linux-kernel - Re: perf_fuzzer crash on pentium 4

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Message-ID: <20140515220935.GV28328@moon>
Date:	Fri, 16 May 2014 02:09:35 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Vince Weaver <vincent.weaver@...ne.edu>
Cc:	Don Zickus <dzickus@...hat.com>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: perf_fuzzer crash on pentium 4

On Thu, May 15, 2014 at 01:31:16AM -0400, Vince Weaver wrote:
> On Thu, 15 May 2014, Cyrill Gorcunov wrote:
> 
> > So I'm experiencing the same problem on latest -tip + my patches applied.
> 
> glad it's not just me.
> 
> I find the problem to be reproducible and so in theory it might be 
> possible to generate a small reproducing test case.  
> I meant to do that already but I got distracted by other things.

Please ping me once you manage to create such case.

> 
> I think I managed to have a trace I recorded and replayed recreate the 
> issue, but narrowing things down from a 2000+ syscall trace can be 
> tedious.

I imagine :/

> 
> Let me know if you have any other issues with the perf_fuzzer.

Sure. Because the testing machine I'm having is connected remotely
when hang happens the only notification I get is unresposible
ssh connection, sigh...
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