Your message dated Sat, 23 Feb 2013 15:55:33 +0100
with message-id <[email protected]>
and subject line not a bug but a new feature
has caused the Debian Bug report #692567,
regarding INFO: task blocked for more than 120 seconds when access to Logical
Volume
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact [email protected]
immediately.)
--
692567: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692567
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: base
Severity: normal
I have a script who makes backup of virtual machine each weeks. I create
snapshot of volume group, then I
backup it with dd. Sometimes, I got this message when I access to volume
group (lvcreate, lvdisplay ...).
Lvm command lock up in D state and I can't re-use lvm it until reboot.
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888359] INFO: task
lvdisplay:8411 blocked for more than 120 seconds.
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888413] "echo 0 >
/proc/sys/kernel/hung_task_
timeout_secs" disables this message.
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888464] lvdisplay D
0000000000000000 0 8411 8165 0x00000000
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888471] ffff88007ff93f90
0000000000000286 0000000000000000 0000000000000000
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888479] ffff880071222608
000000006c864f69 000000000000f9e0 ffff880040413fd8
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888487] 0000000000015780
0000000000015780 ffff88007c283170 ffff88007c283468
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888495] Call Trace:
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888504] [<ffffffff8102ddc4>] ?
pvclock_clocksource_read+0x3a/0x8b
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888513] [<ffffffff8130cdda>] ?
io_schedule+0x73/0xb7
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888519] [<ffffffff81115489>] ?
__blockdev_direct_IO+0x910/0xa60
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888525] [<ffffffff81113946>] ?
blkdev_direct_IO+0x45/0x4a
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888531] [<ffffffff81112c5b>] ?
blkdev_get_blocks+0x0/0x8b
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888537] [<ffffffff810b6837>] ?
generic_file_aio_read+0xf6/0x536
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888554] [<ffffffffa01c0b05>] ?
dm_blk_open+0x10/0x5f [dm_mod]
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888559] [<ffffffff81114001>] ?
__blkdev_get+0x29c/0x342
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888564] [<ffffffff811140ae>] ?
blkdev_open+0x0/0x96
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888568] [<ffffffff81114115>] ?
blkdev_open+0x67/0x96
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888575] [<ffffffff810f00dd>] ?
do_sync_read+0xce/0x113
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888580] [<ffffffff810f342f>] ?
cp_new_stat+0xe9/0xfc
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888586] [<ffffffff81066092>] ?
autoremove_wake_function+0x0/0x2e
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888591] [<ffffffff81112ef6>] ?
block_ioctl+0x38/0x3c
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888597] [<ffffffff810fbf3e>] ?
vfs_ioctl+0x21/0x6c
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888602] [<ffffffff810fc48c>] ?
do_vfs_ioctl+0x48d/0x4cb
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888608] [<ffffffff810f0b00>] ?
vfs_read+0xa6/0xff
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888613] [<ffffffff810f0c15>] ?
sys_read+0x45/0x6e
Nov 6 22:07:19 pack-xen03 kernel: [1005246.888619] [<ffffffff81011b42>] ?
system_call_fastpath+0x16/0x1b
-- System Information:
Debian Release: 6.0.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-xen-amd64 (SMP w/24 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
--- End Message ---
--- Begin Message ---
Hi,
this is not a bug, but a new feature: the kernel is now telling you that some
task has been blocked for more than 2min, while this used to happen all the
time, just silently.
cheers,
Holger
--- End Message ---
