From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks
Date: Wed, 06 Feb 2008 15:50:02 +0100 [thread overview]
Message-ID: <1202309402.6310.0.camel@lappy> (raw)
In-Reply-To: <20080205164626.f9c920e0.akpm@linux-foundation.org>
On Tue, 2008-02-05 at 16:46 -0800, Andrew Morton wrote:
> On Fri, 25 Jan 2008 22:59:17 GMT
> Linux Kernel Mailing List <linux-kernel@vger.kernel.org> wrote:
>
> > Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82a1fcb90287052aabfa235e7ffc693ea003fe69
> > Commit: 82a1fcb90287052aabfa235e7ffc693ea003fe69
> > Parent: d0d23b5432fe61229dd3641c5e94d4130bc4e61b
> > Author: Ingo Molnar <mingo@elte.hu>
> > AuthorDate: Fri Jan 25 21:08:02 2008 +0100
> > Committer: Ingo Molnar <mingo@elte.hu>
> > CommitDate: Fri Jan 25 21:08:02 2008 +0100
> >
> > softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks
>
> One of my test boxes (an 8-way x86_64 software-development thing from Intel
> - I'm not sure what's inside it) no longer powers itself off when I run `halt
> -pfn'.
>
> During bisection I found two different problems. Sometimes the machine
> wouldn't power off at all. Other times it would power off after a pause of
> around twenty seconds.
>
> Bisection indicates that this commit is what caused the 20-second pause.
> It could be that some later commit caused the infinity-second pause.
Does that kernel have:
commit ed50d6cbc394cd0966469d3e249353c9dd1d38b9
Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Sat Feb 2 00:23:08 2008 +0100
debug: softlockup looping fix
next prev parent reply other threads:[~2008-02-06 14:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200801252259.m0PMxHmD012059@hera.kernel.org>
2008-02-06 0:46 ` softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks Andrew Morton
2008-02-06 14:50 ` Peter Zijlstra [this message]
2008-02-06 18:05 ` Andrew Morton
2008-02-07 0:04 ` Ingo Molnar
2008-02-07 0:31 ` Andrew Morton
2008-02-07 0:47 ` Andrew Morton
2008-02-07 0:51 ` Ingo Molnar
2008-02-07 1:12 ` Andrew Morton
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