On Mon, May 16, 2011 at 2:14 AM, Uwe Schuerkamp
<uwe.schuerkamp AT nionex DOT net> wrote:
> Hi folks,
>
> for a couple of weeks now I occasionally see messages like these in
> the kernel log or our bacula server (bacula 5.0.3 compiled from source
> on centos 5.6 64bit):
>
> ######################################################################
> INFO: task bacula-sd:12467 blocked for more than 120 seconds.
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
> message.
> bacula-sd     D ffff81000102e4a0     0 12467      1
> 27666 (NOTLB)
>  ffff810248521cd8 0000000000000086 ffff81042e000088 ffff810248521db8
>  0000000000000001 000000000000000a ffff810428a1e7e0 ffff81042fea0100
>  0001ce40568d4933 00000000000224fb ffff810428a1e9c8 000000058002e2e3
> Call Trace:
>  [<ffffffff8006315f>] wait_for_completion+0x79/0xa2
>  [<ffffffff8008e437>] default_wake_function+0x0/0xe
>  [<ffffffff8829fe85>] :st:st_do_scsi+0x1f4/0x221
>  [<ffffffff882a098c>] :st:st_int_ioctl+0x5ea/0x923
>  [<ffffffff882a2ab2>] :st:st_ioctl+0xaa5/0xe1f
>  [<ffffffff800a28f3>] autoremove_wake_function+0x0/0x2e
>  [<ffffffff80042426>] do_ioctl+0x55/0x6b
>  [<ffffffff800303df>] vfs_ioctl+0x457/0x4b9
>  [<ffffffff800b9646>] audit_syscall_entry+0x1a4/0x1cf
>  [<ffffffff8004c8fc>] sys_ioctl+0x59/0x78
>  [<ffffffff8005d28d>] tracesys+0xd5/0xe0
> ######################################################################
>
> Should I worry about these, and if so, what can be done to fix this
> issue?
>

Maybe do what it says.

echo 0 > /proc/sys/kernel/hung_task_timeout_secs

John

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