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Date: Mon, 8 Aug 2016 22:12:19 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: perf: hard fuzzer crash on 4.8-rc1
Message-ID: <20160808201219.GE30192@twins.programming.kicks-ass.net>
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On Mon, Aug 08, 2016 at 03:57:05PM -0400, Vince Weaver wrote:
> On Mon, 8 Aug 2016, Peter Zijlstra wrote:
> 
> > On Mon, Aug 08, 2016 at 01:57:28PM -0400, Vince Weaver wrote:
> > > 
> > > [  637.250130] BUG: unable to handle kernel
> > > 
> > > About 10 times of triggering this, this is all I get.  Machine is fairly
> > > thoroughly locked at that point.
> > > 
> > > Any advice on how to debug this more?
> > 
> > I have this pending:
> > 
> >  lkml.kernel.org/r/20160804123724.GN6862@twins.programming.kicks-ass.net
> > 
> > If that's not it, I'll go prod tomorrow.
> 
> yes, that patch seems to fix the issue.

Awesome, I'll add a tested-by from you.