From: Edward Shishkin <edward.shishkin@gmail.com>
To: "Dušan Čolić" <dusanc@gmail.com>
Cc: reiserfs-devel <reiserfs-devel@vger.kernel.org>
Subject: Re: [BUG] on mount with reiser4-for-4.8
Date: Tue, 31 Jan 2017 13:14:49 +0100 [thread overview]
Message-ID: <b4d4327d-b915-a369-dfa6-ccbfc042edc5@gmail.com> (raw)
In-Reply-To: <CADW=+3=ZXtHG7chEOn7oN3-Ta+ZWUYEMszDTX7k4TX-9zNHvaA@mail.gmail.com>
[-- 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
next prev parent reply other threads:[~2017-01-31 12:14 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
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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