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From: Vince Weaver <vincent.weaver@maine.edu>
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Date: Tue, 9 Jan 2018 08:44:23 -0500 (EST)
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To: Peter Zijlstra <peterz@infradead.org>
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        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 Tue, 9 Jan 2018, Peter Zijlstra wrote:

> So remind me again, how are you running that fuzzer? I'm running
> ./fast_repro99.sh as root.

I'm running ./fast_repro98.sh on a regular haswell machine with paranoid 
set to "0".

I'll try your patch and see if it makes a difference.

I can also try on a few other machines.  I started setting up a fuzzing 
cluster for this kind of thing but the multiport serial card I got for 
logging the serial consoles crashes fairly quickly under load and I 
haven't had time to track that down.

Vince