linux-kernel - Re: OOPS in perf_mmap

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Message-ID: <alpine.DEB.2.10.1306051151570.6484@vincent-weaver-1.um.maine.edu>
Date:	Wed, 5 Jun 2013 11:54:52 -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 Mon, 3 Jun 2013, Peter Zijlstra wrote:

> Seems to cure it... I'm going to let it run over night.

[sorry for the delay in testing, was at the hospital waiting for
 a new baby, and the free wi-fi had the ssh port blocked]

I'm running 3.10-rc4 with your patch plus the 3-line fixup applied and my 
various tests are solid so far.

It would be nice to get this applied, without the patch it's trivial to 
oops/lock any kernel going back to 3.2 and probably earlier (I haven't 
tested older than 3.2 yet).

Vince
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