linux-kernel - Re: Processes spinning forever, apparently in lock_timer

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Message-ID: <20070809095943.GA7763@kobayashi-maru.wspse.de>
Date:	Thu, 9 Aug 2007 11:59:43 +0200
From:	Matthias Hensler <matthias@...se.de>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Chuck Ebbert <cebbert@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Processes spinning forever, apparently in lock_timer_base()?

On Sat, Aug 04, 2007 at 10:44:26AM +0200, Matthias Hensler wrote:
> On Fri, Aug 03, 2007 at 11:34:07AM -0700, Andrew Morton wrote:
> [...]
> I am also willing to try the patch posted by Richard.

I want to give some update here:

1. We finally hit the problem on a third system, with a total different
   setup and hardware. However, again high I/O load caused the problem
   and the affected filesystems were mounted with noatime.

2. I installed a recompiled kernel with just the two line patch from
   Richard Kennedy (http://lkml.org/lkml/2007/8/2/89). That system has 5
   days uptime now and counting. I believe the patch fixed the problem.
   However, I will continue running "vmstat 1" and the endless loop of
   "cat /proc/meminfo", just in case I am wrong.

Regards,
Matthias

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