From: Vince Weaver <vincent.weaver@maine.edu>
Date: Thu, 11 Jan 2018 15:40:44 -0500 (EST)
To: Vince Weaver <vincent.weaver@maine.edu>
cc: Peter Zijlstra <peterz@infradead.org>,
        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>
Subject: Re: perf: perf_fuzzer quickly locks up on 4.15-rc7
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On Thu, 11 Jan 2018, 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.

Confirmed, I can crash the system without the fuzzer, just by doing

	perf record --per-thread -e intel_bts// /bin/ls

on my haswell system.

Vince