Ubuntu
linux package

freeze on diskIO without real IO

Bug #1250828 reported by jl451
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
Medium
Unassigned

Bug Description

I have ubuntu 13.04-13.10 with kernel 3.8-3.12 (from distributive and from http://kernel.ubuntu.com/~kernel-ppa/mainline/ )
Sometimes (in 1-3-5-... minutes) then some program use disk i has freeze it program, and if different program use disk in it time - it may freeze too. But htop and iotop show 0 diskIO at this time. Cpu-usage ~1-5%.

Now uname -a :
Linux Ubunto4ka 3.11.7-031107-generic #201311040853 SMP Mon Nov 4 13:54:11 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

cat /proc/version
Linux version 3.11.7-031107-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201311040853 SMP Mon Nov 4 13:54:11 UTC 2013

apt-cache policy linux-image-3.11.7-031107-generic
 *** 3.11.7-031107.201311040853
(from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.7-saucy/ )

cat /proc/mounts |grep btrf
/dev/sda1 / btrfs rw,noatime,compress=zlib,space_cache 0 0
/dev/sda5 /data btrfs rw,noatime,compress=zlib,space_cache 0 0
/dev/sda5 /home btrfs rw,noatime,compress=zlib,space_cache 0 0

btrfs --version
Btrfs v0.20-rc1

apt-cache policy btrfs-tools
 *** 0.19+20130705-1 0
        500 http://mirror.yandex.ru/ubuntu/ saucy/main amd64 Packages

Some logs from dmesg -Tx :

Nov 8 17:27:52 Ubunto4ka kernel: [177440.972570] INFO: task okular:28758 blocked for more than 120 seconds.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972570] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972571] okular D 0000000000000003 0 28758 1772 0x00000000
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972573] ffff880094b37948 0000000000000046 ffff880136f32198 ffff880137378800
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972575] ffff880094b37fd8 ffff880094b37fd8 ffff880094b37fd8 0000000000014540
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972576] ffff880139370000 ffff88002a814650 ffff880094b37958 ffff880138be0000
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972578] Call Trace:
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972580] [<ffffffff8171ec99>] schedule+0x29/0x70
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972588] [<ffffffffa006c6f1>] wait_current_trans.isra.31+0xc1/0x120 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972590] [<ffffffff81089b00>] ? add_wait_queue+0x60/0x60
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972598] [<ffffffffa006e53e>] start_transaction.part.33+0x2de/0x500 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972605] [<ffffffffa006e789>] start_transaction+0x29/0x30 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972612] [<ffffffffa006e9db>] btrfs_start_transaction+0x1b/0x20 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972620] [<ffffffffa0079067>] btrfs_setsize.isra.56+0x57/0x1b0 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972628] [<ffffffffa0079292>] btrfs_setattr+0xd2/0xf0 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972630] [<ffffffff811cecb3>] notify_change+0x1d3/0x390
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972632] [<ffffffff812b8da4>] ? truncate_upper.isra.16+0x134/0x230
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972634] [<ffffffff812b8ff8>] ecryptfs_setattr+0x158/0x320
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972644] [<ffffffff811cecb3>] notify_change+0x1d3/0x390
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972646] [<ffffffff811b147e>] do_truncate+0x5e/0xa0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972648] [<ffffffff811be2eb>] handle_truncate+0x6b/0xa0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972650] [<ffffffff811c2c12>] do_last+0x5d2/0x770
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972652] [<ffffffff811c2e74>] path_openat+0xc4/0x4f0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972654] [<ffffffff811c3653>] ? user_path_at_empty+0x63/0xa0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972657] [<ffffffff811c36f3>] do_filp_open+0x43/0xa0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972659] [<ffffffff811d02a5>] ? __alloc_fd+0xd5/0x160
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972661] [<ffffffff811b26f2>] do_sys_open+0x132/0x220
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972663] [<ffffffff811b27fe>] SyS_open+0x1e/0x20
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972664] [<ffffffff8172951d>] system_call_fastpath+0x1a/0x1f

Nov 8 17:27:52 Ubunto4ka kernel: [177440.972286] INFO: task enlightenment:1720 blocked for more than 120 seconds.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972289] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972291] enlightenment D 0000000000000000 0 1720 1715 0x00000000
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972294] ffff8801106679e8 0000000000000046 ffff880136f32198 ffff880137378800
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972296] ffff880110667fd8 ffff880110667fd8 ffff880110667fd8 0000000000014540
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972298] ffffffff81c14440 ffff880110668000 ffff8801106679f8 ffff880138be0000
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972301] Call Trace:
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972307] [<ffffffff8171ec99>] schedule+0x29/0x70
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972328] [<ffffffffa006c6f1>] wait_current_trans.isra.31+0xc1/0x120 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972332] [<ffffffff81089b00>] ? add_wait_queue+0x60/0x60
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972341] [<ffffffffa006e53e>] start_transaction.part.33+0x2de/0x500 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972349] [<ffffffffa006e789>] start_transaction+0x29/0x30 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972357] [<ffffffffa006e9db>] btrfs_start_transaction+0x1b/0x20 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972366] [<ffffffffa007c936>] btrfs_create+0x46/0x220 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972369] [<ffffffff812ef5bc>] ? security_inode_permission+0x1c/0x30
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972372] [<ffffffff811c2405>] vfs_create+0xb5/0x120
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972374] [<ffffffff812b8787>] ecryptfs_do_create+0x57/0x130
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972376] [<ffffffff812b9ccb>] ecryptfs_create+0x2b/0xc0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972378] [<ffffffff811c2405>] vfs_create+0xb5/0x120
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972380] [<ffffffff811c25ae>] lookup_open+0x13e/0x1d0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972383] [<ffffffff811bf1d8>] ? inode_permission+0x18/0x50
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972385] [<ffffffff811d2af8>] ? __mnt_want_write+0x58/0x70
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972387] [<ffffffff811c2947>] do_last+0x307/0x770
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972397] [<ffffffff811c2e74>] path_openat+0xc4/0x4f0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972399] [<ffffffff811c36f3>] do_filp_open+0x43/0xa0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972401] [<ffffffff811d02a5>] ? __alloc_fd+0xd5/0x160
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972404] [<ffffffff811b26f2>] do_sys_open+0x132/0x220
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972405] [<ffffffff811c771e>] ? SyS_select+0xce/0x100
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972407] [<ffffffff811b27fe>] SyS_open+0x1e/0x20
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972410] [<ffffffff8172951d>] system_call_fastpath+0x1a/0x1f
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972417] INFO: task BrowserBlocking:3147 blocked for more than 120 seconds.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972418] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972419] BrowserBlocking D 0000000000000000 0 3147 1720 0x00000000
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972421] ffff880054d2fd88 0000000000000046 ffffea00010eee40 ffffea00001fb700
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972422] ffff880054d2ffd8 ffff880054d2ffd8 ffff880054d2ffd8 0000000000014540
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972424] ffffffff81c14440 ffff88004c6dc650 ffff880054d2fd98 ffff880138be0000
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972426] Call Trace:
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972428] [<ffffffff8171ec99>] schedule+0x29/0x70
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972436] [<ffffffffa006c6f1>] wait_current_trans.isra.31+0xc1/0x120 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972438] [<ffffffff81089b00>] ? add_wait_queue+0x60/0x60
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972445] [<ffffffffa006e53e>] start_transaction.part.33+0x2de/0x500 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972453] [<ffffffffa0070928>] ? btrfs_writepages+0x28/0x30 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972460] [<ffffffffa006e789>] start_transaction+0x29/0x30 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972467] [<ffffffffa006e9db>] btrfs_start_transaction+0x1b/0x20 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972476] [<ffffffffa007ef4d>] btrfs_sync_file+0x17d/0x2b0 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972479] [<ffffffff811e25fb>] vfs_fsync+0x2b/0x40
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972481] [<ffffffff812b808d>] ecryptfs_fsync+0x3d/0x50
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972482] [<ffffffff811e26dd>] do_fsync+0x5d/0x90
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972484] [<ffffffff811b3da0>] ? SyS_read+0x70/0xa0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972486] [<ffffffff811e2ae3>] SyS_fdatasync+0x13/0x20
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972488] [<ffffffff8172951d>] system_call_fastpath+0x1a/0x1f
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972490] INFO: task BrowserBlocking:3150 blocked for more than 120 seconds.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972490] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972491] BrowserBlocking D 0000000000000002 0 3150 1720 0x00000000
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972493] ffff88004c375d28 0000000000000046 ffff88004c375cd8 ffffffffa0087de2
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972495] ffff88004c375fd8 ffff88004c375fd8 ffff88004c375fd8 0000000000014540
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972496] ffff88013935ddc0 ffff88004c655dc0 ffff88004c375d38 ffff880137378800
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972498] Call Trace:
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972507] [<ffffffffa0087de2>] ? free_extent_buffer.part.40+0x32/0x90 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972509] [<ffffffff8171ec99>] schedule+0x29/0x70
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972518] [<ffffffffa00a41fc>] wait_log_commit.isra.22+0x10c/0x130 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972520] [<ffffffff81089b00>] ? add_wait_queue+0x60/0x60
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972529] [<ffffffffa00a9c72>] btrfs_sync_log+0x442/0x6d0 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972531] [<ffffffff811c9e39>] ? dput+0x49/0x220
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972539] [<ffffffffa007f055>] btrfs_sync_file+0x285/0x2b0 [btrfs]
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972541] [<ffffffff811e25fb>] vfs_fsync+0x2b/0x40
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972543] [<ffffffff812b808d>] ecryptfs_fsync+0x3d/0x50
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972545] [<ffffffff811e26dd>] do_fsync+0x5d/0x90
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972546] [<ffffffff811b3f76>] ? SyS_pwrite64+0x66/0xa0
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972548] [<ffffffff811e2ac0>] SyS_fsync+0x10/0x20
Nov 8 17:27:52 Ubunto4ka kernel: [177440.972550] [<ffffffff8172951d>] system_call_fastpath+0x1a/0x1f
---
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
DistroRelease: Ubuntu 13.10
EcryptfsInUse: Yes
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: linux (not installed)
Tags: saucy
Uname: Linux 3.11.7-031107-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip lpadmin netdev plugdev sambashare sudo

See original description
Revision history for this message
jl451 (jl451) wrote :
jl451 (jl451)
description: updated
Revision history for this message
Brad Figg (brad-figg) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1250828

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
jl451 (jl451) wrote : ProcEnviron.txt

apport information

tags: added: apport-collected saucy
description: updated
jl451 (jl451)
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.12 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-trusty/

Changed in linux (Ubuntu):
importance: Undecided → Medium
status: Confirmed → Incomplete
Revision history for this message
jl451 (jl451) wrote :

In this 10+ days I has 1-2 long freeze, but it was ~30 second, not 120 second, and 15-25+ mini-freeze 1-2 second (but it may be not this trouble)

uname -a
Linux Ubunto4ka 3.12.1-031201-generic #201311201654 SMP Wed Nov 20 21:54:49 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.1-trusty/

Revision history for this message
jl451 (jl451) wrote :
Download full text (7.8 KiB)

freeze was 15+ seconds
uname -a
Linux Ubunto4ka 3.12.2-031202-generic #201311291538 SMP Fri Nov 29 20:39:07 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.2-trusty/

Dec 6 16:12:23 Ubunto4ka kernel: [95836.316381] INFO: task mozStorage #8:8285 blocked for more than 5 seconds.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316385] Tainted: PF C O 3.12.2-031202-generic #201311291538
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316385] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316387] mozStorage #8 D ffffffff81811d80 0 8285 7860 0x00000000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316390] ffff880062f21d28 0000000000000002 ffff8801389e2b40 ffff8800371e0f30
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316392] ffff880062f21fd8 ffff880062f21fd8 ffff880062f21fd8 0000000000014500
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316394] ffff880139378000 ffff88006d025ec0 ffff880062f21d38 ffff8800ba5f8000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316397] Call Trace:
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316402] [<ffffffff8174dbb9>] schedule+0x29/0x70
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316423] [<ffffffffa009d30c>] wait_log_commit.isra.21+0x10c/0x130 [btrfs]
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316427] [<ffffffff8108d2a0>] ? add_wait_queue+0x60/0x60
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316437] [<ffffffffa00a2ed2>] btrfs_sync_log+0x442/0x6d0 [btrfs]
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316440] [<ffffffff811d6ac0>] ? dput+0x20/0x90
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316449] [<ffffffffa0077b9b>] btrfs_sync_file+0x27b/0x2e0 [btrfs]
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316452] [<ffffffff811ef2eb>] vfs_fsync+0x2b/0x40
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316454] [<ffffffff812c827d>] ecryptfs_fsync+0x3d/0x50
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316456] [<ffffffff811ef3cd>] do_fsync+0x5d/0x90
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316457] [<ffffffff811ef7b0>] SyS_fsync+0x10/0x20
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316459] [<ffffffff817587ff>] tracesys+0xe1/0xe6
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316461] INFO: task mozStorage #11:7286 blocked for more than 5 seconds.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316462] Tainted: PF C O 3.12.2-031202-generic #201311291538
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316463] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316464] mozStorage #11 D ffffffff81811d80 0 7286 7860 0x00000000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316466] ffff880008ce3d28 0000000000000002 ffff8801389a4000 ffff880037120c60
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316468] ffff880008ce3fd8 ffff880008ce3fd8 ffff880008ce3fd8 0000000000014500
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316470] ffff88013935dec0 ffff880008a90000 ffff880008ce3d38 ffff8800ba5f8000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316472] Call Trace:
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316474] [<ffffffff8174dbb9>] schedule+0x29/0x70
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316483] [<ffffffffa009d30c>] wait...

Read more...

Revision history for this message
jl451 (jl451) wrote :
Download full text (23.0 KiB)

uname -a

Linux Ubunto4ka 3.12.5-031205-generic #201312120254 SMP Thu Dec 12 07:55:20 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.5-trusty/

cat /var/log/syslog |grep -A 35 blocked

Dec 6 16:12:23 Ubunto4ka kernel: [95836.316381] INFO: task mozStorage #8:8285 blocked for more than 5 seconds.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316385] Tainted: PF C O 3.12.2-031202-generic #201311291538
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316385] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316387] mozStorage #8 D ffffffff81811d80 0 8285 7860 0x00000000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316390] ffff880062f21d28 0000000000000002 ffff8801389e2b40 ffff8800371e0f30
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316392] ffff880062f21fd8 ffff880062f21fd8 ffff880062f21fd8 0000000000014500
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316394] ffff880139378000 ffff88006d025ec0 ffff880062f21d38 ffff8800ba5f8000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316397] Call Trace:
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316402] [<ffffffff8174dbb9>] schedule+0x29/0x70
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316423] [<ffffffffa009d30c>] wait_log_commit.isra.21+0x10c/0x130 [btrfs]
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316427] [<ffffffff8108d2a0>] ? add_wait_queue+0x60/0x60
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316437] [<ffffffffa00a2ed2>] btrfs_sync_log+0x442/0x6d0 [btrfs]
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316440] [<ffffffff811d6ac0>] ? dput+0x20/0x90
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316449] [<ffffffffa0077b9b>] btrfs_sync_file+0x27b/0x2e0 [btrfs]
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316452] [<ffffffff811ef2eb>] vfs_fsync+0x2b/0x40
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316454] [<ffffffff812c827d>] ecryptfs_fsync+0x3d/0x50
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316456] [<ffffffff811ef3cd>] do_fsync+0x5d/0x90
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316457] [<ffffffff811ef7b0>] SyS_fsync+0x10/0x20
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316459] [<ffffffff817587ff>] tracesys+0xe1/0xe6
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316461] INFO: task mozStorage #11:7286 blocked for more than 5 seconds.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316462] Tainted: PF C O 3.12.2-031202-generic #201311291538
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316463] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316464] mozStorage #11 D ffffffff81811d80 0 7286 7860 0x00000000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316466] ffff880008ce3d28 0000000000000002 ffff8801389a4000 ffff880037120c60
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316468] ffff880008ce3fd8 ffff880008ce3fd8 ffff880008ce3fd8 0000000000014500
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316470] ffff88013935dec0 ffff880008a90000 ffff880008ce3d38 ffff8800ba5f8000
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316472] Call Trace:
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316474] [<ffffffff8174dbb9>] schedule+0x29/0x70
Dec 6 16:12:23 Ubunto4ka kernel: [95836.316483] [<ffff...

Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
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