linux-kernel - Re: OOPS in perf_mmap

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Message-ID: <alpine.DEB.2.10.1305290915400.2479@vincent-weaver-1.um.maine.edu>
Date:	Wed, 29 May 2013 09:17:13 -0400 (EDT)
From:	Vince Weaver <vincent.weaver@...ne.edu>
To:	Peter Zijlstra <peterz@...radead.org>
cc:	Vince Weaver <vincent.weaver@...ne.edu>,
	Al Viro <viro@...iv.linux.org.uk>,
	linux-kernel@...r.kernel.org, Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	trinity@...r.kernel.org
Subject: Re: OOPS in perf_mmap_close()

On Wed, 29 May 2013, Peter Zijlstra wrote:

> Hurm.. I don't suppose you have an easy reproducer handy eh? I'll go
> stare at it. At least the current state is better than before, but
> clearly we're not quite there yet.

I've been working on a reproducible test case.  Simple modifications to 
the existing testcase don't seem to trigger things.  I have a 100k-300k 
syscall trace that triggers things, I'm working on trying to get that down 
to something reasonable.

Vince
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