Date: Thu, 11 Jan 2018 21:42:28 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Vince Weaver <vincent.weaver@maine.edu>
Cc: Ingo Molnar <mingo@kernel.org>, linux-kernel@vger.kernel.org,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>
Subject: Re: perf: perf_fuzzer quickly locks up on 4.15-rc7
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On Thu, Jan 11, 2018 at 03:15:16PM -0500, Vince Weaver wrote:
> 
> Not sure if this info helps, but if I make perf_fuzzer *not* create AUX 
> mmap() buffers, I'm unable to reproduce the hangs both on core2 and 
> haswell.

That certainly reduces the amount of code to stare at. Will do so
tomorrow. Thanks!