From: "Pekka Enberg" <penberg@cs.helsinki.fi>
To: Zhao Forrest <forrest.zhao@gmail.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: Why kmem_cache_free occupy CPU for more than 10 seconds?
Date: Wed, 11 Apr 2007 09:53:53 +0300 [thread overview]
Message-ID: <84144f020704102353r7dcc3538u2e34237d3496630e@mail.gmail.com> (raw)
In-Reply-To: <ac8af0be0704102317q50fe72b1m9e4825a769a63963@mail.gmail.com>
On 4/11/07, Zhao Forrest <forrest.zhao@gmail.com> wrote:
> We're using RHEL5 with kernel version 2.6.18-8.el5.
> When doing a stress test on raw device for about 3-4 hours, we found
> the soft lockup message in dmesg.
> I know we're not reporting the bug on the latest kernel, but does any
> expert know if this is the known issue in old kernel? Or why
> kmem_cache_free occupy CPU for more than 10 seconds?
Sounds like slab corruption. CONFIG_DEBUG_SLAB should tell you more.
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next prev parent reply other threads:[~2007-04-11 6:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-11 6:17 Zhao Forrest
2007-04-11 6:53 ` Pekka Enberg [this message]
2007-04-11 9:14 ` Zhao Forrest
2007-04-11 9:53 ` Paul Jackson
2007-04-11 10:06 ` Peter Zijlstra
2007-04-11 10:10 ` Zhao Forrest
2007-04-11 10:16 ` Peter Zijlstra
2007-04-11 16:23 ` Chuck Ebbert
2007-04-11 16:44 ` Badari Pulavarty
2007-04-11 9:53 ` Zhao Forrest
2007-04-11 10:38 ` Peter Zijlstra
2007-04-11 16:35 ` Ken Chen
2007-04-12 6:17 ` Zhao Forrest
2007-04-11 22:30 ` Andrew Morton
2007-04-12 7:39 ` Peter Zijlstra
2007-04-12 7:55 ` Andrew Morton
2007-04-12 9:19 ` Peter Zijlstra
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