* Re: kernel BUG at fs/btrfs/ctree.h:2456
[not found] <538FA4E2.4050108@gmail.com>
@ 2014-06-05 6:28 ` Konstantinos Skarlatos
2014-06-05 7:05 ` Liu Bo
0 siblings, 1 reply; 3+ messages in thread
From: Konstantinos Skarlatos @ 2014-06-05 6:28 UTC (permalink / raw)
To: linux-btrfs
On 5/6/2014 1:59 πμ, Konstantinos Skarlatos wrote:
> Hi, I get this after doing a few runs of rsync on my btrfs filesystem.
> kernel: 3.15.0-rc8
> filesystem has 6x2tb disks, data is raid 0, fs was created with skinny
> metadata, mount options are noatime, compress-force=zlib. No quota or
> defrag or any of the new features is being used. attached full dmesg
> capture via netconsole.
adding some more info
$ btrfs fi df /storage/btrfs
Data, single: total=8.89TiB, used=8.43TiB
System, RAID1: total=32.00MiB, used=992.00KiB
Metadata, RAID1: total=69.00GiB, used=66.75GiB
unknown, single: total=512.00MiB, used=112.00KiB
$ btrfs fi show
Label: none uuid: bde3c349-9e08-45bb-8517-b9a6dda81e88
Total devices 6 FS bytes used 8.50TiB
devid 1 size 3.64TiB used 3.02TiB path /dev/sdf
devid 2 size 1.82TiB used 1.20TiB path /dev/sda
devid 3 size 1.82TiB used 1.20TiB path /dev/sdb
devid 4 size 1.82TiB used 1.20TiB path /dev/sdc
devid 5 size 1.82TiB used 1.20TiB path /dev/sdd
devid 6 size 1.82TiB used 1.20TiB path /dev/sdh
Btrfs v3.14.2-dirty
btrfs su li /storage/btrfs -q | grep "parent_uuid -" |wc -l
22
btrfs su li /storage/btrfs -q | grep -v "parent_uuid -" |wc -l
5855
So the filesystem has 22 subvolumes and 5855 snapshots.
No vm images or databases are stored here, everything comes and goes
with rsync, as this is a backup server.
>
> [ 855.493495] BTRFS info (device sdc): force zlib compression
> [ 855.498427] BTRFS info (device sdc): disk space caching is enabled
> [ 855.503348] BTRFS: has skinny extents
> [27199.947244] ------------[ cut here ]------------
> [27199.952216] kernel BUG at fs/btrfs/ctree.h:2456!
> [27199.957188] invalid opcode: 0000 [#1] PREEMPT SMP
> [27199.962184] Modules linked in: netconsole radeon kvm_amd
> snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode evdev
> snd_hda_intel snd_hda_controller mac_hid edac_core snd_hda_codec
> snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd serio_raw
> i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core soundcore mii
> wmi shpchp button acpi_cpufreq processor ext4 crc16 mbcache jbd2
> crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif crct10dif_common
> ata_generic pata_acpi atkbd libps2 pata_jmicron ahci libahci ohci_pci
> libata ohci_hcd ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
> i8042 serio
> [27199.990017] CPU: 1 PID: 7953 Comm: rsync Not tainted
> 3.15.0-rc8-gfad01e8 #1
> [27199.995748] Hardware name: Gigabyte Technology Co., Ltd.
> GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
> [27200.001584] task: ffff880202928000 ti: ffff8800129e0000 task.ti:
> ffff8800129e0000
> [27200.007439] RIP: 0010:[<ffffffffa0594017>] [<ffffffffa0594017>]
> lookup_inline_extent_backref+0x407/0x5d0 [btrfs]
> [27200.013445] RSP: 0018:ffff8800129e3a90 EFLAGS: 00010283
> [27200.019397] RAX: 0000000000000038 RBX: ffff88002ef9af00 RCX:
> ffff8800129e3a40
> [27200.025312] RDX: ffff880000000000 RSI: 00000000000036b7 RDI:
> ffff88002ef9af00
> [27200.031119] RBP: ffff8800129e3b28 R08: 0000000000004000 R09:
> ffff8800129e3a50
> [27200.036801] R10: 0000000000000000 R11: 0000000000000003 R12:
> 00000000000000b8
> [27200.042377] R13: 0000000000000038 R14: 00000000000036b7 R15:
> 000000000000399c
> [27200.047899] FS: 00007f543bbec700(0000) GS:ffff88020fc40000(0000)
> knlGS:0000000000000000
> [27200.053379] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [27200.058751] CR2: 00000000015b6fd8 CR3: 000000018a0da000 CR4:
> 00000000000007e0
> [27200.064060] Stack:
> [27200.069215] 00000c14cecab000 ffff88019abf1480 0000000000000327
> ffff8800129e3b68
> [27200.074437] 000000000000399c 00000000000000b8 ffff88002ef9af00
> 0000000d000000b8
> [27200.079585] ffff8800ce8fc800 b000ffffa0594e27 00a800000c14ceca
> 0000000000000020
> [27200.084647] Call Trace:
> [27200.089554] [<ffffffffa0595265>]
> insert_inline_extent_backref+0x55/0xe0 [btrfs]
> [27200.094467] [<ffffffffa0595386>] __btrfs_inc_extent_ref+0x96/0x200
> [btrfs]
> [27200.099290] [<ffffffffa059c0f9>]
> __btrfs_run_delayed_refs+0x819/0x1240 [btrfs]
> [27200.104035] [<ffffffffa058979d>] ?
> btrfs_put_tree_mod_seq+0x10d/0x150 [btrfs]
> [27200.108676] [<ffffffffa05a091b>]
> btrfs_run_delayed_refs.part.52+0x7b/0x260 [btrfs]
> [27200.113241] [<ffffffffa05a0b17>] btrfs_run_delayed_refs+0x17/0x20
> [btrfs]
> [27200.117675] [<ffffffffa05b1be3>]
> __btrfs_end_transaction+0x243/0x380 [btrfs]
> [27200.122031] [<ffffffffa05b1d30>] btrfs_end_transaction+0x10/0x20
> [btrfs]
> [27200.126275] [<ffffffffa05bb31e>] btrfs_truncate+0x23e/0x330 [btrfs]
> [27200.130452] [<ffffffffa05bbe48>] btrfs_setattr+0x228/0x2e0 [btrfs]
> [27200.134549] [<ffffffff811c6781>] notify_change+0x221/0x380
> [27200.138641] [<ffffffff811a9006>] do_truncate+0x66/0x90
> [27200.142715] [<ffffffff811ad159>] ? __sb_start_write+0x49/0xf0
> [27200.146795] [<ffffffff811a937b>]
> do_sys_ftruncate.constprop.10+0x10b/0x160
> [27200.150927] [<ffffffff811a940e>] SyS_ftruncate+0xe/0x10
> [27200.155104] [<ffffffff814f56a9>] system_call_fastpath+0x16/0x1b
> [27200.159297] Code: 48 39 45 10 74 74 0f 87 28 01 00 00 41 81 fd b6
> 00 00 00 74 1f 41 81 fd b0 00 00 00 74 16 41 81 fd b8 00 00 00 0f 84
> 69 01 00 00 <0f> 0b 0f 1f 80 00 00 00 00 b8 09 00 00 00 49 01 c6 4d 39
> f7 0f
> [27200.168637] RIP [<ffffffffa0594017>]
> lookup_inline_extent_backref+0x407/0x5d0 [btrfs]
> [27200.173160] RSP <ffff8800129e3a90>
> [27200.194497] ---[ end trace e900836ae0ecd5f8 ]---
> [27200.198957] note: rsync[7953] exited with preempt_count 1
> [27228.287568] BUG: soft lockup - CPU#0 stuck for 23s!
> [kworker/u16:11:7840]
> [27228.288734] Modules linked in: netconsole radeon kvm_amd
> snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode evdev
> snd_hda_intel snd_hda_controller mac_hid edac_core snd_hda_codec
> snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd serio_raw
> i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core soundcore mii
> wmi shpchp button acpi_cpufreq processor ext4 crc16 mbcache jbd2
> crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif crct10dif_common
> ata_generic pata_acpi atkbd libps2 pata_jmicron ahci libahci ohci_pci
> libata ohci_hcd ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
> i8042 serio
> [27228.294863] CPU: 0 PID: 7840 Comm: kworker/u16:11 Tainted: G
> D 3.15.0-rc8-gfad01e8 #1
> [27228.296032] Hardware name: Gigabyte Technology Co., Ltd.
> GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
> [27228.297221] Workqueue: btrfs-endio-write normal_work_helper [btrfs]
> [27228.298385] task: ffff880204ec9e90 ti: ffff8800335b8000 task.ti:
> ffff8800335b8000
> [27228.299540] RIP: 0010:[<ffffffff8128f993>] [<ffffffff8128f993>]
> __write_lock_failed+0x13/0x20
> [27228.300703] RSP: 0018:ffff8800335bb918 EFLAGS: 00000287
> [27228.301842] RAX: 0000000000000000 RBX: ffff8800335bb9b0 RCX:
> 0000000000000001
> [27228.302984] RDX: 0000000000000000 RSI: ffff88008aa46280 RDI:
> ffff88008aa462f0
> [27228.304125] RBP: ffff8800335bb918 R08: 0000000000000001 R09:
> ffff880180d30500
> [27228.304256] BUG: soft lockup - CPU#1 stuck for 23s! [mkdir:7979]
> [27228.304277] Modules linked in: netconsole radeon kvm_amd
> snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode evdev
> snd_hda_intel snd_hda_controller mac_hid edac_core snd_hda_codec
> snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd serio_raw
> i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core soundcore mii
> wmi shpchp button acpi_cpufreq processor ext4 crc16 mbcache jbd2
> crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif crct10dif_common
> ata_generic pata_acpi atkbd libps2 pata_jmicron ahci libahci ohci_pci
> libata ohci_hcd ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
> i8042 serio
> [27228.304279] CPU: 1 PID: 7979 Comm: mkdir Tainted: G D
> 3.15.0-rc8-gfad01e8 #1
> [27228.304280] Hardware name: Gigabyte Technology Co., Ltd.
> GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
> [27228.304281] task: ffff88020086b2f0 ti: ffff8800055e4000 task.ti:
> ffff8800055e4000
> [27228.304286] RIP: 0010:[<ffffffff8128f993>] [<ffffffff8128f993>]
> __write_lock_failed+0x13/0x20
> [27228.304287] RSP: 0018:ffff8800055e7a38 EFLAGS: 00000287
> [27228.304287] RAX: 0000000000000000 RBX: ffff8800055e7ad0 RCX:
> 0000000000000001
> [27228.304288] RDX: 0000000000000000 RSI: ffff88002ef9af00 RDI:
> ffff88002ef9af70
> [27228.304288] RBP: ffff8800055e7a38 R08: 0000000000000001 R09:
> ffff880145df9a00
> [27228.304289] R10: ffff880000000000 R11: 0000000000000001 R12:
> ffffffffa05ab0f6
> [27228.304289] R13: ffff8800055e79c8 R14: 0000000000000001 R15:
> 0000000000016085
> [27228.304290] FS: 00007f5a38a33700(0000) GS:ffff88020fc40000(0000)
> knlGS:0000000000000000
> [27228.304291] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [27228.304291] CR2: 0000000001c7f9b0 CR3: 000000019b669000 CR4:
> 00000000000007e0
> [27228.304292] Stack:
> [27228.304293] ffff8800055e7a48 ffffffff814ecdff ffff8800055e7a68
> ffffffffa05e7f3e
> [27228.304294] ffff880107b20990 0000000000000000 ffff8800055e7b00
> ffffffffa058e0f0
> [27228.304295] ffffea0006209c40 ffff8800055e7aa8 ffffea0006209c40
> 00000008cb2206d8
> [27228.304295] Call Trace:
> [27228.304299] [<ffffffff814ecdff>] _raw_write_lock+0x1f/0x30
> [27228.304316] [<ffffffffa05e7f3e>]
> btrfs_try_tree_write_lock+0x2e/0x80 [btrfs]
> [27228.304322] [<ffffffffa058e0f0>] btrfs_search_slot+0x480/0xa50
> [btrfs]
> [27228.304327] [<ffffffffa0593cd5>]
> lookup_inline_extent_backref+0xc5/0x5d0 [btrfs]
> [27228.304332] [<ffffffffa0595265>]
> insert_inline_extent_backref+0x55/0xe0 [btrfs]
> [27228.304337] [<ffffffffa0595386>] __btrfs_inc_extent_ref+0x96/0x200
> [btrfs]
> [27228.304344] [<ffffffffa05f79a1>] ? find_ref_head+0x61/0x80 [btrfs]
> [27228.304350] [<ffffffffa059c0f9>]
> __btrfs_run_delayed_refs+0x819/0x1240 [btrfs]
> [27228.304357] [<ffffffffa06029c9>] ?
> __btrfs_release_delayed_node+0xc9/0x200 [btrfs]
> [27228.304361] [<ffffffffa059202b>] ? block_rsv_add_bytes+0x4b/0x60
> [btrfs]
> [27228.304366] [<ffffffffa058979d>] ?
> btrfs_put_tree_mod_seq+0x10d/0x150 [btrfs]
> [27228.304372] [<ffffffffa05a091b>]
> btrfs_run_delayed_refs.part.52+0x7b/0x260 [btrfs]
> [27228.304377] [<ffffffffa05a0b17>] btrfs_run_delayed_refs+0x17/0x20
> [btrfs]
> [27228.304384] [<ffffffffa05b1be3>]
> __btrfs_end_transaction+0x243/0x380 [btrfs]
> [27228.304390] [<ffffffffa05b1d30>] btrfs_end_transaction+0x10/0x20
> [btrfs]
> [27228.304397] [<ffffffffa05bf2d2>] btrfs_mkdir+0x72/0x1e0 [btrfs]
> [27228.304399] [<ffffffff811b6b41>] vfs_mkdir+0xa1/0x100
> [27228.304401] [<ffffffff811bb1aa>] SyS_mkdirat+0xaa/0xe0
> [27228.304403] [<ffffffff811bb1f9>] SyS_mkdir+0x19/0x20
> [27228.304405] [<ffffffff814f56a9>] system_call_fastpath+0x16/0x1b
> [27228.304415] Code: c3 b8 f2 ff ff ff 66 66 90 c3 90 90 90 90 90 90
> 90 90 90 90 90 90 90 90 55 48 89 e5 f0 81 07 00 00 10 00 f3 90 81 3f
> 00 00 10 00 <75> f6 f0 81 2f 00 00 10 00 75 e6 5d c3 55 48 89 e5 f0 ff
> 07 f3
> [27228.320945] BUG: soft lockup - CPU#2 stuck for 23s!
> [kworker/u16:0:7734]
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kernel BUG at fs/btrfs/ctree.h:2456
2014-06-05 6:28 ` kernel BUG at fs/btrfs/ctree.h:2456 Konstantinos Skarlatos
@ 2014-06-05 7:05 ` Liu Bo
2014-06-05 13:16 ` Konstantinos Skarlatos
0 siblings, 1 reply; 3+ messages in thread
From: Liu Bo @ 2014-06-05 7:05 UTC (permalink / raw)
To: Konstantinos Skarlatos; +Cc: linux-btrfs
Hi, Konstantinos
On Thu, Jun 05, 2014 at 09:28:16AM +0300, Konstantinos Skarlatos wrote:
> On 5/6/2014 1:59 πμ, Konstantinos Skarlatos wrote:
> >Hi, I get this after doing a few runs of rsync on my btrfs filesystem.
> >kernel: 3.15.0-rc8
> >filesystem has 6x2tb disks, data is raid 0, fs was created with
> >skinny metadata, mount options are noatime, compress-force=zlib.
> >No quota or defrag or any of the new features is being used.
> >attached full dmesg capture via netconsole.
> adding some more info
Can you reproduce it? Or everything becomes good after a hard reboot?
Looks that this is an 'impossible' case from code analysis.
-liubo
>
> $ btrfs fi df /storage/btrfs
> Data, single: total=8.89TiB, used=8.43TiB
> System, RAID1: total=32.00MiB, used=992.00KiB
> Metadata, RAID1: total=69.00GiB, used=66.75GiB
> unknown, single: total=512.00MiB, used=112.00KiB
>
> $ btrfs fi show
> Label: none uuid: bde3c349-9e08-45bb-8517-b9a6dda81e88
> Total devices 6 FS bytes used 8.50TiB
> devid 1 size 3.64TiB used 3.02TiB path /dev/sdf
> devid 2 size 1.82TiB used 1.20TiB path /dev/sda
> devid 3 size 1.82TiB used 1.20TiB path /dev/sdb
> devid 4 size 1.82TiB used 1.20TiB path /dev/sdc
> devid 5 size 1.82TiB used 1.20TiB path /dev/sdd
> devid 6 size 1.82TiB used 1.20TiB path /dev/sdh
>
> Btrfs v3.14.2-dirty
>
> btrfs su li /storage/btrfs -q | grep "parent_uuid -" |wc -l
> 22
>
> btrfs su li /storage/btrfs -q | grep -v "parent_uuid -" |wc -l
> 5855
>
> So the filesystem has 22 subvolumes and 5855 snapshots.
> No vm images or databases are stored here, everything comes and goes
> with rsync, as this is a backup server.
>
> >
> >[ 855.493495] BTRFS info (device sdc): force zlib compression
> >[ 855.498427] BTRFS info (device sdc): disk space caching is enabled
> >[ 855.503348] BTRFS: has skinny extents
> >[27199.947244] ------------[ cut here ]------------
> >[27199.952216] kernel BUG at fs/btrfs/ctree.h:2456!
> >[27199.957188] invalid opcode: 0000 [#1] PREEMPT SMP
> >[27199.962184] Modules linked in: netconsole radeon kvm_amd
> >snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode
> >evdev snd_hda_intel snd_hda_controller mac_hid edac_core
> >snd_hda_codec snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd
> >serio_raw i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core
> >soundcore mii wmi shpchp button acpi_cpufreq processor ext4 crc16
> >mbcache jbd2 crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif
> >crct10dif_common ata_generic pata_acpi atkbd libps2 pata_jmicron
> >ahci libahci ohci_pci libata ohci_hcd ehci_pci xhci_hcd ehci_hcd
> >scsi_mod usbcore usb_common i8042 serio
> >[27199.990017] CPU: 1 PID: 7953 Comm: rsync Not tainted
> >3.15.0-rc8-gfad01e8 #1
> >[27199.995748] Hardware name: Gigabyte Technology Co., Ltd.
> >GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
> >[27200.001584] task: ffff880202928000 ti: ffff8800129e0000
> >task.ti: ffff8800129e0000
> >[27200.007439] RIP: 0010:[<ffffffffa0594017>] [<ffffffffa0594017>]
> >lookup_inline_extent_backref+0x407/0x5d0 [btrfs]
> >[27200.013445] RSP: 0018:ffff8800129e3a90 EFLAGS: 00010283
> >[27200.019397] RAX: 0000000000000038 RBX: ffff88002ef9af00 RCX:
> >ffff8800129e3a40
> >[27200.025312] RDX: ffff880000000000 RSI: 00000000000036b7 RDI:
> >ffff88002ef9af00
> >[27200.031119] RBP: ffff8800129e3b28 R08: 0000000000004000 R09:
> >ffff8800129e3a50
> >[27200.036801] R10: 0000000000000000 R11: 0000000000000003 R12:
> >00000000000000b8
> >[27200.042377] R13: 0000000000000038 R14: 00000000000036b7 R15:
> >000000000000399c
> >[27200.047899] FS: 00007f543bbec700(0000)
> >GS:ffff88020fc40000(0000) knlGS:0000000000000000
> >[27200.053379] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> >[27200.058751] CR2: 00000000015b6fd8 CR3: 000000018a0da000 CR4:
> >00000000000007e0
> >[27200.064060] Stack:
> >[27200.069215] 00000c14cecab000 ffff88019abf1480 0000000000000327
> >ffff8800129e3b68
> >[27200.074437] 000000000000399c 00000000000000b8 ffff88002ef9af00
> >0000000d000000b8
> >[27200.079585] ffff8800ce8fc800 b000ffffa0594e27 00a800000c14ceca
> >0000000000000020
> >[27200.084647] Call Trace:
> >[27200.089554] [<ffffffffa0595265>]
> >insert_inline_extent_backref+0x55/0xe0 [btrfs]
> >[27200.094467] [<ffffffffa0595386>]
> >__btrfs_inc_extent_ref+0x96/0x200 [btrfs]
> >[27200.099290] [<ffffffffa059c0f9>]
> >__btrfs_run_delayed_refs+0x819/0x1240 [btrfs]
> >[27200.104035] [<ffffffffa058979d>] ?
> >btrfs_put_tree_mod_seq+0x10d/0x150 [btrfs]
> >[27200.108676] [<ffffffffa05a091b>]
> >btrfs_run_delayed_refs.part.52+0x7b/0x260 [btrfs]
> >[27200.113241] [<ffffffffa05a0b17>]
> >btrfs_run_delayed_refs+0x17/0x20 [btrfs]
> >[27200.117675] [<ffffffffa05b1be3>]
> >__btrfs_end_transaction+0x243/0x380 [btrfs]
> >[27200.122031] [<ffffffffa05b1d30>]
> >btrfs_end_transaction+0x10/0x20 [btrfs]
> >[27200.126275] [<ffffffffa05bb31e>] btrfs_truncate+0x23e/0x330 [btrfs]
> >[27200.130452] [<ffffffffa05bbe48>] btrfs_setattr+0x228/0x2e0 [btrfs]
> >[27200.134549] [<ffffffff811c6781>] notify_change+0x221/0x380
> >[27200.138641] [<ffffffff811a9006>] do_truncate+0x66/0x90
> >[27200.142715] [<ffffffff811ad159>] ? __sb_start_write+0x49/0xf0
> >[27200.146795] [<ffffffff811a937b>]
> >do_sys_ftruncate.constprop.10+0x10b/0x160
> >[27200.150927] [<ffffffff811a940e>] SyS_ftruncate+0xe/0x10
> >[27200.155104] [<ffffffff814f56a9>] system_call_fastpath+0x16/0x1b
> >[27200.159297] Code: 48 39 45 10 74 74 0f 87 28 01 00 00 41 81 fd
> >b6 00 00 00 74 1f 41 81 fd b0 00 00 00 74 16 41 81 fd b8 00 00 00
> >0f 84 69 01 00 00 <0f> 0b 0f 1f 80 00 00 00 00 b8 09 00 00 00 49
> >01 c6 4d 39 f7 0f
> >[27200.168637] RIP [<ffffffffa0594017>]
> >lookup_inline_extent_backref+0x407/0x5d0 [btrfs]
> >[27200.173160] RSP <ffff8800129e3a90>
> >[27200.194497] ---[ end trace e900836ae0ecd5f8 ]---
> >[27200.198957] note: rsync[7953] exited with preempt_count 1
> >[27228.287568] BUG: soft lockup - CPU#0 stuck for 23s!
> >[kworker/u16:11:7840]
> >[27228.288734] Modules linked in: netconsole radeon kvm_amd
> >snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode
> >evdev snd_hda_intel snd_hda_controller mac_hid edac_core
> >snd_hda_codec snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd
> >serio_raw i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core
> >soundcore mii wmi shpchp button acpi_cpufreq processor ext4 crc16
> >mbcache jbd2 crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif
> >crct10dif_common ata_generic pata_acpi atkbd libps2 pata_jmicron
> >ahci libahci ohci_pci libata ohci_hcd ehci_pci xhci_hcd ehci_hcd
> >scsi_mod usbcore usb_common i8042 serio
> >[27228.294863] CPU: 0 PID: 7840 Comm: kworker/u16:11 Tainted: G D
> >3.15.0-rc8-gfad01e8 #1
> >[27228.296032] Hardware name: Gigabyte Technology Co., Ltd.
> >GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
> >[27228.297221] Workqueue: btrfs-endio-write normal_work_helper [btrfs]
> >[27228.298385] task: ffff880204ec9e90 ti: ffff8800335b8000
> >task.ti: ffff8800335b8000
> >[27228.299540] RIP: 0010:[<ffffffff8128f993>] [<ffffffff8128f993>]
> >__write_lock_failed+0x13/0x20
> >[27228.300703] RSP: 0018:ffff8800335bb918 EFLAGS: 00000287
> >[27228.301842] RAX: 0000000000000000 RBX: ffff8800335bb9b0 RCX:
> >0000000000000001
> >[27228.302984] RDX: 0000000000000000 RSI: ffff88008aa46280 RDI:
> >ffff88008aa462f0
> >[27228.304125] RBP: ffff8800335bb918 R08: 0000000000000001 R09:
> >ffff880180d30500
> >[27228.304256] BUG: soft lockup - CPU#1 stuck for 23s! [mkdir:7979]
> >[27228.304277] Modules linked in: netconsole radeon kvm_amd
> >snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode
> >evdev snd_hda_intel snd_hda_controller mac_hid edac_core
> >snd_hda_codec snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd
> >serio_raw i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core
> >soundcore mii wmi shpchp button acpi_cpufreq processor ext4 crc16
> >mbcache jbd2 crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif
> >crct10dif_common ata_generic pata_acpi atkbd libps2 pata_jmicron
> >ahci libahci ohci_pci libata ohci_hcd ehci_pci xhci_hcd ehci_hcd
> >scsi_mod usbcore usb_common i8042 serio
> >[27228.304279] CPU: 1 PID: 7979 Comm: mkdir Tainted: G D
> >3.15.0-rc8-gfad01e8 #1
> >[27228.304280] Hardware name: Gigabyte Technology Co., Ltd.
> >GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
> >[27228.304281] task: ffff88020086b2f0 ti: ffff8800055e4000
> >task.ti: ffff8800055e4000
> >[27228.304286] RIP: 0010:[<ffffffff8128f993>] [<ffffffff8128f993>]
> >__write_lock_failed+0x13/0x20
> >[27228.304287] RSP: 0018:ffff8800055e7a38 EFLAGS: 00000287
> >[27228.304287] RAX: 0000000000000000 RBX: ffff8800055e7ad0 RCX:
> >0000000000000001
> >[27228.304288] RDX: 0000000000000000 RSI: ffff88002ef9af00 RDI:
> >ffff88002ef9af70
> >[27228.304288] RBP: ffff8800055e7a38 R08: 0000000000000001 R09:
> >ffff880145df9a00
> >[27228.304289] R10: ffff880000000000 R11: 0000000000000001 R12:
> >ffffffffa05ab0f6
> >[27228.304289] R13: ffff8800055e79c8 R14: 0000000000000001 R15:
> >0000000000016085
> >[27228.304290] FS: 00007f5a38a33700(0000)
> >GS:ffff88020fc40000(0000) knlGS:0000000000000000
> >[27228.304291] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> >[27228.304291] CR2: 0000000001c7f9b0 CR3: 000000019b669000 CR4:
> >00000000000007e0
> >[27228.304292] Stack:
> >[27228.304293] ffff8800055e7a48 ffffffff814ecdff ffff8800055e7a68
> >ffffffffa05e7f3e
> >[27228.304294] ffff880107b20990 0000000000000000 ffff8800055e7b00
> >ffffffffa058e0f0
> >[27228.304295] ffffea0006209c40 ffff8800055e7aa8 ffffea0006209c40
> >00000008cb2206d8
> >[27228.304295] Call Trace:
> >[27228.304299] [<ffffffff814ecdff>] _raw_write_lock+0x1f/0x30
> >[27228.304316] [<ffffffffa05e7f3e>]
> >btrfs_try_tree_write_lock+0x2e/0x80 [btrfs]
> >[27228.304322] [<ffffffffa058e0f0>] btrfs_search_slot+0x480/0xa50
> >[btrfs]
> >[27228.304327] [<ffffffffa0593cd5>]
> >lookup_inline_extent_backref+0xc5/0x5d0 [btrfs]
> >[27228.304332] [<ffffffffa0595265>]
> >insert_inline_extent_backref+0x55/0xe0 [btrfs]
> >[27228.304337] [<ffffffffa0595386>]
> >__btrfs_inc_extent_ref+0x96/0x200 [btrfs]
> >[27228.304344] [<ffffffffa05f79a1>] ? find_ref_head+0x61/0x80 [btrfs]
> >[27228.304350] [<ffffffffa059c0f9>]
> >__btrfs_run_delayed_refs+0x819/0x1240 [btrfs]
> >[27228.304357] [<ffffffffa06029c9>] ?
> >__btrfs_release_delayed_node+0xc9/0x200 [btrfs]
> >[27228.304361] [<ffffffffa059202b>] ?
> >block_rsv_add_bytes+0x4b/0x60 [btrfs]
> >[27228.304366] [<ffffffffa058979d>] ?
> >btrfs_put_tree_mod_seq+0x10d/0x150 [btrfs]
> >[27228.304372] [<ffffffffa05a091b>]
> >btrfs_run_delayed_refs.part.52+0x7b/0x260 [btrfs]
> >[27228.304377] [<ffffffffa05a0b17>]
> >btrfs_run_delayed_refs+0x17/0x20 [btrfs]
> >[27228.304384] [<ffffffffa05b1be3>]
> >__btrfs_end_transaction+0x243/0x380 [btrfs]
> >[27228.304390] [<ffffffffa05b1d30>]
> >btrfs_end_transaction+0x10/0x20 [btrfs]
> >[27228.304397] [<ffffffffa05bf2d2>] btrfs_mkdir+0x72/0x1e0 [btrfs]
> >[27228.304399] [<ffffffff811b6b41>] vfs_mkdir+0xa1/0x100
> >[27228.304401] [<ffffffff811bb1aa>] SyS_mkdirat+0xaa/0xe0
> >[27228.304403] [<ffffffff811bb1f9>] SyS_mkdir+0x19/0x20
> >[27228.304405] [<ffffffff814f56a9>] system_call_fastpath+0x16/0x1b
> >[27228.304415] Code: c3 b8 f2 ff ff ff 66 66 90 c3 90 90 90 90 90
> >90 90 90 90 90 90 90 90 90 55 48 89 e5 f0 81 07 00 00 10 00 f3 90
> >81 3f 00 00 10 00 <75> f6 f0 81 2f 00 00 10 00 75 e6 5d c3 55 48
> >89 e5 f0 ff 07 f3
> >[27228.320945] BUG: soft lockup - CPU#2 stuck for 23s!
> >[kworker/u16:0:7734]
> >
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" 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] 3+ messages in thread
* Re: kernel BUG at fs/btrfs/ctree.h:2456
2014-06-05 7:05 ` Liu Bo
@ 2014-06-05 13:16 ` Konstantinos Skarlatos
0 siblings, 0 replies; 3+ messages in thread
From: Konstantinos Skarlatos @ 2014-06-05 13:16 UTC (permalink / raw)
To: bo.li.liu; +Cc: linux-btrfs
On 5/6/2014 10:05 πμ, Liu Bo wrote:
> Hi, Konstantinos
>
> On Thu, Jun 05, 2014 at 09:28:16AM +0300, Konstantinos Skarlatos wrote:
>> On 5/6/2014 1:59 πμ, Konstantinos Skarlatos wrote:
>>> Hi, I get this after doing a few runs of rsync on my btrfs filesystem.
>>> kernel: 3.15.0-rc8
>>> filesystem has 6x2tb disks, data is raid 0, fs was created with
>>> skinny metadata, mount options are noatime, compress-force=zlib.
>>> No quota or defrag or any of the new features is being used.
>>> attached full dmesg capture via netconsole.
>> adding some more info
> Can you reproduce it? Or everything becomes good after a hard reboot?
>
> Looks that this is an 'impossible' case from code analysis.
>
> -liubo
I recompiled my kernel with CONFIG_BTRFS_DEBUG=y. after a few minutes of
scrub and rsync, i got this
[ 264.271695] BTRFS info (device sda): force zlib compression
[ 264.276668] BTRFS info (device sda): disk space caching is enabled
[ 264.282950] BTRFS: has skinny extents
[ 363.412708] BTRFS: checking UUID tree
[ 1115.402092] BTRFS: checksum/header error at logical 4003307880448 on
dev /dev/sda, sector 66783040: metadata node (level -1) in tree
18446744073709551615
[ 1115.406251] ------------[ cut here ]------------
[ 1115.408251] kernel BUG at fs/btrfs/ctree.h:2456!
[ 1115.410257] invalid opcode: 0000 [#1] PREEMPT SMP
[ 1115.412291] Modules linked in: netconsole kvm_amd radeon kvm ttm
drm_kms_helper snd_hda_codec_hdmi serio_raw drm k10temp edac_core evdev
mac_hid microcode hwmon edac_mce_amd r8169 mii i2c_algo_bit pcspkr
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm
snd_timer snd soundcore wmi shpchp sp5100_tco i2c_piix4 i2c_core button
acpi_cpufreq processor ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor
raid6_pq sd_mod crc_t10dif crct10dif_common ata_generic pata_acpi atkbd
libps2 ahci pata_jmicron libahci libata ohci_pci ohci_hcd ehci_pci
ehci_hcd scsi_mod xhci_hcd usbcore i8042 serio usb_common
[ 1115.423444] CPU: 2 PID: 101 Comm: kworker/u16:6 Not tainted
3.15.0-rc8-g54539cd #1
[ 1115.425705] Hardware name: Gigabyte Technology Co., Ltd.
GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
[ 1115.428023] Workqueue: btrfs-btrfs-scrub normal_work_helper [btrfs]
[ 1115.430296] task: ffff880203451e90 ti: ffff880203130000 task.ti:
ffff880203130000
[ 1115.432548] RIP: 0010:[<ffffffffa04437ac>] [<ffffffffa04437ac>]
tree_backref_for_extent+0x1cc/0x1d0 [btrfs]
[ 1115.435433] RSP: 0018:ffff880203133b40 EFLAGS: 00010283
[ 1115.438253] RAX: 0000000000000019 RBX: 0000000000002c05 RCX:
ffff880203133af0
[ 1115.441083] RDX: ffff880000000000 RSI: 0000000000002c0e RDI:
ffff88017e90efc0
[ 1115.443858] RBP: ffff880203133b88 R08: 0000000000004000 R09:
ffff880203133b00
[ 1115.446573] R10: 0000000000000000 R11: 0000000000000002 R12:
ffff88017e90efc0
[ 1115.449230] R13: 0000000000002be4 R14: ffff880203133bc0 R15:
0000000000002c0e
[ 1115.451835] FS: 00007f9a2c9f1700(0000) GS:ffff88020fc80000(0000)
knlGS:0000000000000000
[ 1115.454422] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 1115.456960] CR2: 00007f05da035000 CR3: 00000001ddbc0000 CR4:
00000000000007e0
[ 1115.459467] Stack:
[ 1115.461894] ffff880203133bbf ffff880203133bd0 0000000000002bfc
0000000000002c0e
[ 1115.464345] 00000000fffffffe 0000000000000021 ffffffffa0460834
ffff88017e90efc0
[ 1115.466760] ffff880202cbc000 ffff880203133c60 ffffffffa043ab5c
ffffffffffffffff
[ 1115.469138] Call Trace:
[ 1115.471447] [<ffffffffa043ab5c>] scrub_print_warning+0x28c/0x2d0 [btrfs]
[ 1115.473737] [<ffffffffa03de746>] ? btrfs_csum_data+0x16/0x20 [btrfs]
[ 1115.475975] [<ffffffffa043de94>]
scrub_handle_errored_block+0x974/0xae0 [btrfs]
[ 1115.478176] [<ffffffffa043e228>] scrub_bio_end_io_worker+0x228/0x810
[btrfs]
[ 1115.480327] [<ffffffffa0414b77>] normal_work_helper+0x77/0x350 [btrfs]
[ 1115.482438] [<ffffffff810821c8>] process_one_work+0x168/0x450
[ 1115.484518] [<ffffffff81082c02>] worker_thread+0x132/0x3e0
[ 1115.486601] [<ffffffff81082ad0>] ? manage_workers.isra.23+0x2d0/0x2d0
[ 1115.488693] [<ffffffff8108908b>] kthread+0xdb/0x100
[ 1115.490770] [<ffffffff81088fb0>] ? kthread_create_on_node+0x180/0x180
[ 1115.492881] [<ffffffff814f573c>] ret_from_fork+0x7c/0xb0
[ 1115.494997] [<ffffffff81088fb0>] ? kthread_create_on_node+0x180/0x180
[ 1115.497129] Code: ff 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f
1f 80 00 00 00 00 48 83 c4 20 b8 fe ff ff ff 5b 41 5c 41 5d 41 5e 41 5f
5d c3 <0f> 0b 66 90 66 66 66 66 90 55 48 89 e5 41 57 41 56 41 55 41 54
[ 1115.501825] RIP [<ffffffffa04437ac>]
tree_backref_for_extent+0x1cc/0x1d0 [btrfs]
[ 1115.504103] RSP <ffff880203133b40>
[ 1115.514902] ---[ end trace 54741a57d59e0263 ]---
[ 1115.516654] BUG: unable to handle kernel paging request at
ffffffffffffffd8
[ 1115.518247] IP: [<ffffffff810896f0>] kthread_data+0x10/0x20
[ 1115.519811] PGD 1814067 PUD 1816067 PMD 0
[ 1115.521277] Oops: 0000 [#2] PREEMPT SMP
[ 1115.522735] Modules linked in: netconsole kvm_amd radeon kvm ttm
drm_kms_helper snd_hda_codec_hdmi serio_raw drm k10temp edac_core evdev
mac_hid microcode hwmon edac_mce_amd r8169 mii i2c_algo_bit pcspkr
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm
snd_timer snd soundcore wmi shpchp sp5100_tco i2c_piix4 i2c_core
>> $ btrfs fi df /storage/btrfs
>> Data, single: total=8.89TiB, used=8.43TiB
>> System, RAID1: total=32.00MiB, used=992.00KiB
>> Metadata, RAID1: total=69.00GiB, used=66.75GiB
>> unknown, single: total=512.00MiB, used=112.00KiB
>>
>> $ btrfs fi show
>> Label: none uuid: bde3c349-9e08-45bb-8517-b9a6dda81e88
>> Total devices 6 FS bytes used 8.50TiB
>> devid 1 size 3.64TiB used 3.02TiB path /dev/sdf
>> devid 2 size 1.82TiB used 1.20TiB path /dev/sda
>> devid 3 size 1.82TiB used 1.20TiB path /dev/sdb
>> devid 4 size 1.82TiB used 1.20TiB path /dev/sdc
>> devid 5 size 1.82TiB used 1.20TiB path /dev/sdd
>> devid 6 size 1.82TiB used 1.20TiB path /dev/sdh
>>
>> Btrfs v3.14.2-dirty
>>
>> btrfs su li /storage/btrfs -q | grep "parent_uuid -" |wc -l
>> 22
>>
>> btrfs su li /storage/btrfs -q | grep -v "parent_uuid -" |wc -l
>> 5855
>>
>> So the filesystem has 22 subvolumes and 5855 snapshots.
>> No vm images or databases are stored here, everything comes and goes
>> with rsync, as this is a backup server.
>>
>>> [ 855.493495] BTRFS info (device sdc): force zlib compression
>>> [ 855.498427] BTRFS info (device sdc): disk space caching is enabled
>>> [ 855.503348] BTRFS: has skinny extents
>>> [27199.947244] ------------[ cut here ]------------
>>> [27199.952216] kernel BUG at fs/btrfs/ctree.h:2456!
>>> [27199.957188] invalid opcode: 0000 [#1] PREEMPT SMP
>>> [27199.962184] Modules linked in: netconsole radeon kvm_amd
>>> snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode
>>> evdev snd_hda_intel snd_hda_controller mac_hid edac_core
>>> snd_hda_codec snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd
>>> serio_raw i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core
>>> soundcore mii wmi shpchp button acpi_cpufreq processor ext4 crc16
>>> mbcache jbd2 crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif
>>> crct10dif_common ata_generic pata_acpi atkbd libps2 pata_jmicron
>>> ahci libahci ohci_pci libata ohci_hcd ehci_pci xhci_hcd ehci_hcd
>>> scsi_mod usbcore usb_common i8042 serio
>>> [27199.990017] CPU: 1 PID: 7953 Comm: rsync Not tainted
>>> 3.15.0-rc8-gfad01e8 #1
>>> [27199.995748] Hardware name: Gigabyte Technology Co., Ltd.
>>> GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
>>> [27200.001584] task: ffff880202928000 ti: ffff8800129e0000
>>> task.ti: ffff8800129e0000
>>> [27200.007439] RIP: 0010:[<ffffffffa0594017>] [<ffffffffa0594017>]
>>> lookup_inline_extent_backref+0x407/0x5d0 [btrfs]
>>> [27200.013445] RSP: 0018:ffff8800129e3a90 EFLAGS: 00010283
>>> [27200.019397] RAX: 0000000000000038 RBX: ffff88002ef9af00 RCX:
>>> ffff8800129e3a40
>>> [27200.025312] RDX: ffff880000000000 RSI: 00000000000036b7 RDI:
>>> ffff88002ef9af00
>>> [27200.031119] RBP: ffff8800129e3b28 R08: 0000000000004000 R09:
>>> ffff8800129e3a50
>>> [27200.036801] R10: 0000000000000000 R11: 0000000000000003 R12:
>>> 00000000000000b8
>>> [27200.042377] R13: 0000000000000038 R14: 00000000000036b7 R15:
>>> 000000000000399c
>>> [27200.047899] FS: 00007f543bbec700(0000)
>>> GS:ffff88020fc40000(0000) knlGS:0000000000000000
>>> [27200.053379] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>>> [27200.058751] CR2: 00000000015b6fd8 CR3: 000000018a0da000 CR4:
>>> 00000000000007e0
>>> [27200.064060] Stack:
>>> [27200.069215] 00000c14cecab000 ffff88019abf1480 0000000000000327
>>> ffff8800129e3b68
>>> [27200.074437] 000000000000399c 00000000000000b8 ffff88002ef9af00
>>> 0000000d000000b8
>>> [27200.079585] ffff8800ce8fc800 b000ffffa0594e27 00a800000c14ceca
>>> 0000000000000020
>>> [27200.084647] Call Trace:
>>> [27200.089554] [<ffffffffa0595265>]
>>> insert_inline_extent_backref+0x55/0xe0 [btrfs]
>>> [27200.094467] [<ffffffffa0595386>]
>>> __btrfs_inc_extent_ref+0x96/0x200 [btrfs]
>>> [27200.099290] [<ffffffffa059c0f9>]
>>> __btrfs_run_delayed_refs+0x819/0x1240 [btrfs]
>>> [27200.104035] [<ffffffffa058979d>] ?
>>> btrfs_put_tree_mod_seq+0x10d/0x150 [btrfs]
>>> [27200.108676] [<ffffffffa05a091b>]
>>> btrfs_run_delayed_refs.part.52+0x7b/0x260 [btrfs]
>>> [27200.113241] [<ffffffffa05a0b17>]
>>> btrfs_run_delayed_refs+0x17/0x20 [btrfs]
>>> [27200.117675] [<ffffffffa05b1be3>]
>>> __btrfs_end_transaction+0x243/0x380 [btrfs]
>>> [27200.122031] [<ffffffffa05b1d30>]
>>> btrfs_end_transaction+0x10/0x20 [btrfs]
>>> [27200.126275] [<ffffffffa05bb31e>] btrfs_truncate+0x23e/0x330 [btrfs]
>>> [27200.130452] [<ffffffffa05bbe48>] btrfs_setattr+0x228/0x2e0 [btrfs]
>>> [27200.134549] [<ffffffff811c6781>] notify_change+0x221/0x380
>>> [27200.138641] [<ffffffff811a9006>] do_truncate+0x66/0x90
>>> [27200.142715] [<ffffffff811ad159>] ? __sb_start_write+0x49/0xf0
>>> [27200.146795] [<ffffffff811a937b>]
>>> do_sys_ftruncate.constprop.10+0x10b/0x160
>>> [27200.150927] [<ffffffff811a940e>] SyS_ftruncate+0xe/0x10
>>> [27200.155104] [<ffffffff814f56a9>] system_call_fastpath+0x16/0x1b
>>> [27200.159297] Code: 48 39 45 10 74 74 0f 87 28 01 00 00 41 81 fd
>>> b6 00 00 00 74 1f 41 81 fd b0 00 00 00 74 16 41 81 fd b8 00 00 00
>>> 0f 84 69 01 00 00 <0f> 0b 0f 1f 80 00 00 00 00 b8 09 00 00 00 49
>>> 01 c6 4d 39 f7 0f
>>> [27200.168637] RIP [<ffffffffa0594017>]
>>> lookup_inline_extent_backref+0x407/0x5d0 [btrfs]
>>> [27200.173160] RSP <ffff8800129e3a90>
>>> [27200.194497] ---[ end trace e900836ae0ecd5f8 ]---
>>> [27200.198957] note: rsync[7953] exited with preempt_count 1
>>> [27228.287568] BUG: soft lockup - CPU#0 stuck for 23s!
>>> [kworker/u16:11:7840]
>>> [27228.288734] Modules linked in: netconsole radeon kvm_amd
>>> snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode
>>> evdev snd_hda_intel snd_hda_controller mac_hid edac_core
>>> snd_hda_codec snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd
>>> serio_raw i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core
>>> soundcore mii wmi shpchp button acpi_cpufreq processor ext4 crc16
>>> mbcache jbd2 crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif
>>> crct10dif_common ata_generic pata_acpi atkbd libps2 pata_jmicron
>>> ahci libahci ohci_pci libata ohci_hcd ehci_pci xhci_hcd ehci_hcd
>>> scsi_mod usbcore usb_common i8042 serio
>>> [27228.294863] CPU: 0 PID: 7840 Comm: kworker/u16:11 Tainted: G D
>>> 3.15.0-rc8-gfad01e8 #1
>>> [27228.296032] Hardware name: Gigabyte Technology Co., Ltd.
>>> GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
>>> [27228.297221] Workqueue: btrfs-endio-write normal_work_helper [btrfs]
>>> [27228.298385] task: ffff880204ec9e90 ti: ffff8800335b8000
>>> task.ti: ffff8800335b8000
>>> [27228.299540] RIP: 0010:[<ffffffff8128f993>] [<ffffffff8128f993>]
>>> __write_lock_failed+0x13/0x20
>>> [27228.300703] RSP: 0018:ffff8800335bb918 EFLAGS: 00000287
>>> [27228.301842] RAX: 0000000000000000 RBX: ffff8800335bb9b0 RCX:
>>> 0000000000000001
>>> [27228.302984] RDX: 0000000000000000 RSI: ffff88008aa46280 RDI:
>>> ffff88008aa462f0
>>> [27228.304125] RBP: ffff8800335bb918 R08: 0000000000000001 R09:
>>> ffff880180d30500
>>> [27228.304256] BUG: soft lockup - CPU#1 stuck for 23s! [mkdir:7979]
>>> [27228.304277] Modules linked in: netconsole radeon kvm_amd
>>> snd_hda_codec_hdmi ttm drm_kms_helper drm kvm r8169 microcode
>>> evdev snd_hda_intel snd_hda_controller mac_hid edac_core
>>> snd_hda_codec snd_hwdep edac_mce_amd snd_pcm pcspkr snd_timer snd
>>> serio_raw i2c_algo_bit k10temp hwmon sp5100_tco i2c_piix4 i2c_core
>>> soundcore mii wmi shpchp button acpi_cpufreq processor ext4 crc16
>>> mbcache jbd2 crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif
>>> crct10dif_common ata_generic pata_acpi atkbd libps2 pata_jmicron
>>> ahci libahci ohci_pci libata ohci_hcd ehci_pci xhci_hcd ehci_hcd
>>> scsi_mod usbcore usb_common i8042 serio
>>> [27228.304279] CPU: 1 PID: 7979 Comm: mkdir Tainted: G D
>>> 3.15.0-rc8-gfad01e8 #1
>>> [27228.304280] Hardware name: Gigabyte Technology Co., Ltd.
>>> GA-890GPA-UD3H/GA-890GPA-UD3H, BIOS FD 07/23/2010
>>> [27228.304281] task: ffff88020086b2f0 ti: ffff8800055e4000
>>> task.ti: ffff8800055e4000
>>> [27228.304286] RIP: 0010:[<ffffffff8128f993>] [<ffffffff8128f993>]
>>> __write_lock_failed+0x13/0x20
>>> [27228.304287] RSP: 0018:ffff8800055e7a38 EFLAGS: 00000287
>>> [27228.304287] RAX: 0000000000000000 RBX: ffff8800055e7ad0 RCX:
>>> 0000000000000001
>>> [27228.304288] RDX: 0000000000000000 RSI: ffff88002ef9af00 RDI:
>>> ffff88002ef9af70
>>> [27228.304288] RBP: ffff8800055e7a38 R08: 0000000000000001 R09:
>>> ffff880145df9a00
>>> [27228.304289] R10: ffff880000000000 R11: 0000000000000001 R12:
>>> ffffffffa05ab0f6
>>> [27228.304289] R13: ffff8800055e79c8 R14: 0000000000000001 R15:
>>> 0000000000016085
>>> [27228.304290] FS: 00007f5a38a33700(0000)
>>> GS:ffff88020fc40000(0000) knlGS:0000000000000000
>>> [27228.304291] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>>> [27228.304291] CR2: 0000000001c7f9b0 CR3: 000000019b669000 CR4:
>>> 00000000000007e0
>>> [27228.304292] Stack:
>>> [27228.304293] ffff8800055e7a48 ffffffff814ecdff ffff8800055e7a68
>>> ffffffffa05e7f3e
>>> [27228.304294] ffff880107b20990 0000000000000000 ffff8800055e7b00
>>> ffffffffa058e0f0
>>> [27228.304295] ffffea0006209c40 ffff8800055e7aa8 ffffea0006209c40
>>> 00000008cb2206d8
>>> [27228.304295] Call Trace:
>>> [27228.304299] [<ffffffff814ecdff>] _raw_write_lock+0x1f/0x30
>>> [27228.304316] [<ffffffffa05e7f3e>]
>>> btrfs_try_tree_write_lock+0x2e/0x80 [btrfs]
>>> [27228.304322] [<ffffffffa058e0f0>] btrfs_search_slot+0x480/0xa50
>>> [btrfs]
>>> [27228.304327] [<ffffffffa0593cd5>]
>>> lookup_inline_extent_backref+0xc5/0x5d0 [btrfs]
>>> [27228.304332] [<ffffffffa0595265>]
>>> insert_inline_extent_backref+0x55/0xe0 [btrfs]
>>> [27228.304337] [<ffffffffa0595386>]
>>> __btrfs_inc_extent_ref+0x96/0x200 [btrfs]
>>> [27228.304344] [<ffffffffa05f79a1>] ? find_ref_head+0x61/0x80 [btrfs]
>>> [27228.304350] [<ffffffffa059c0f9>]
>>> __btrfs_run_delayed_refs+0x819/0x1240 [btrfs]
>>> [27228.304357] [<ffffffffa06029c9>] ?
>>> __btrfs_release_delayed_node+0xc9/0x200 [btrfs]
>>> [27228.304361] [<ffffffffa059202b>] ?
>>> block_rsv_add_bytes+0x4b/0x60 [btrfs]
>>> [27228.304366] [<ffffffffa058979d>] ?
>>> btrfs_put_tree_mod_seq+0x10d/0x150 [btrfs]
>>> [27228.304372] [<ffffffffa05a091b>]
>>> btrfs_run_delayed_refs.part.52+0x7b/0x260 [btrfs]
>>> [27228.304377] [<ffffffffa05a0b17>]
>>> btrfs_run_delayed_refs+0x17/0x20 [btrfs]
>>> [27228.304384] [<ffffffffa05b1be3>]
>>> __btrfs_end_transaction+0x243/0x380 [btrfs]
>>> [27228.304390] [<ffffffffa05b1d30>]
>>> btrfs_end_transaction+0x10/0x20 [btrfs]
>>> [27228.304397] [<ffffffffa05bf2d2>] btrfs_mkdir+0x72/0x1e0 [btrfs]
>>> [27228.304399] [<ffffffff811b6b41>] vfs_mkdir+0xa1/0x100
>>> [27228.304401] [<ffffffff811bb1aa>] SyS_mkdirat+0xaa/0xe0
>>> [27228.304403] [<ffffffff811bb1f9>] SyS_mkdir+0x19/0x20
>>> [27228.304405] [<ffffffff814f56a9>] system_call_fastpath+0x16/0x1b
>>> [27228.304415] Code: c3 b8 f2 ff ff ff 66 66 90 c3 90 90 90 90 90
>>> 90 90 90 90 90 90 90 90 90 55 48 89 e5 f0 81 07 00 00 10 00 f3 90
>>> 81 3f 00 00 10 00 <75> f6 f0 81 2f 00 00 10 00 75 e6 5d c3 55 48
>>> 89 e5 f0 ff 07 f3
>>> [27228.320945] BUG: soft lockup - CPU#2 stuck for 23s!
>>> [kworker/u16:0:7734]
>>>
>> --
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[not found] <538FA4E2.4050108@gmail.com>
2014-06-05 6:28 ` kernel BUG at fs/btrfs/ctree.h:2456 Konstantinos Skarlatos
2014-06-05 7:05 ` Liu Bo
2014-06-05 13:16 ` Konstantinos Skarlatos
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