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Date:	Mon, 20 Oct 2014 10:48:21 -0400 (EDT)
From:	Vince Weaver <vincent.weaver@...ne.edu>
To:	Vince Weaver <vincent.weaver@...ne.edu>
cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: Re: perf: 3.17 another perf_fuzzer lockup

On Mon, 20 Oct 2014, Vince Weaver wrote:

> nope.  Wasted 3 days trying to bisect this.  Something during the 3.17 
> merge window changed enough to make the perf_fuzzer results 
> non-deterministic, and that makes it nearly impossibe to reproduce the
> issue properly.  Ugh.  I might be reduced to sprinkling printks around 
> unless anyone chimes in with better advice.

yes, so 3 different bisects from 3 different starting points and it 
bisects each time to:

	commit 29b88e23a9212136d39b0161a39afe587d0170a5
	Merge: 2521129 4e3a25b
	Author: Linus Torvalds <torvalds@...ux-foundation.org>
	Date:   Mon Aug 4 18:34:04 2014 -0700

    	Merge tag 'driver-core-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/dri
    
	Pull driver core updates from Greg KH:
		"Here's the big driver-core pull request for 3.17-rc1.

which makes no sense at all :(

Vince
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