linux-kernel - Re: perf sw_event related lockup

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Message-ID: <alpine.DEB.2.10.1311181142380.18020@vincent-weaver-1.um.maine.edu>
Date:	Mon, 18 Nov 2013 11:44:25 -0500 (EST)
From:	Vince Weaver <vincent.weaver@...ne.edu>
To:	Stephane Eranian <eranian@...gle.com>
cc:	Peter Zijlstra <peterz@...radead.org>,
	Vince Weaver <vincent.weaver@...ne.edu>,
	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Subject: Re: perf sw_event related lockup

On Mon, 18 Nov 2013, Stephane Eranian wrote:

> What's the config for this test?
> Need to host CPU type and the event config.
> Otherwise there is not much I can do with the crash dump.

It's 3.12, on a core2 machine.

Sadly I don't have the event config.  To reproduce I start my perf_fuzzer 
running and typically it will hit the error/lockup within an hour or so 
of fuzzing assuming it doesn't hit one of the other outstanding bugs 
first.

I can probably narrow it down but that involves a lot of luck as well as a 
lot of time and I might not get a chance to do so until next month at the 
earliest.

Vince
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