> Dushan
>>>>>>>>
>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>> Try this one in addition.
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Edward.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>
>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>
>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>
>>>>>>>>>>> Thanks,
>>>>>>>>>>> Edward.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but the
>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition as read
>>>>>>>>>>>> only.
>>>>>>>>>>>>
>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks
>>>>>>>>>>>>
>>>>>>>>>>>> Dushan
>>>>>>>>>>>>
>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>>> 0
>>>>>>>>>>>> 0
>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>> 0 0
>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0
>>>>>>>>>>>> 0
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>
>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>
>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>
>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>
>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>
>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>
>>>>>>>>>>>> df
>>>>>>>>>>>>
>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup
>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>>>>>>> none 3403212 12 3403200 1% /run/user/1001
>>>>>>>>>>>> none 3403212 0 3403212 0% /run/user/1000
>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> dmesg
>>>>>>>>>>>>
>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>> NOTICE: Warning: mounting sda2 with fatal
>>>>>>>>>>>> errors,
>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>> #3
>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512
>>>>>>>>>>>> size:
>>>>>>>>>>>> 512
>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>] mount_block_root+0x171/0x3ac
>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 2.202460] ^
>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>> complete
>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3
>>>>>>>>>>>> using
>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3
>>>>>>>>>>>> using
>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly on
>>>>>>>>>>>> device
>>>>>>>>>>>> 8:2.
>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>> -
>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data: 16384k
>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4
>>>>>>>>>>>> using
>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512
>>>>>>>>>>>> size:
>>>>>>>>>>>> 512
>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 7.661681] ^
>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512
>>>>>>>>>>>> size:
>>>>>>>>>>>> 512
>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 26.858134] ^
>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>> NOTICE: Warning: mounting md125 with fatal
>>>>>>>>>>>> errors,
>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To be
>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512
>>>>>>>>>>>> size:
>>>>>>>>>>>> 512
>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc
>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb
>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>
>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>>>>>>> --
>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>> in
>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>
[-- Attachment #2: reiser4-use-vmalloc-for-zhash-table-allocation.patch --]
[-- Type: text/x-patch, Size: 521 bytes --]
diff --git a/znode.c b/znode.c
index 2581a0a..f7c77ef 100644
--- a/znode.c
+++ b/znode.c
@@ -188,8 +188,8 @@ blknrhashfn(z_hash_table * table, const reiser4_block_nr * b)
}
/* The hash table definition */
-#define KMALLOC(size) kmalloc((size), reiser4_ctx_gfp_mask_get())
-#define KFREE(ptr, size) kfree(ptr)
+#define KMALLOC(size) reiser4_vmalloc(size)
+#define KFREE(ptr, size) vfree(ptr)
TYPE_SAFE_HASH_DEFINE(z, znode, reiser4_block_nr, zjnode.key.z, zjnode.link.z,
blknrhashfn, blknreq);
#undef KFREE
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-11 10:10 ` Edward Shishkin
@ 2017-01-11 10:30 ` Dušan Čolić
2017-01-11 10:37 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2017-01-11 10:30 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> Could you also try this patch in addition?
>
This fixed it.
Thanks a lot
Dushan
Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Thanks,
> Edward.
>
>
> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>
>> Still doesn't mount but this time no messages in logs except:
>> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>
>> There is no second message after it that should say: Jan 8 22:20:32
>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>
>>
>> krshina3 dusan # mount /mnt/backup
>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>>
>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>
>>
>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>> /dev/md124 none swap sw 0
>> 0
>> /dev/sda2 / reiser4
>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
>> /dev/md125 /mnt/backup reiser4
>> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
>> /dev/md126 /mnt/media reiser4
>> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
>> /dev/md127 /usr/portage reiser4
>> noatime,onerror=remount-ro,dont_load_bitmap 0 0
>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>
>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>
>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>> <edward.shishkin@gmail.com> wrote:
>>>
>>> Try to reproduce it with this patch. Let me know about results.
>>>
>>> Thanks,
>>> Edward.
>>>
>>>
>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>
>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>> <edward.shishkin@gmail.com> wrote:
>>>>>
>>>>> A deep dive to the page allocator is needed to find
>>>>> out why the warning (not simply regular ENOMEM).
>>>>>
>>>>> Edward.
>>>>>
>>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>>> no swap activity.
>>>> I reproduced it on freshly booted system.
>>>>
>>>>
>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>
>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>>>
>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>
>>>>>>>> I spoke prematurely.
>>>>>>>>
>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>> solved
>>>>>>>> with 4.8.1 patch
>>>>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>>>>
>>>>>>> When I I get this BUG I do:
>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>
>>>>>>> and everything works OK again.
>>>>>>>
>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>>>>> that I run daily on R4 partitions I had no occurence of this bug and
>>>>>> before I had it every day.
>>>>>>
>>>>>>
>>>>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>
>>>>>>>>
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>>>>> 4.0.1.
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>>> fill_super+0x14a/0x300
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>> pagetables:2738
>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>> mlocked:7464kB
>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0,
>>>>>>>> find
>>>>>>>> 0/0
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> Thanks a lot
>>>>>>>>>
>>>>>>>>> Dushan
>>>>>>>>>
>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>> Try this one in addition.
>>>>>>>>>>
>>>>>>>>>> Thanks,
>>>>>>>>>> Edward.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>
>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>
>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>
>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks,
>>>>>>>>>>>> Edward.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but
>>>>>>>>>>>>> the
>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition as
>>>>>>>>>>>>> read
>>>>>>>>>>>>> only.
>>>>>>>>>>>>>
>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>
>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>
>>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>>
>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>>
>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>
>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>
>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>
>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>
>>>>>>>>>>>>> df
>>>>>>>>>>>>>
>>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>>>> cgroup_root 10240 0 10240 0%
>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>>>>>>>> none 3403212 12 3403200 1%
>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>> none 3403212 0 3403212 0%
>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>
>>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>> NOTICE: Warning: mounting sda2 with fatal
>>>>>>>>>>>>> errors,
>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>> #3
>>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>> be
>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>]
>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512
>>>>>>>>>>>>> size:
>>>>>>>>>>>>> 512
>>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>]
>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>]
>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 2.202460]
>>>>>>>>>>>>> ^
>>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>> complete
>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3
>>>>>>>>>>>>> using
>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3
>>>>>>>>>>>>> using
>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly
>>>>>>>>>>>>> on
>>>>>>>>>>>>> device
>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>> -
>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data:
>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4
>>>>>>>>>>>>> using
>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>> be
>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512
>>>>>>>>>>>>> size:
>>>>>>>>>>>>> 512
>>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 7.661681]
>>>>>>>>>>>>> ^
>>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>> be
>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512
>>>>>>>>>>>>> size:
>>>>>>>>>>>>> 512
>>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 26.858134]
>>>>>>>>>>>>> ^
>>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>> NOTICE: Warning: mounting md125 with fatal
>>>>>>>>>>>>> errors,
>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>> be
>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512
>>>>>>>>>>>>> size:
>>>>>>>>>>>>> 512
>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc
>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb
>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>>>>>>>> --
>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>> in
>>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>
>>>>>>>>>>>>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-11 10:30 ` Dušan Čolić
@ 2017-01-11 10:37 ` Edward Shishkin
2017-01-11 11:48 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2017-01-11 10:37 UTC (permalink / raw)
To: Dušan Čolić; +Cc: reiserfs-devel
So what about data corruption?
Did you encounter it after enabling swap?
Edward.
On 01/11/2017 11:30 AM, Dušan Čolić wrote:
> On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
> <edward.shishkin@gmail.com> wrote:
>> Could you also try this patch in addition?
>>
> This fixed it.
>
>
> Thanks a lot
>
> Dushan
>
> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>
>
>> Thanks,
>> Edward.
>>
>>
>> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>> Still doesn't mount but this time no messages in logs except:
>>> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>>
>>> There is no second message after it that should say: Jan 8 22:20:32
>>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>>
>>>
>>> krshina3 dusan # mount /mnt/backup
>>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>>>
>>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>>
>>>
>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>> /dev/md124 none swap sw 0
>>> 0
>>> /dev/sda2 / reiser4
>>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>> /dev/md125 /mnt/backup reiser4
>>> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
>>> /dev/md126 /mnt/media reiser4
>>> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
>>> /dev/md127 /usr/portage reiser4
>>> noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>
>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>
>>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>>> <edward.shishkin@gmail.com> wrote:
>>>> Try to reproduce it with this patch. Let me know about results.
>>>>
>>>> Thanks,
>>>> Edward.
>>>>
>>>>
>>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>> A deep dive to the page allocator is needed to find
>>>>>> out why the warning (not simply regular ENOMEM).
>>>>>>
>>>>>> Edward.
>>>>>>
>>>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>>>> no swap activity.
>>>>> I reproduced it on freshly booted system.
>>>>>
>>>>>
>>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com> wrote:
>>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>> wrote:
>>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>> wrote:
>>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>>
>>>>>>>>> I spoke prematurely.
>>>>>>>>>
>>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>>> solved
>>>>>>>>> with 4.8.1 patch
>>>>>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>>>>>
>>>>>>>> When I I get this BUG I do:
>>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>>
>>>>>>>> and everything works OK again.
>>>>>>>>
>>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>>>>>> that I run daily on R4 partitions I had no occurence of this bug and
>>>>>>> before I had it every day.
>>>>>>>
>>>>>>>
>>>>>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>>>>>> 4.0.1.
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte Technology
>>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000 ffff88007d0379b0
>>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000 ffff88007d037a40
>>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202 0000000000000004
>>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866 dirty:1092
>>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>>> pagetables:2738
>>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>>> inactive_anon:453992kB active_file:756952kB inactive_file:3203140kB
>>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB low:36kB
>>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627 6627
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>>> low:8280kB high:11548kB active_anon:810196kB inactive_anon:351420kB
>>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB mlocked:0kB
>>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB inactive_anon:102572kB
>>>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>>> mlocked:7464kB
>>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB (UME)
>>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete 0,
>>>>>>>>> find
>>>>>>>>> 0/0
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> Thanks a lot
>>>>>>>>>>
>>>>>>>>>> Dushan
>>>>>>>>>>
>>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>> Try this one in addition.
>>>>>>>>>>>
>>>>>>>>>>> Thanks,
>>>>>>>>>>> Edward.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>>
>>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>>
>>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but
>>>>>>>>>>>>>> the
>>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition as
>>>>>>>>>>>>>> read
>>>>>>>>>>>>>> only.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec
>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> df
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>>>>> cgroup_root 10240 0 10240 0%
>>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92% /usr/portage
>>>>>>>>>>>>>> none 3403212 12 3403200 1%
>>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>>> none 3403212 0 3403212 0%
>>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>> NOTICE: Warning: mounting sda2 with fatal
>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>>> #3
>>>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>>> be
>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>]
>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache kmalloc-512
>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>]
>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>]
>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 2.202460]
>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>>> complete
>>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3
>>>>>>>>>>>>>> using
>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3
>>>>>>>>>>>>>> using
>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem) readonly
>>>>>>>>>>>>>> on
>>>>>>>>>>>>>> device
>>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>>> -
>>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data:
>>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number 4
>>>>>>>>>>>>>> using
>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123. Priority:-1
>>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>>> be
>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache kmalloc-512
>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 7.661681]
>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100 measurements
>>>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction Model.
>>>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>>> be
>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache kmalloc-512
>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 26.858134]
>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction Model.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>> NOTICE: Warning: mounting md125 with fatal
>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd. To
>>>>>>>>>>>>>> be
>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>] kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ? reiser4_mount+0x20/0x20
>>>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache kmalloc-512
>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>] save_stack_trace+0x26/0x50
>>>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>] kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>] vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction Model.
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>>> in
>>>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-11 10:37 ` Edward Shishkin
@ 2017-01-11 11:48 ` Dušan Čolić
2017-01-31 12:14 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2017-01-11 11:48 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
On Wed, Jan 11, 2017 at 11:37 AM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> So what about data corruption?
> Did you encounter it after enabling swap?
>
Nо.
I just fsck-ed my R4 partitions to check and had no corruptions even
as I had disk full a couple of times on some of them in last weeks.
> Edward.
>
>
> On 01/11/2017 11:30 AM, Dušan Čolić wrote:
>>
>> On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
>> <edward.shishkin@gmail.com> wrote:
>>>
>>> Could you also try this patch in addition?
>>>
>> This fixed it.
>>
>>
>> Thanks a lot
>>
>> Dushan
>>
>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>>
>>
>>> Thanks,
>>> Edward.
>>>
>>>
>>> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>>>
>>>> Still doesn't mount but this time no messages in logs except:
>>>> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>>
>>>> There is no second message after it that should say: Jan 8 22:20:32
>>>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>>>
>>>>
>>>> krshina3 dusan # mount /mnt/backup
>>>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>>>>
>>>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>>>
>>>>
>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>> /dev/md124 none swap sw
>>>> 0
>>>> 0
>>>> /dev/sda2 / reiser4
>>>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>> /dev/md125 /mnt/backup reiser4
>>>> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
>>>> /dev/md126 /mnt/media reiser4
>>>> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
>>>> /dev/md127 /usr/portage reiser4
>>>> noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>
>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>
>>>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>>>> <edward.shishkin@gmail.com> wrote:
>>>>>
>>>>> Try to reproduce it with this patch. Let me know about results.
>>>>>
>>>>> Thanks,
>>>>> Edward.
>>>>>
>>>>>
>>>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>>>
>>>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>
>>>>>>> A deep dive to the page allocator is needed to find
>>>>>>> out why the warning (not simply regular ENOMEM).
>>>>>>>
>>>>>>> Edward.
>>>>>>>
>>>>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>>>>> no swap activity.
>>>>>> I reproduced it on freshly booted system.
>>>>>>
>>>>>>
>>>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>>>
>>>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>>>
>>>>>>>>>> I spoke prematurely.
>>>>>>>>>>
>>>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>>>> solved
>>>>>>>>>> with 4.8.1 patch
>>>>>>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>>>>>>
>>>>>>>>> When I I get this BUG I do:
>>>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>>>
>>>>>>>>> and everything works OK again.
>>>>>>>>>
>>>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>>>>>>> that I run daily on R4 partitions I had no occurence of this bug and
>>>>>>>> before I had it every day.
>>>>>>>>
>>>>>>>>
>>>>>>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>>>>>>> 4.0.1.
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte
>>>>>>>>>> Technology
>>>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000
>>>>>>>>>> ffff88007d0379b0
>>>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000
>>>>>>>>>> ffff88007d037a40
>>>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202
>>>>>>>>>> 0000000000000004
>>>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866
>>>>>>>>>> dirty:1092
>>>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>>>> pagetables:2738
>>>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>>>> inactive_anon:453992kB active_file:756952kB
>>>>>>>>>> inactive_file:3203140kB
>>>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable?
>>>>>>>>>> no
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB
>>>>>>>>>> low:36kB
>>>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627
>>>>>>>>>> 6627
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>>>> low:8280kB high:11548kB active_anon:810196kB
>>>>>>>>>> inactive_anon:351420kB
>>>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB
>>>>>>>>>> mlocked:0kB
>>>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB
>>>>>>>>>> inactive_anon:102572kB
>>>>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>>>> mlocked:7464kB
>>>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB
>>>>>>>>>> (UME)
>>>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete
>>>>>>>>>> 0,
>>>>>>>>>> find
>>>>>>>>>> 0/0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> Thanks a lot
>>>>>>>>>>>
>>>>>>>>>>> Dushan
>>>>>>>>>>>
>>>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Try this one in addition.
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks,
>>>>>>>>>>>> Edward.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>>>
>>>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but
>>>>>>>>>>>>>>> the
>>>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition as
>>>>>>>>>>>>>>> read
>>>>>>>>>>>>>>> only.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1
>>>>>>>>>>>>>>> 2
>>>>>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> df
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>>>>>> cgroup_root 10240 0 10240 0%
>>>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92%
>>>>>>>>>>>>>>> /usr/portage
>>>>>>>>>>>>>>> none 3403212 12 3403200 1%
>>>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>>>> none 3403212 0 3403212 0%
>>>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>> NOTICE: Warning: mounting sda2 with
>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>>>> #3
>>>>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>]
>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>]
>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>]
>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 2.202460]
>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>>>> complete
>>>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3
>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3
>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem)
>>>>>>>>>>>>>>> readonly
>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>> device
>>>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>>>> -
>>>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data:
>>>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number
>>>>>>>>>>>>>>> 4
>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123.
>>>>>>>>>>>>>>> Priority:-1
>>>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 7.661681]
>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100
>>>>>>>>>>>>>>> measurements
>>>>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction
>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 26.858134]
>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction
>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>> NOTICE: Warning: mounting md125 with
>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction
>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>>>> in
>>>>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-11 11:48 ` Dušan Čolić
@ 2017-01-31 12:14 ` Edward Shishkin
2017-02-13 6:47 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2017-01-31 12:14 UTC (permalink / raw)
To: Dušan Čolić; +Cc: reiserfs-devel
[-- Attachment #1: Type: text/plain, Size: 50858 bytes --]
Hi Dushan,
Could you please apply this patch and try to reproduce
the corruption with swap turned off?
Thanks,
Edward.
On 01/11/2017 12:48 PM, Dušan Čolić wrote:
> On Wed, Jan 11, 2017 at 11:37 AM, Edward Shishkin
> <edward.shishkin@gmail.com> wrote:
>> So what about data corruption?
>> Did you encounter it after enabling swap?
>>
> Nо.
>
> I just fsck-ed my R4 partitions to check and had no corruptions even
> as I had disk full a couple of times on some of them in last weeks.
>
>
>> Edward.
>>
>>
>> On 01/11/2017 11:30 AM, Dušan Čolić wrote:
>>> On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
>>> <edward.shishkin@gmail.com> wrote:
>>>> Could you also try this patch in addition?
>>>>
>>> This fixed it.
>>>
>>>
>>> Thanks a lot
>>>
>>> Dushan
>>>
>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>>> Model.
>>>
>>>
>>>> Thanks,
>>>> Edward.
>>>>
>>>>
>>>> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>>>> Still doesn't mount but this time no messages in logs except:
>>>>> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>>
>>>>> There is no second message after it that should say: Jan 8 22:20:32
>>>>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>>>>
>>>>>
>>>>> krshina3 dusan # mount /mnt/backup
>>>>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>>>>>
>>>>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>>>>
>>>>>
>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>> /dev/md124 none swap sw
>>>>> 0
>>>>> 0
>>>>> /dev/sda2 / reiser4
>>>>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>> /dev/md125 /mnt/backup reiser4
>>>>> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
>>>>> /dev/md126 /mnt/media reiser4
>>>>> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
>>>>> /dev/md127 /usr/portage reiser4
>>>>> noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>
>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>
>>>>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>> Try to reproduce it with this patch. Let me know about results.
>>>>>>
>>>>>> Thanks,
>>>>>> Edward.
>>>>>>
>>>>>>
>>>>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>> A deep dive to the page allocator is needed to find
>>>>>>>> out why the warning (not simply regular ENOMEM).
>>>>>>>>
>>>>>>>> Edward.
>>>>>>>>
>>>>>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>>>>>> no swap activity.
>>>>>>> I reproduced it on freshly booted system.
>>>>>>>
>>>>>>>
>>>>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>> wrote:
>>>>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>> wrote:
>>>>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>> wrote:
>>>>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>>>>
>>>>>>>>>>> I spoke prematurely.
>>>>>>>>>>>
>>>>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>>>>> solved
>>>>>>>>>>> with 4.8.1 patch
>>>>>>>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>>>>>>>
>>>>>>>>>> When I I get this BUG I do:
>>>>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>>>>
>>>>>>>>>> and everything works OK again.
>>>>>>>>>>
>>>>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>>>>>>>> that I run daily on R4 partitions I had no occurence of this bug and
>>>>>>>>> before I had it every day.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>>>>>>>> 4.0.1.
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte
>>>>>>>>>>> Technology
>>>>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000
>>>>>>>>>>> ffff88007d0379b0
>>>>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000
>>>>>>>>>>> ffff88007d037a40
>>>>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202
>>>>>>>>>>> 0000000000000004
>>>>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866
>>>>>>>>>>> dirty:1092
>>>>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>>>>> pagetables:2738
>>>>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>>>>> inactive_anon:453992kB active_file:756952kB
>>>>>>>>>>> inactive_file:3203140kB
>>>>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable?
>>>>>>>>>>> no
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB
>>>>>>>>>>> low:36kB
>>>>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627
>>>>>>>>>>> 6627
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>>>>> low:8280kB high:11548kB active_anon:810196kB
>>>>>>>>>>> inactive_anon:351420kB
>>>>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB
>>>>>>>>>>> mlocked:0kB
>>>>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB
>>>>>>>>>>> inactive_anon:102572kB
>>>>>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>>>>> mlocked:7464kB
>>>>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB
>>>>>>>>>>> (UME)
>>>>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete
>>>>>>>>>>> 0,
>>>>>>>>>>> find
>>>>>>>>>>> 0/0
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>> Thanks a lot
>>>>>>>>>>>>
>>>>>>>>>>>> Dushan
>>>>>>>>>>>>
>>>>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>> Try this one in addition.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but
>>>>>>>>>>>>>>>> the
>>>>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition as
>>>>>>>>>>>>>>>> read
>>>>>>>>>>>>>>>> only.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1
>>>>>>>>>>>>>>>> 2
>>>>>>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec
>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> df
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted on
>>>>>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>>>>>>> cgroup_root 10240 0 10240 0%
>>>>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92% /mnt/media
>>>>>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92%
>>>>>>>>>>>>>>>> /usr/portage
>>>>>>>>>>>>>>>> none 3403212 12 3403200 1%
>>>>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>>>>> none 3403212 0 3403212 0%
>>>>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81% /mnt/backup
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>> NOTICE: Warning: mounting sda2 with
>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>>>>> #3
>>>>>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache
>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 2.202460]
>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>>>>> complete
>>>>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number 3
>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number 3
>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem)
>>>>>>>>>>>>>>>> readonly
>>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>>> device
>>>>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>>>>> -
>>>>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data:
>>>>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device number
>>>>>>>>>>>>>>>> 4
>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123.
>>>>>>>>>>>>>>>> Priority:-1
>>>>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache
>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 7.661681]
>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100
>>>>>>>>>>>>>>>> measurements
>>>>>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction
>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache
>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 26.858134]
>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction
>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>> NOTICE: Warning: mounting md125 with
>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G B
>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache
>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction
>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>>>>> in
>>>>>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>>>>
[-- Attachment #2: reiser4-use-nofail-memalloc-for-carry-ops.patch --]
[-- Type: text/x-patch, Size: 1013 bytes --]
diff --git a/carry.c b/carry.c
index 13a03f4..af582e8 100644
--- a/carry.c
+++ b/carry.c
@@ -198,6 +198,7 @@ int reiser4_carry(carry_level * doing /* set of carry operations to be
* NULL in most cases */)
{
int result = 0;
+ gfp_t old_mask;
/* queue of new requests */
carry_level *todo;
ON_DEBUG(STORE_COUNTERS);
@@ -212,6 +213,9 @@ int reiser4_carry(carry_level * doing /* set of carry operations to be
done = todo + 1;
init_carry_level(done, doing->pool);
+ old_mask = get_current_context()->gfp_mask;
+ get_current_context()->gfp_mask |= __GFP_NOFAIL;
+
/* iterate until there is nothing more to do */
while (result == 0 && doing->ops_num > 0) {
carry_level *tmp;
@@ -271,6 +275,7 @@ int reiser4_carry(carry_level * doing /* set of carry operations to be
/* give other threads chance to run */
reiser4_preempt_point();
}
+ get_current_context()->gfp_mask = old_mask;
done_carry_level(done);
/* all counters, but x_refs should remain the same. x_refs can change
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-01-31 12:14 ` Edward Shishkin
@ 2017-02-13 6:47 ` Dušan Čolić
2017-02-13 12:48 ` Edward Shishkin
0 siblings, 1 reply; 20+ messages in thread
From: Dušan Čolić @ 2017-02-13 6:47 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
I used this patch on top of reiser4-for-4.9.patch and I have not been
able to reproduce corruption on OOM that I had before.
I tested with writing to multiple disks and partitions while
deactivating swap and filling the RAM.
I had loads of errors in logs (none R4 related) but no errors when I
fsck-ed R4 partitions.
Thanks
Dushan
On Tue, Jan 31, 2017 at 1:14 PM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> Hi Dushan,
>
> Could you please apply this patch and try to reproduce
> the corruption with swap turned off?
>
> Thanks,
> Edward.
>
>
> On 01/11/2017 12:48 PM, Dušan Čolić wrote:
>>
>> On Wed, Jan 11, 2017 at 11:37 AM, Edward Shishkin
>> <edward.shishkin@gmail.com> wrote:
>>>
>>> So what about data corruption?
>>> Did you encounter it after enabling swap?
>>>
>> Nо.
>>
>> I just fsck-ed my R4 partitions to check and had no corruptions even
>> as I had disk full a couple of times on some of them in last weeks.
>>
>>
>>> Edward.
>>>
>>>
>>> On 01/11/2017 11:30 AM, Dušan Čolić wrote:
>>>>
>>>> On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
>>>> <edward.shishkin@gmail.com> wrote:
>>>>>
>>>>> Could you also try this patch in addition?
>>>>>
>>>> This fixed it.
>>>>
>>>>
>>>> Thanks a lot
>>>>
>>>> Dushan
>>>>
>>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid
>>>> Transaction
>>>> Model.
>>>>
>>>>
>>>>> Thanks,
>>>>> Edward.
>>>>>
>>>>>
>>>>> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>>>>>
>>>>>> Still doesn't mount but this time no messages in logs except:
>>>>>> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>>
>>>>>> There is no second message after it that should say: Jan 8 22:20:32
>>>>>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>>>>>
>>>>>>
>>>>>> krshina3 dusan # mount /mnt/backup
>>>>>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>>>>>>
>>>>>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>>>>>
>>>>>>
>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>> /dev/md124 none swap sw
>>>>>> 0
>>>>>> 0
>>>>>> /dev/sda2 / reiser4
>>>>>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>> /dev/md126 /mnt/media reiser4
>>>>>> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>> /dev/md127 /usr/portage reiser4
>>>>>> noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>
>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>
>>>>>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>
>>>>>>> Try to reproduce it with this patch. Let me know about results.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Edward.
>>>>>>>
>>>>>>>
>>>>>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>>>>>
>>>>>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>
>>>>>>>>> A deep dive to the page allocator is needed to find
>>>>>>>>> out why the warning (not simply regular ENOMEM).
>>>>>>>>>
>>>>>>>>> Edward.
>>>>>>>>>
>>>>>>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>>>>>>> no swap activity.
>>>>>>>> I reproduced it on freshly booted system.
>>>>>>>>
>>>>>>>>
>>>>>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>>>>>
>>>>>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>>>>>
>>>>>>>>>>>> I spoke prematurely.
>>>>>>>>>>>>
>>>>>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>>>>>> solved
>>>>>>>>>>>> with 4.8.1 patch
>>>>>>>>>>>> 2. BUG when mounting dismounted partition - this one is not
>>>>>>>>>>>> solved
>>>>>>>>>>>>
>>>>>>>>>>> When I I get this BUG I do:
>>>>>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>>>>>
>>>>>>>>>>> and everything works OK again.
>>>>>>>>>>>
>>>>>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to
>>>>>>>>>> scripts
>>>>>>>>>> that I run daily on R4 partitions I had no occurence of this bug
>>>>>>>>>> and
>>>>>>>>>> before I had it every day.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>> When partitions are mounted on boot they mount OK, but when
>>>>>>>>>>>> system
>>>>>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk
>>>>>>>>>>>> format
>>>>>>>>>>>> 4.0.1.
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount
>>>>>>>>>>>> Not
>>>>>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte
>>>>>>>>>>>> Technology
>>>>>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000
>>>>>>>>>>>> ffff88007d0379b0
>>>>>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000
>>>>>>>>>>>> ffff88007d037a40
>>>>>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202
>>>>>>>>>>>> 0000000000000004
>>>>>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866
>>>>>>>>>>>> dirty:1092
>>>>>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>>>>>> pagetables:2738
>>>>>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>>>>>> inactive_anon:453992kB active_file:756952kB
>>>>>>>>>>>> inactive_file:3203140kB
>>>>>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0
>>>>>>>>>>>> all_unreclaimable?
>>>>>>>>>>>> no
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB
>>>>>>>>>>>> low:36kB
>>>>>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB
>>>>>>>>>>>> present:15984kB
>>>>>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB
>>>>>>>>>>>> bounce:0kB
>>>>>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627
>>>>>>>>>>>> 6627
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>>>>>> low:8280kB high:11548kB active_anon:810196kB
>>>>>>>>>>>> inactive_anon:351420kB
>>>>>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB
>>>>>>>>>>>> mlocked:0kB
>>>>>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB
>>>>>>>>>>>> inactive_anon:102572kB
>>>>>>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>>>>>> mlocked:7464kB
>>>>>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB
>>>>>>>>>>>> 0*512kB
>>>>>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB
>>>>>>>>>>>> (UME)
>>>>>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB
>>>>>>>>>>>> 0*1024kB
>>>>>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete
>>>>>>>>>>>> 0,
>>>>>>>>>>>> find
>>>>>>>>>>>> 0/0
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks a lot
>>>>>>>>>>>>>
>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Try this one in addition.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug,
>>>>>>>>>>>>>>>>> but
>>>>>>>>>>>>>>>>> the
>>>>>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition
>>>>>>>>>>>>>>>>> as
>>>>>>>>>>>>>>>>> read
>>>>>>>>>>>>>>>>> only.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime
>>>>>>>>>>>>>>>>> 1
>>>>>>>>>>>>>>>>> 2
>>>>>>>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0
>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec
>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> df
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted
>>>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>>>>>>>> cgroup_root 10240 0 10240 0%
>>>>>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92%
>>>>>>>>>>>>>>>>> /mnt/media
>>>>>>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92%
>>>>>>>>>>>>>>>>> /usr/portage
>>>>>>>>>>>>>>>>> none 3403212 12 3403200 1%
>>>>>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>>>>>> none 3403212 0 3403212 0%
>>>>>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81%
>>>>>>>>>>>>>>>>> /mnt/backup
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>>> NOTICE: Warning: mounting sda2 with
>>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>>>>>> #3
>>>>>>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ?
>>>>>>>>>>>>>>>>> strndup_user+0x54/0x70
>>>>>>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache
>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 2.202460]
>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>>>>>> complete
>>>>>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number
>>>>>>>>>>>>>>>>> 3
>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number
>>>>>>>>>>>>>>>>> 3
>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has
>>>>>>>>>>>>>>>>> no
>>>>>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction
>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem)
>>>>>>>>>>>>>>>>> readonly
>>>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>>>> device
>>>>>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>>>>>> -
>>>>>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data:
>>>>>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device
>>>>>>>>>>>>>>>>> number
>>>>>>>>>>>>>>>>> 4
>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123.
>>>>>>>>>>>>>>>>> Priority:-1
>>>>>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache
>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 7.661681]
>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100
>>>>>>>>>>>>>>>>> measurements
>>>>>>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction
>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache
>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 26.858134]
>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction
>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>>> NOTICE: Warning: mounting md125 with
>>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G
>>>>>>>>>>>>>>>>> B
>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache
>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction
>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>>>>>> in
>>>>>>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-02-13 6:47 ` Dušan Čolić
@ 2017-02-13 12:48 ` Edward Shishkin
2017-02-13 13:12 ` Dušan Čolić
0 siblings, 1 reply; 20+ messages in thread
From: Edward Shishkin @ 2017-02-13 12:48 UTC (permalink / raw)
To: Dušan Čolić; +Cc: reiserfs-devel
Great.
So, carry_on_level() returned ENOMEM, leaving things in inconsistent state.
And for some reasons it happened silently.
Please, check you partition once in a while (weekly or monthly), if
possible.
Thanks,
Edward.
On 02/13/2017 07:47 AM, Dušan Čolić wrote:
> I used this patch on top of reiser4-for-4.9.patch and I have not been
> able to reproduce corruption on OOM that I had before.
>
> I tested with writing to multiple disks and partitions while
> deactivating swap and filling the RAM.
>
> I had loads of errors in logs (none R4 related) but no errors when I
> fsck-ed R4 partitions.
>
> Thanks
>
> Dushan
>
> On Tue, Jan 31, 2017 at 1:14 PM, Edward Shishkin
> <edward.shishkin@gmail.com> wrote:
>> Hi Dushan,
>>
>> Could you please apply this patch and try to reproduce
>> the corruption with swap turned off?
>>
>> Thanks,
>> Edward.
>>
>>
>> On 01/11/2017 12:48 PM, Dušan Čolić wrote:
>>> On Wed, Jan 11, 2017 at 11:37 AM, Edward Shishkin
>>> <edward.shishkin@gmail.com> wrote:
>>>> So what about data corruption?
>>>> Did you encounter it after enabling swap?
>>>>
>>> Nо.
>>>
>>> I just fsck-ed my R4 partitions to check and had no corruptions even
>>> as I had disk full a couple of times on some of them in last weeks.
>>>
>>>
>>>> Edward.
>>>>
>>>>
>>>> On 01/11/2017 11:30 AM, Dušan Čolić wrote:
>>>>> On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>> Could you also try this patch in addition?
>>>>>>
>>>>> This fixed it.
>>>>>
>>>>>
>>>>> Thanks a lot
>>>>>
>>>>> Dushan
>>>>>
>>>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format
>>>>> 4.0.1.
>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid
>>>>> Transaction
>>>>> Model.
>>>>>
>>>>>
>>>>>> Thanks,
>>>>>> Edward.
>>>>>>
>>>>>>
>>>>>> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>>>>>> Still doesn't mount but this time no messages in logs except:
>>>>>>> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format
>>>>>>> 4.0.1.
>>>>>>>
>>>>>>> There is no second message after it that should say: Jan 8 22:20:32
>>>>>>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>>>>>>
>>>>>>>
>>>>>>> krshina3 dusan # mount /mnt/backup
>>>>>>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>>>>>>>
>>>>>>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>>>>>>
>>>>>>>
>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>> /dev/md124 none swap sw
>>>>>>> 0
>>>>>>> 0
>>>>>>> /dev/sda2 / reiser4
>>>>>>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>> noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>
>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>>
>>>>>>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>> Try to reproduce it with this patch. Let me know about results.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Edward.
>>>>>>>>
>>>>>>>>
>>>>>>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>>>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>> A deep dive to the page allocator is needed to find
>>>>>>>>>> out why the warning (not simply regular ENOMEM).
>>>>>>>>>>
>>>>>>>>>> Edward.
>>>>>>>>>>
>>>>>>>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>>>>>>>> no swap activity.
>>>>>>>>> I reproduced it on freshly booted system.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>> wrote:
>>>>>>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>>>>>>
>>>>>>>>>>>>> I spoke prematurely.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>>>>>>> solved
>>>>>>>>>>>>> with 4.8.1 patch
>>>>>>>>>>>>> 2. BUG when mounting dismounted partition - this one is not
>>>>>>>>>>>>> solved
>>>>>>>>>>>>>
>>>>>>>>>>>> When I I get this BUG I do:
>>>>>>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>>>>>>
>>>>>>>>>>>> and everything works OK again.
>>>>>>>>>>>>
>>>>>>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to
>>>>>>>>>>> scripts
>>>>>>>>>>> that I run daily on R4 partitions I had no occurence of this bug
>>>>>>>>>>> and
>>>>>>>>>>> before I had it every day.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>>> When partitions are mounted on boot they mount OK, but when
>>>>>>>>>>>>> system
>>>>>>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk
>>>>>>>>>>>>> format
>>>>>>>>>>>>> 4.0.1.
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount
>>>>>>>>>>>>> Not
>>>>>>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte
>>>>>>>>>>>>> Technology
>>>>>>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000
>>>>>>>>>>>>> ffff88007d0379b0
>>>>>>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000
>>>>>>>>>>>>> ffff88007d037a40
>>>>>>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202
>>>>>>>>>>>>> 0000000000000004
>>>>>>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866
>>>>>>>>>>>>> dirty:1092
>>>>>>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>>>>>>> pagetables:2738
>>>>>>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>>>>>>> inactive_anon:453992kB active_file:756952kB
>>>>>>>>>>>>> inactive_file:3203140kB
>>>>>>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0
>>>>>>>>>>>>> all_unreclaimable?
>>>>>>>>>>>>> no
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB
>>>>>>>>>>>>> low:36kB
>>>>>>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB
>>>>>>>>>>>>> present:15984kB
>>>>>>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB
>>>>>>>>>>>>> bounce:0kB
>>>>>>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627
>>>>>>>>>>>>> 6627
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>>>>>>> low:8280kB high:11548kB active_anon:810196kB
>>>>>>>>>>>>> inactive_anon:351420kB
>>>>>>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB
>>>>>>>>>>>>> mlocked:0kB
>>>>>>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB
>>>>>>>>>>>>> inactive_anon:102572kB
>>>>>>>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>>>>>>> mlocked:7464kB
>>>>>>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB (U)
>>>>>>>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB
>>>>>>>>>>>>> 0*512kB
>>>>>>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB
>>>>>>>>>>>>> (UME)
>>>>>>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB
>>>>>>>>>>>>> 0*1024kB
>>>>>>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete
>>>>>>>>>>>>> 0,
>>>>>>>>>>>>> find
>>>>>>>>>>>>> 0/0
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks a lot
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>> Try this one in addition.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug,
>>>>>>>>>>>>>>>>>> but
>>>>>>>>>>>>>>>>>> the
>>>>>>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition
>>>>>>>>>>>>>>>>>> as
>>>>>>>>>>>>>>>>>> read
>>>>>>>>>>>>>>>>>> only.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime
>>>>>>>>>>>>>>>>>> 1
>>>>>>>>>>>>>>>>>> 2
>>>>>>>>>>>>>>>>>> /dev/md123 none swap sw
>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0
>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec
>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> df
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted
>>>>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>>>>>>>> shm 3403212 1284 3401928 1% /dev/shm
>>>>>>>>>>>>>>>>>> cgroup_root 10240 0 10240 0%
>>>>>>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92%
>>>>>>>>>>>>>>>>>> /mnt/media
>>>>>>>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92%
>>>>>>>>>>>>>>>>>> /usr/portage
>>>>>>>>>>>>>>>>>> none 3403212 12 3403200 1%
>>>>>>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>>>>>>> none 3403212 0 3403212 0%
>>>>>>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81%
>>>>>>>>>>>>>>>>>> /mnt/backup
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>>>> NOTICE: Warning: mounting sda2 with
>>>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>>>>>>> #3
>>>>>>>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ?
>>>>>>>>>>>>>>>>>> strndup_user+0x54/0x70
>>>>>>>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache
>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 2.202460]
>>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>>>>>>> complete
>>>>>>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device number
>>>>>>>>>>>>>>>>>> 3
>>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device number
>>>>>>>>>>>>>>>>>> 3
>>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device has
>>>>>>>>>>>>>>>>>> no
>>>>>>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction
>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem)
>>>>>>>>>>>>>>>>>> readonly
>>>>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>>>>> device
>>>>>>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>>>>>>> -
>>>>>>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only data:
>>>>>>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device
>>>>>>>>>>>>>>>>>> number
>>>>>>>>>>>>>>>>>> 4
>>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123.
>>>>>>>>>>>>>>>>>> Priority:-1
>>>>>>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache
>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 7.661681]
>>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100
>>>>>>>>>>>>>>>>>> measurements
>>>>>>>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction
>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G B
>>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache
>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 26.858134]
>>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction
>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>>>> NOTICE: Warning: mounting md125 with
>>>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G
>>>>>>>>>>>>>>>>>> B
>>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache
>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction
>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>>>>>>> in
>>>>>>>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>>>>>>
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [BUG] on mount with reiser4-for-4.8
2017-02-13 12:48 ` Edward Shishkin
@ 2017-02-13 13:12 ` Dušan Čolić
0 siblings, 0 replies; 20+ messages in thread
From: Dušan Čolić @ 2017-02-13 13:12 UTC (permalink / raw)
To: Edward Shishkin; +Cc: reiserfs-devel
On Mon, Feb 13, 2017 at 1:48 PM, Edward Shishkin
<edward.shishkin@gmail.com> wrote:
> Great.
> So, carry_on_level() returned ENOMEM, leaving things in inconsistent state.
> And for some reasons it happened silently.
Would increasing /proc/sys/vm/min_free_kbytes help in OOM situation?
> Please, check you partition once in a while (weekly or monthly), if
> possible.
>
OFC
Thanks
> Thanks,
> Edward.
>
>
> On 02/13/2017 07:47 AM, Dušan Čolić wrote:
>>
>> I used this patch on top of reiser4-for-4.9.patch and I have not been
>> able to reproduce corruption on OOM that I had before.
>>
>> I tested with writing to multiple disks and partitions while
>> deactivating swap and filling the RAM.
>>
>> I had loads of errors in logs (none R4 related) but no errors when I
>> fsck-ed R4 partitions.
>>
>> Thanks
>>
>> Dushan
>>
>> On Tue, Jan 31, 2017 at 1:14 PM, Edward Shishkin
>> <edward.shishkin@gmail.com> wrote:
>>>
>>> Hi Dushan,
>>>
>>> Could you please apply this patch and try to reproduce
>>> the corruption with swap turned off?
>>>
>>> Thanks,
>>> Edward.
>>>
>>>
>>> On 01/11/2017 12:48 PM, Dušan Čolić wrote:
>>>>
>>>> On Wed, Jan 11, 2017 at 11:37 AM, Edward Shishkin
>>>> <edward.shishkin@gmail.com> wrote:
>>>>>
>>>>> So what about data corruption?
>>>>> Did you encounter it after enabling swap?
>>>>>
>>>> Nо.
>>>>
>>>> I just fsck-ed my R4 partitions to check and had no corruptions even
>>>> as I had disk full a couple of times on some of them in last weeks.
>>>>
>>>>
>>>>> Edward.
>>>>>
>>>>>
>>>>> On 01/11/2017 11:30 AM, Dušan Čolić wrote:
>>>>>>
>>>>>> On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>
>>>>>>> Could you also try this patch in addition?
>>>>>>>
>>>>>> This fixed it.
>>>>>>
>>>>>>
>>>>>> Thanks a lot
>>>>>>
>>>>>> Dushan
>>>>>>
>>>>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format
>>>>>> 4.0.1.
>>>>>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid
>>>>>> Transaction
>>>>>> Model.
>>>>>>
>>>>>>
>>>>>>> Thanks,
>>>>>>> Edward.
>>>>>>>
>>>>>>>
>>>>>>> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>>>>>>>
>>>>>>>> Still doesn't mount but this time no messages in logs except:
>>>>>>>> Jan 8 22:20:45 krshina3 kernel: reiser4: md125: found disk format
>>>>>>>> 4.0.1.
>>>>>>>>
>>>>>>>> There is no second message after it that should say: Jan 8 22:20:32
>>>>>>>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>>>>>>>
>>>>>>>>
>>>>>>>> krshina3 dusan # mount /mnt/backup
>>>>>>>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate
>>>>>>>> memory
>>>>>>>>
>>>>>>>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>>>>>>>
>>>>>>>>
>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime 1 2
>>>>>>>> /dev/md124 none swap sw
>>>>>>>> 0
>>>>>>>> 0
>>>>>>>> /dev/sda2 / reiser4
>>>>>>>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>> noatime,noauto,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>> noatime,users,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>> noatime,onerror=remount-ro,dont_load_bitmap 0 0
>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro 0 0
>>>>>>>>
>>>>>>>> shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
>>>>>>>>
>>>>>>>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>
>>>>>>>>> Try to reproduce it with this patch. Let me know about results.
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Edward.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>>>>>>>
>>>>>>>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>> A deep dive to the page allocator is needed to find
>>>>>>>>>>> out why the warning (not simply regular ENOMEM).
>>>>>>>>>>>
>>>>>>>>>>> Edward.
>>>>>>>>>>>
>>>>>>>>>> This happens without any memory pressure, with 4G of 8G RAM free
>>>>>>>>>> and
>>>>>>>>>> no swap activity.
>>>>>>>>>> I reproduced it on freshly booted system.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@gmail.com>
>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić
>>>>>>>>>>>>>> <dusanc@gmail.com>
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I spoke prematurely.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>>>>>>>> solved
>>>>>>>>>>>>>> with 4.8.1 patch
>>>>>>>>>>>>>> 2. BUG when mounting dismounted partition - this one is not
>>>>>>>>>>>>>> solved
>>>>>>>>>>>>>>
>>>>>>>>>>>>> When I I get this BUG I do:
>>>>>>>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>>>>>>>
>>>>>>>>>>>>> and everything works OK again.
>>>>>>>>>>>>>
>>>>>>>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to
>>>>>>>>>>>> scripts
>>>>>>>>>>>> that I run daily on R4 partitions I had no occurence of this bug
>>>>>>>>>>>> and
>>>>>>>>>>>> before I had it every day.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>>> When partitions are mounted on boot they mount OK, but when
>>>>>>>>>>>>>> system
>>>>>>>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk
>>>>>>>>>>>>>> format
>>>>>>>>>>>>>> 4.0.1.
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation
>>>>>>>>>>>>>> failure:
>>>>>>>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount
>>>>>>>>>>>>>> Not
>>>>>>>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte
>>>>>>>>>>>>>> Technology
>>>>>>>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000400000
>>>>>>>>>>>>>> ffff88007d0379b0
>>>>>>>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000000
>>>>>>>>>>>>>> ffff88007d037a40
>>>>>>>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0000000000000202
>>>>>>>>>>>>>> 0000000000000004
>>>>>>>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff814241c5>]
>>>>>>>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab42a>]
>>>>>>>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811aa483>] ?
>>>>>>>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811ab863>]
>>>>>>>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff810ca0d8>] ?
>>>>>>>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc28d>]
>>>>>>>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff811fc189>]
>>>>>>>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812a060f>]
>>>>>>>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812ac8ee>]
>>>>>>>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81304a55>]
>>>>>>>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81229aa4>] ?
>>>>>>>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4f3a>]
>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209b6f>]
>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812c4de0>]
>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81209dfe>]
>>>>>>>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81231a96>]
>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81233af2>]
>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337f1>] ?
>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff812337da>] ?
>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81234e46>]
>>>>>>>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: [<ffffffff81a5765b>]
>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866
>>>>>>>>>>>>>> dirty:1092
>>>>>>>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>>>>>>>> pagetables:2738
>>>>>>>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>>>>>>>> inactive_anon:453992kB active_file:756952kB
>>>>>>>>>>>>>> inactive_file:3203140kB
>>>>>>>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0
>>>>>>>>>>>>>> all_unreclaimable?
>>>>>>>>>>>>>> no
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB
>>>>>>>>>>>>>> low:36kB
>>>>>>>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB
>>>>>>>>>>>>>> present:15984kB
>>>>>>>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB
>>>>>>>>>>>>>> bounce:0kB
>>>>>>>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627
>>>>>>>>>>>>>> 6627
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>>>>>>>> low:8280kB high:11548kB active_anon:810196kB
>>>>>>>>>>>>>> inactive_anon:351420kB
>>>>>>>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB
>>>>>>>>>>>>>> mlocked:0kB
>>>>>>>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435
>>>>>>>>>>>>>> 3435
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB
>>>>>>>>>>>>>> min:5392kB
>>>>>>>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB
>>>>>>>>>>>>>> inactive_anon:102572kB
>>>>>>>>>>>>>> active_file:584668kB inactive_file:1509216kB
>>>>>>>>>>>>>> unevictable:7464kB
>>>>>>>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>>>>>>>> mlocked:7464kB
>>>>>>>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 1*16kB
>>>>>>>>>>>>>> (U)
>>>>>>>>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>>>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15896kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB
>>>>>>>>>>>>>> (ME)
>>>>>>>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB
>>>>>>>>>>>>>> 0*512kB
>>>>>>>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB
>>>>>>>>>>>>>> (UME)
>>>>>>>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB
>>>>>>>>>>>>>> 0*1024kB
>>>>>>>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0,
>>>>>>>>>>>>>> delete
>>>>>>>>>>>>>> 0,
>>>>>>>>>>>>>> find
>>>>>>>>>>>>>> 0/0
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap = 9775420kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thanks a lot
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Try this one in addition.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>>>>>>>> <edward.shishkin@gmail.com> wrote:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug,
>>>>>>>>>>>>>>>>>>> but
>>>>>>>>>>>>>>>>>>> the
>>>>>>>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition
>>>>>>>>>>>>>>>>>>> as
>>>>>>>>>>>>>>>>>>> read
>>>>>>>>>>>>>>>>>>> only.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> /dev/sda1 /boot ext2 noauto,noatime
>>>>>>>>>>>>>>>>>>> 1
>>>>>>>>>>>>>>>>>>> 2
>>>>>>>>>>>>>>>>>>> /dev/md123 none swap
>>>>>>>>>>>>>>>>>>> sw
>>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>>> /dev/sda2 / reiser4
>>>>>>>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>>>>>>>> /dev/md125 /mnt/backup reiser4
>>>>>>>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>>>> /dev/md126 /mnt/media reiser4
>>>>>>>>>>>>>>>>>>> noatime,users,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>>>> /dev/md127 /usr/portage reiser4
>>>>>>>>>>>>>>>>>>> noatime,onerror=remount-ro 0 0
>>>>>>>>>>>>>>>>>>> /dev/dvdrom /mnt/cdrom auto noauto,ro
>>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>>> shm /dev/shm tmpfs
>>>>>>>>>>>>>>>>>>> nodev,nosuid,noexec
>>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>>>>>>>> 104320 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>>>>>>>> 594304 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>>>>>>>> 9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>>>>>>>> 68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>>>>>>>> 403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>>>>>>>> 6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> df
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Filesystem 1K-blocks Used Available Use% Mounted
>>>>>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>>>>>> /dev/sda2 37017728 30413152 6604576 83% /
>>>>>>>>>>>>>>>>>>> tmpfs 680644 1012 679632 1% /run
>>>>>>>>>>>>>>>>>>> dev 10240 0 10240 0% /dev
>>>>>>>>>>>>>>>>>>> shm 3403212 1284 3401928 1%
>>>>>>>>>>>>>>>>>>> /dev/shm
>>>>>>>>>>>>>>>>>>> cgroup_root 10240 0 10240 0%
>>>>>>>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>>>>>>>> /dev/md126 383034100 350741596 32292504 92%
>>>>>>>>>>>>>>>>>>> /mnt/media
>>>>>>>>>>>>>>>>>>> /dev/md127 6113484 5605344 508140 92%
>>>>>>>>>>>>>>>>>>> /usr/portage
>>>>>>>>>>>>>>>>>>> none 3403212 12 3403200 1%
>>>>>>>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>>>>>>>> none 3403212 0 3403212 0%
>>>>>>>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>>>>>>>> /dev/md125 64959612 52568760 12390852 81%
>>>>>>>>>>>>>>>>>>> /mnt/backup
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> [ 2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>>>>> NOTICE: Warning: mounting sda2
>>>>>>>>>>>>>>>>>>> with
>>>>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>>>>> [ 2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>>> [ 2.062410]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [ 2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>>>>>>>> [ 2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>>>>>>>> [ 2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>>>>>>>> #3
>>>>>>>>>>>>>>>>>>> [ 2.068857] Hardware name: Gigabyte Technology Co.,
>>>>>>>>>>>>>>>>>>> Ltd.
>>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>>> [ 2.070566] ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>>> [ 2.072316] ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>>>>>>>> [ 2.074078] ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>>> [ 2.075861] Call Trace:
>>>>>>>>>>>>>>>>>>> [ 2.077616] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>>> [ 2.079402] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>>> [ 2.081216] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>>> [ 2.083049] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>>> [ 2.084876] [<ffffffff811ffef4>]
>>>>>>>>>>>>>>>>>>> kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>>> [ 2.086717] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [ 2.088594] [<ffffffff811ff601>]
>>>>>>>>>>>>>>>>>>> __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>>> [ 2.090471] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [ 2.092356] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 2.094224] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 2.096073] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>>> [ 2.097930] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 2.099785] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 2.101654] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 2.103528] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 2.105397] [<ffffffff811fe944>] ?
>>>>>>>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>>>>>>>> [ 2.107295] [<ffffffff811c4624>] ?
>>>>>>>>>>>>>>>>>>> strndup_user+0x54/0x70
>>>>>>>>>>>>>>>>>>> [ 2.109187] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 2.111089] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>>>> [ 2.113023] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>>>> [ 2.114955] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>>>> [ 2.116887] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>>>> [ 2.118811] [<ffffffff81a50e9e>]
>>>>>>>>>>>>>>>>>>> kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>>>> [ 2.120713] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>>>> [ 2.122618] [<ffffffff81a50e90>] ?
>>>>>>>>>>>>>>>>>>> rest_init+0x80/0x80
>>>>>>>>>>>>>>>>>>> [ 2.124522] Object at ffff8801d0fc0800, in cache
>>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>>> [ 2.126453] Allocated:
>>>>>>>>>>>>>>>>>>> [ 2.128364] PID = 1
>>>>>>>>>>>>>>>>>>> [ 2.130261] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [ 2.132219] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>>> [ 2.134206] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>>> [ 2.136188] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>>> [ 2.138174] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 2.140144] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 2.142096] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 2.144055] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 2.146028] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 2.148016] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 2.150014] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 2.152026] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>>>> [ 2.154055] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>>>> [ 2.156066] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>>>> [ 2.158074] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>>>> [ 2.160079] [<ffffffff81a50e9e>]
>>>>>>>>>>>>>>>>>>> kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>>>> [ 2.162020] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>>>> [ 2.163918] Freed:
>>>>>>>>>>>>>>>>>>> [ 2.165760] PID = 1
>>>>>>>>>>>>>>>>>>> [ 2.167562] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [ 2.169376] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>>> [ 2.171150] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>>> [ 2.172895] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>>> [ 2.174616] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 2.176290] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 2.177962] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 2.179633] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 2.181273] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 2.182910] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 2.184541] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 2.186171] [<ffffffff820a8759>]
>>>>>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>>>>>> [ 2.187804] [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>>>>>> [ 2.189430] [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>>>>>> [ 2.191056] [<ffffffff820a84ec>]
>>>>>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>>>>>> [ 2.192683] [<ffffffff81a50e9e>]
>>>>>>>>>>>>>>>>>>> kernel_init+0xe/0x120
>>>>>>>>>>>>>>>>>>> [ 2.194296] [<ffffffff81a5780f>]
>>>>>>>>>>>>>>>>>>> ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>>>>>> [ 2.195902] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>>> [ 2.197517] ffff8801d0fc0700: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>>> [ 2.199178] ffff8801d0fc0780: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>>> [ 2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 2.202460]
>>>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>>>> [ 2.204114] ffff8801d0fc0880: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 2.205804] ffff8801d0fc0900: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 2.207471]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [ 2.209162] Disabling lock debugging due to kernel
>>>>>>>>>>>>>>>>>>> taint
>>>>>>>>>>>>>>>>>>> [ 2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>>>>>>>> complete
>>>>>>>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>>>>>>>> [ 2.212696] usb 1-1.4: new high-speed USB device
>>>>>>>>>>>>>>>>>>> number
>>>>>>>>>>>>>>>>>>> 3
>>>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>>>> [ 2.214507] usb 2-1.5: new full-speed USB device
>>>>>>>>>>>>>>>>>>> number
>>>>>>>>>>>>>>>>>>> 3
>>>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>>>> [ 2.234910] hid-generic 0003:051D:0002.0002: device
>>>>>>>>>>>>>>>>>>> has
>>>>>>>>>>>>>>>>>>> no
>>>>>>>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>>>>>>>> [ 2.312037] reiser4: sda2: using Hybrid Transaction
>>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>>> [ 2.313880] VFS: Mounted root (reiser4 filesystem)
>>>>>>>>>>>>>>>>>>> readonly
>>>>>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>>>>>> device
>>>>>>>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>>>>>>>> [ 2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>>>>>>>> -
>>>>>>>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>>>>>>>> [ 2.317823] Write protecting the kernel read-only
>>>>>>>>>>>>>>>>>>> data:
>>>>>>>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>>>>>>>> [ 2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>>>>>>>> [ 2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>>>>>>>> [ 2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>>>>>>>> [ 2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>>>>>>>> [ 2.624398] usb 1-1.4.2: new full-speed USB device
>>>>>>>>>>>>>>>>>>> number
>>>>>>>>>>>>>>>>>>> 4
>>>>>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>>>>>> [ 5.221431] random: crng init done
>>>>>>>>>>>>>>>>>>> [ 7.579186] Adding 594300k swap on /dev/md123.
>>>>>>>>>>>>>>>>>>> Priority:-1
>>>>>>>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>>>>>>>> [ 7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>>> [ 7.661541]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [ 7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>>>>>>>> [ 7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>>>>> [ 7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G
>>>>>>>>>>>>>>>>>>> B
>>>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>>>> [ 7.661552] Hardware name: Gigabyte Technology Co.,
>>>>>>>>>>>>>>>>>>> Ltd.
>>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>>> [ 7.661553] ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>>> [ 7.661556] ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>>>>> [ 7.661559] ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>>> [ 7.661561] Call Trace:
>>>>>>>>>>>>>>>>>>> [ 7.661565] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>>> [ 7.661569] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>>> [ 7.661571] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>>> [ 7.661574] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>>> [ 7.661577] [<ffffffff811ffef4>]
>>>>>>>>>>>>>>>>>>> kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>>> [ 7.661580] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [ 7.661582] [<ffffffff811ff601>]
>>>>>>>>>>>>>>>>>>> __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>>> [ 7.661585] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [ 7.661588] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 7.661591] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 7.661593] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>>> [ 7.661594] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 7.661597] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 7.661600] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 7.661602] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 7.661604] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>>>>> [ 7.661606] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>>>> [ 7.661608] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 7.661613] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [ 7.661614] Object at ffff8801cfaf1300, in cache
>>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>>> [ 7.661615] Allocated:
>>>>>>>>>>>>>>>>>>> [ 7.661615] PID = 1662
>>>>>>>>>>>>>>>>>>> [ 7.661616] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [ 7.661620] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>>> [ 7.661622] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>>> [ 7.661625] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>>> [ 7.661628] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 7.661630] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 7.661632] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 7.661634] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 7.661637] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 7.661639] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 7.661641] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 7.661643] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [ 7.661646] Freed:
>>>>>>>>>>>>>>>>>>> [ 7.661646] PID = 1662
>>>>>>>>>>>>>>>>>>> [ 7.661647] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [ 7.661649] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>>> [ 7.661652] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>>> [ 7.661654] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>>> [ 7.661657] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 7.661659] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 7.661662] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 7.661664] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 7.661666] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 7.661668] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 7.661670] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 7.661672] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [ 7.661675] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>>> [ 7.661677] ffff8801cfaf1200: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 7.661679] ffff8801cfaf1280: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>>> [ 7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 7.661681]
>>>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>>>> [ 7.661683] ffff8801cfaf1380: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 7.661684] ffff8801cfaf1400: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 7.661685]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [ 10.972840] rcu-perf:rcu_perf_writer 0 has 100
>>>>>>>>>>>>>>>>>>> measurements
>>>>>>>>>>>>>>>>>>> [ 11.016722] rcu-perf:Test complete
>>>>>>>>>>>>>>>>>>> [ 26.835385] reiser4: md126: using Hybrid Transaction
>>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>>> [ 26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>>> [ 26.857995]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [ 26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>>>>>>>> [ 26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>>>>>> [ 26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G
>>>>>>>>>>>>>>>>>>> B
>>>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>>>> [ 26.858007] Hardware name: Gigabyte Technology Co.,
>>>>>>>>>>>>>>>>>>> Ltd.
>>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>>> [ 26.858009] ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>>> [ 26.858012] ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>>>>>> [ 26.858014] ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>>> [ 26.858017] Call Trace:
>>>>>>>>>>>>>>>>>>> [ 26.858020] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>>> [ 26.858024] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>>> [ 26.858027] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>>> [ 26.858029] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>>> [ 26.858032] [<ffffffff811ffef4>]
>>>>>>>>>>>>>>>>>>> kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>>> [ 26.858035] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [ 26.858038] [<ffffffff811ff601>]
>>>>>>>>>>>>>>>>>>> __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>>> [ 26.858040] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [ 26.858043] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 26.858046] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 26.858048] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>>> [ 26.858050] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 26.858052] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 26.858055] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 26.858057] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 26.858059] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>>>> [ 26.858061] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 26.858065] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [ 26.858067] Object at ffff8801cbf56080, in cache
>>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>>> [ 26.858067] Allocated:
>>>>>>>>>>>>>>>>>>> [ 26.858068] PID = 1662
>>>>>>>>>>>>>>>>>>> [ 26.858069] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [ 26.858072] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>>> [ 26.858075] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>>> [ 26.858077] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>>> [ 26.858080] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 26.858082] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 26.858085] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 26.858087] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 26.858089] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 26.858091] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 26.858093] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 26.858095] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [ 26.858098] Freed:
>>>>>>>>>>>>>>>>>>> [ 26.858099] PID = 1662
>>>>>>>>>>>>>>>>>>> [ 26.858099] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [ 26.858102] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>>> [ 26.858104] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>>> [ 26.858107] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>>> [ 26.858109] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [ 26.858111] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [ 26.858114] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [ 26.858116] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [ 26.858118] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [ 26.858120] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [ 26.858122] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [ 26.858124] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [ 26.858128] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>>> [ 26.858130] ffff8801cbf55f80: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>>> [ 26.858131] ffff8801cbf56000: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>>> [ 26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 26.858134]
>>>>>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>>>>>> [ 26.858135] ffff8801cbf56100: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 26.858137] ffff8801cbf56180: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [ 26.858137]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [ 27.199941] reiser4: md127: using Hybrid Transaction
>>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>>>>> NOTICE: Warning: mounting md125
>>>>>>>>>>>>>>>>>>> with
>>>>>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G
>>>>>>>>>>>>>>>>>>> B
>>>>>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co.,
>>>>>>>>>>>>>>>>>>> Ltd.
>>>>>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>>>>>> [33530.203577] ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>>>>>> [33530.203580] ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>>>>>>>> [33530.203582] ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>>>>>>>> [33530.203588] [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>>>>>> [33530.203592] [<ffffffff811ff90c>]
>>>>>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>>>>>> [33530.203595] [<ffffffff811ffb79>]
>>>>>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>>>>>> [33530.203597] [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>>>>>> [33530.203600] [<ffffffff811ffef4>]
>>>>>>>>>>>>>>>>>>> kasan_report+0x34/0x40
>>>>>>>>>>>>>>>>>>> [33530.203603] [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [33530.203605] [<ffffffff811ff601>]
>>>>>>>>>>>>>>>>>>> __asan_load4+0x61/0x80
>>>>>>>>>>>>>>>>>>> [33530.203608] [<ffffffff81304b11>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>>>>>> [33530.203610] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [33530.203613] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [33530.203615] [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>>>>>> [33530.203617] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [33530.203620] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [33530.203622] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [33530.203625] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [33530.203627] [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>>>>>> [33530.203629] [<ffffffff812337da>] ?
>>>>>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>>>>>> [33530.203631] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [33530.203635] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache
>>>>>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>>>>>>>> [33530.203639] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [33530.203642] [<ffffffff811fe802>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>>>>>> [33530.203645] [<ffffffff811ff018>]
>>>>>>>>>>>>>>>>>>> kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>>>>>> [33530.203647] [<ffffffff813048bc>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>>>>>> [33530.203650] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [33530.203652] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [33530.203654] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [33530.203656] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [33530.203659] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [33530.203661] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [33530.203663] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [33530.203665] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>>>>>>>> [33530.203669] [<ffffffff8109f536>]
>>>>>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>>>>>> [33530.203671] [<ffffffff811feed7>]
>>>>>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>>>>>> [33530.203674] [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>>>>>> [33530.203676] [<ffffffff81304b09>]
>>>>>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>>>>>> [33530.203679] [<ffffffff812c4f3a>]
>>>>>>>>>>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>>>>>>>>>>> [33530.203681] [<ffffffff81209b6f>]
>>>>>>>>>>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>>>>>> [33530.203683] [<ffffffff812c4de0>]
>>>>>>>>>>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>>>>>> [33530.203685] [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>>>>>> [33530.203688] [<ffffffff81231a96>]
>>>>>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>>>>>> [33530.203690] [<ffffffff81233af2>]
>>>>>>>>>>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>>>>>> [33530.203692] [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>>>>>> [33530.203694] [<ffffffff81a5761b>]
>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>>>>>>>> [33530.203699] ffff88013164d700: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>>>>>> [33530.203701] ffff88013164d780: fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [33530.203703] ^
>>>>>>>>>>>>>>>>>>> [33530.203705] ffff88013164d880: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [33530.203707] ffff88013164d900: fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction
>>>>>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>>>>>>>> in
>>>>>>>>>>>>>>>>>>> the body of a message to majordomo@vger.kernel.org
>>>>>>>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>
^ permalink raw reply [flat|nested] 20+ messages in thread
end of thread, other threads:[~2017-02-13 13:12 UTC | newest]
Thread overview: 20+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-12-17 21:08 [BUG] on mount with reiser4-for-4.8 Dušan Čolić
2016-12-17 21:45 ` Edward Shishkin
2016-12-18 12:17 ` Dušan Čolić
2016-12-18 12:44 ` Edward Shishkin
2016-12-18 13:46 ` Dušan Čolić
2016-12-24 8:48 ` Dušan Čolić
2016-12-25 15:32 ` Dušan Čolić
2017-01-06 15:37 ` Dušan Čolić
2017-01-07 22:51 ` Edward Shishkin
2017-01-08 7:25 ` Dušan Čolić
2017-01-08 13:09 ` Edward Shishkin
2017-01-08 21:26 ` Dušan Čolić
2017-01-11 10:10 ` Edward Shishkin
2017-01-11 10:30 ` Dušan Čolić
2017-01-11 10:37 ` Edward Shishkin
2017-01-11 11:48 ` Dušan Čolić
2017-01-31 12:14 ` Edward Shishkin
2017-02-13 6:47 ` Dušan Čolić
2017-02-13 12:48 ` Edward Shishkin
2017-02-13 13:12 ` Dušan Čolić
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