From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Roland McGrath <roland@redhat.com>,
David Howells <dhowells@redhat.com>,
linux-kernel@vger.kernel.org,
Marcelo Tosatti <mtosatti@redhat.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: task blocked for more than 120 seconds
Date: Thu, 4 Nov 2010 17:19:43 +0100 [thread overview]
Message-ID: <20101104161943.GA6520@arch.trippelsdorf.de> (raw)
In-Reply-To: <20101104155826.GC13818@swordfish.minsk.epam.com>
On Thu, Nov 04, 2010 at 05:58:26PM +0200, Sergey Senozhatsky wrote:
> Hello,
> Got the following traces:
>
> [42001.449295] INFO: task openbox:17761 blocked for more than 120 seconds.
> [42001.449303] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> [42001.449311] openbox D 0000000000000003 0 17761 3723 0x00000000
> [42001.449321] ffff88004ce8dc38 0000000000000046 0000000000000000 ffff88004ce8c000
> [42001.449333] ffff88004ce8dfd8 0000000000012040 ffff880133010000 ffff88004ce8dfd8
> [42001.449343] 0000000000012040 0000000000012040 ffff88004ce8dfd8 0000000000012040
> [42001.449354] Call Trace:
> [42001.449369] [<ffffffff814212ff>] schedule_timeout+0x38/0x220
> [42001.449381] [<ffffffff81066f21>] ? mark_held_locks+0x50/0x72
> [42001.449389] [<ffffffff81423dae>] ? _raw_spin_unlock_irq+0x2b/0x59
> [42001.449398] [<ffffffff81036070>] ? get_parent_ip+0x11/0x41
> [42001.449406] [<ffffffff81036132>] ? sub_preempt_count+0x92/0xa5
> [42001.449413] [<ffffffff8142057e>] wait_for_common+0xca/0x144
> [42001.449421] [<ffffffff81038b13>] ? default_wake_function+0x0/0xf
> [42001.449429] [<ffffffff81423e4b>] ? _raw_spin_unlock_irqrestore+0x6f/0x74
> [42001.449436] [<ffffffff81420692>] wait_for_completion+0x18/0x1a
> [42001.449445] [<ffffffff81084808>] stop_one_cpu+0x8c/0xba
These traces look related to:
http://article.gmane.org/gmane.linux.kernel/1055100
Does reverting 34f971f6f7988be4d014eec3e3526bee6d007ffa help in your
case?
--
Markus
next prev parent reply other threads:[~2010-11-04 16:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 15:58 Sergey Senozhatsky
2010-11-04 16:19 ` Markus Trippelsdorf [this message]
2010-11-04 17:32 ` Peter Zijlstra
2010-11-04 18:16 ` Sergey Senozhatsky
2010-11-05 11:14 ` Sergey Senozhatsky
-- strict thread matches above, loose matches on Subject: below --
2010-10-07 23:18 Shawn Bohrer
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