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Subject: Re: Why kmem_cache_free occupy CPU for more than 10 seconds?
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Paul Jackson <pj@sgi.com>
Cc: Zhao Forrest <forrest.zhao@gmail.com>, penberg@cs.helsinki.fi,
       linux-mm@kvack.org, linux-kernel@vger.kernel.org
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Date: Wed, 11 Apr 2007 12:06:16 +0200
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On Wed, 2007-04-11 at 02:53 -0700, Paul Jackson wrote:
> I'm confused - which end of ths stack is up?
> 
> cpuset_exit doesn't call do_exit, rather it's the other
> way around.  But put_files_struct doesn't call do_exit,
> rather do_exit calls __exit_files calls put_files_struct.

I'm guessing its x86_64 which generates crap traces.