[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/588046
Title:
"task blocked for more than 120 seconds" freezes system in Lucid: xfs
Status in “linux” package in Ubuntu:
Expired
Bug description:
I get "INFO: task xfsdatad/0:3344 blocked for more than 120 seconds." with
subsequent freeze when doing disk I/O on a single or two xfs partitions.
This is yet another variant of bug #494476, where emphasis is on ext4 and
possible other processes causing the bug to appear. Reading this and bug
#276476, my impression is that it is triggered by disk I/O, no matter the
filesystem.
In on instance, I tried to unrar a large file. After processing 80% of the
archive, the process got stuck, the filesystem became unusable ("ls" on other
console freezing as well), only reboot helped. Of course, the simple 'shutdown'
commend doesn't finish, so that's actually a hard reset.
The second instance was during a copy of several Gig from one xfs partition
to another. Same symptoms.
Given that only a reset resolves the situation, this might eventually
lead to damaged file systems and data loss.
This system has been upgraded to 10.04 via 9.10 from 9.04. The problem
_did not_ occur under 9.04.
-----------------------------------------------------------
ay 31 09:55:22 tirion kernel: [ 2160.252098] INFO: task xfsdatad/0:3344
blocked for more than 120 seconds.
May 31 09:55:22 tirion kernel: [ 2160.252108] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 31 09:55:22 tirion kernel: [ 2160.252117] xfsdatad/0 D 0001674e 0
3344 2 0x00000000
May 31 09:55:22 tirion kernel: [ 2160.252132] f5205ec4 00000046 f5d72000
0001674e 00000000 c0846740 f605b5ec c0846740
May 31 09:55:22 tirion kernel: [ 2160.252153] 6b8e4857 000001d5 c0846740
c0846740 f605b5ec c0846740 c0846740 f6668a80
May 31 09:55:22 tirion kernel: [ 2160.252173] 00000000 000001d5 f605b340
f5205ef8 f605b340 f5b890e4 f5205ef0 c058b315
May 31 09:55:22 tirion kernel: [ 2160.252192] Call Trace:
May 31 09:55:22 tirion kernel: [ 2160.252215] [<c058b315>]
rwsem_down_failed_common+0x75/0x1a0
May 31 09:55:22 tirion kernel: [ 2160.252228] [<c058b45d>]
rwsem_down_write_failed+0x1d/0x30
May 31 09:55:22 tirion kernel: [ 2160.252241] [<c058b4f6>]
call_rwsem_down_write_failed+0x6/0x10
May 31 09:55:22 tirion kernel: [ 2160.252252] [<c058aa14>] ?
down_write+0x24/0x30
May 31 09:55:22 tirion kernel: [ 2160.252315] [<f8dfa2c0>]
xfs_ilock+0x70/0x90 [xfs]
May 31 09:55:22 tirion kernel: [ 2160.252366] [<f8e1b180>]
xfs_setfilesize+0x30/0x70 [xfs]
May 31 09:55:22 tirion kernel: [ 2160.252415] [<f8e1b413>]
xfs_end_bio_delalloc+0x13/0x20 [xfs]
May 31 09:55:22 tirion kernel: [ 2160.252466] [<c016369e>]
run_workqueue+0x8e/0x150
May 31 09:55:22 tirion kernel: [ 2160.252516] [<f8e1b400>] ?
xfs_end_bio_delalloc+0x0/0x20 [xfs]
May 31 09:55:22 tirion kernel: [ 2160.252529] [<c01637e4>]
worker_thread+0x84/0xe0
May 31 09:55:22 tirion kernel: [ 2160.252542] [<c0167740>] ?
autoremove_wake_function+0x0/0x50
May 31 09:55:22 tirion kernel: [ 2160.252554] [<c0163760>] ?
worker_thread+0x0/0xe0
May 31 09:55:22 tirion kernel: [ 2160.252565] [<c01674b4>] kthread+0x74/0x80
May 31 09:55:22 tirion kernel: [ 2160.252575] [<c0167440>] ? kthread+0x0/0x80
May 31 09:55:22 tirion kernel: [ 2160.252587] [<c0104087>]
kernel_thread_helper+0x7/0x10
May 31 09:55:22 tirion kernel: [ 2160.252602] INFO: task loop1:4127 blocked
for more than 120 seconds.
May 31 09:55:22 tirion kernel: [ 2160.252609] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 31 09:55:22 tirion kernel: [ 2160.252617] loop1 D 004206d7 0
4127 2 0x00000000
May 31 09:55:22 tirion kernel: [ 2160.252630] d296bde8 00000046 f5fa0000
004206d7 00000000 c0846740 f605cf8c c0846740
May 31 09:55:22 tirion kernel: [ 2160.252649] 94b6508d 000001d5 c0846740
c0846740 f605cf8c c0846740 c0846740 f6668a80
May 31 09:55:22 tirion kernel: [ 2160.252669] 00000000 000001d5 f605cce0
c1c08740 f605cce0 d296be30 d296bdf8 c058998a
May 31 09:55:22 tirion kernel: [ 2160.252688] Call Trace:
May 31 09:55:22 tirion kernel: [ 2160.252699] [<c058998a>]
io_schedule+0x3a/0x60
May 31 09:55:22 tirion kernel: [ 2160.252711] [<c01c9f2d>]
sync_page+0x3d/0x50
May 31 09:55:22 tirion kernel: [ 2160.252721] [<c058a12d>]
__wait_on_bit+0x4d/0x70
May 31 09:55:22 tirion kernel: [ 2160.252731] [<c01c9ef0>] ?
sync_page+0x0/0x50
May 31 09:55:22 tirion kernel: [ 2160.252742] [<c01ca151>]
wait_on_page_bit+0x91/0xa0
May 31 09:55:22 tirion kernel: [ 2160.252754] [<c0167790>] ?
wake_bit_function+0x0/0x50
May 31 09:55:22 tirion kernel: [ 2160.252766] [<c01ca3f1>]
wait_on_page_writeback_range+0xa1/0x110
May 31 09:55:22 tirion kernel: [ 2160.252780] [<c01ca5f8>]
filemap_write_and_wait_range+0x78/0x80
May 31 09:55:22 tirion kernel: [ 2160.252795] [<c022a0a2>]
vfs_fsync_range+0x62/0xc0
May 31 09:55:22 tirion kernel: [ 2160.252807] [<c022a1b3>]
vfs_fsync+0x33/0x40
May 31 09:55:22 tirion kernel: [ 2160.252820] [<c03f0fa1>]
do_bio_filebacked+0xf1/0x160
May 31 09:55:22 tirion kernel: [ 2160.252830] [<c058955c>] ?
schedule+0x44c/0x840
May 31 09:55:22 tirion kernel: [ 2160.252845] [<c012a438>] ?
default_spin_lock_flags+0x8/0x10
May 31 09:55:22 tirion kernel: [ 2160.252857] [<c058b5ef>] ?
_spin_lock_irqsave+0x2f/0x50
May 31 09:55:22 tirion kernel: [ 2160.252868] [<c01678af>] ?
finish_wait+0x4f/0x70
May 31 09:55:22 tirion kernel: [ 2160.252879] [<c03f10b6>]
loop_thread+0xa6/0x210
May 31 09:55:22 tirion kernel: [ 2160.252891] [<c0167740>] ?
autoremove_wake_function+0x0/0x50
May 31 09:55:22 tirion kernel: [ 2160.252901] [<c03f1010>] ?
loop_thread+0x0/0x210
May 31 09:55:22 tirion kernel: [ 2160.252912] [<c01674b4>] kthread+0x74/0x80
May 31 09:55:22 tirion kernel: [ 2160.252922] [<c0167440>] ? kthread+0x0/0x80
May 31 09:55:22 tirion kernel: [ 2160.252934] [<c0104087>]
kernel_thread_helper+0x7/0x10
May 31 09:55:22 tirion kernel: [ 2160.252944] INFO: task kdmflush:4141
blocked for more than 120 seconds.
May 31 09:55:22 tirion kernel: [ 2160.252950] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 31 09:55:22 tirion kernel: [ 2160.252958] kdmflush D 000337e4 0
4141 2 0x00000000
May 31 09:55:22 tirion kernel: [ 2160.252971] d29a9edc 00000046 f5f18000
000337e4 00000000 c0846740 f692e92c c0846740
May 31 09:55:22 tirion kernel: [ 2160.252991] 9094f856 000001d5 c0846740
c0846740 f692e92c c0846740 c0846740 f63ebc40
May 31 09:55:22 tirion kernel: [ 2160.253010] 00000000 000001d5 f692e680
c1c08740 f692e680 00000002 d29a9eec c058998a
May 31 09:55:22 tirion kernel: [ 2160.253029] Call Trace:
...
several more traces
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-22-generic 2.6.32-22.33
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: roth 2992 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with STAC9750,51 at irq 5'
Mixer name : 'SigmaTel STAC9750,51'
Components : 'AC97a:83847650'
Controls : 36
Simple ctrls : 23
Date: Mon May 31 22:38:06 2010
HibernationDevice: RESUME=/dev/sda5
MachineType: Dell Computer Corporation Inspiron 8600
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: root=UUID=ec7ab08b-f34d-4d61-8a03-4f9035425956 ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
SourcePackage: linux
WpaSupplicantLog:
dmi.bios.date: 01/12/2004
dmi.bios.vendor: Dell Computer Corporation
dmi.bios.version: A04
dmi.board.name: 0P3490
dmi.board.vendor: Dell Computer Corporation
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Computer Corporation
dmi.modalias:
dmi:bvnDellComputerCorporation:bvrA04:bd01/12/2004:svnDellComputerCorporation:pnInspiron8600:pvr:rvnDellComputerCorporation:rn0P3490:rvr:cvnDellComputerCorporation:ct8:cvr:
dmi.product.name: Inspiron 8600
dmi.sys.vendor: Dell Computer Corporation
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