From: Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.21-rc2-git3 soft lockup detected on CPU#0 (crash dump kernel)
Date: Mon, 05 Mar 2007 11:34:29 +0100 [thread overview]
Message-ID: <1173090869.24738.198.camel@localhost.localdomain> (raw)
In-Reply-To: <20070305080824.GA20583@elte.hu>
On Mon, 2007-03-05 at 09:08 +0100, Ingo Molnar wrote:
> * Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote:
>
> > http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-rc2-git3-kdump/log2.txt
>
> weird. Could you do a dump with SysRq-T, SysRq-Q done /twice/ after each
> other, to see how the system progresses while in this lockup? Plus
> please also try to get a register dump via SysRq-P.
>
> Btw., the task state printout seems busted:
>
> udev_run_devd ? C15B0030 2544 979 853 (L-TLB)
>
> shouldnt that be 'R' instead of the question mark?
? are dead ones,
[<c16191d9>] do_exit+0x6f9/0x6fd
[<c161924d>] sys_exit_group+0x0/0x11
[<c161925c>] sys_exit_group+0xf/0x11
[<c1603e72>] sysenter_past_esp+0x5f/0x99
The interesting part is here:
1 lock held by udevd/918:
#0: (&mm->mmap_sem){----}, at: [<c161135b>] do_page_fault+0x150/0x50d
But udevd/918 is nowhere in the sysrq-t output.
tglx
next prev parent reply other threads:[~2007-03-05 10:28 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-03 23:31 Michal Piotrowski
2007-03-04 14:23 ` Thomas Gleixner
2007-03-04 14:36 ` Michal Piotrowski
2007-03-04 15:37 ` Thomas Gleixner
2007-03-04 16:28 ` Michal Piotrowski
2007-03-04 16:40 ` Thomas Gleixner
2007-03-04 16:47 ` Michal Piotrowski
2007-03-04 17:03 ` Thomas Gleixner
2007-03-04 17:15 ` Michal Piotrowski
2007-03-04 17:44 ` Thomas Gleixner
2007-03-05 8:08 ` Ingo Molnar
2007-03-05 10:34 ` Thomas Gleixner [this message]
2007-03-05 10:31 ` Ingo Molnar
2007-03-05 11:47 ` Michal Piotrowski
2007-03-05 11:51 ` Ingo Molnar
2007-03-05 12:04 ` Michal Piotrowski
2007-03-05 12:21 ` Michal Piotrowski
2007-03-05 12:17 ` Ingo Molnar
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