From: Vince Weaver <vincent.weaver@maine.edu>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
linux-kernel@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andy Lutomirski <luto@kernel.org>
Subject: Re: perf: fuzzer causes stack going in wrong direction warnings
Date: Fri, 4 May 2018 13:00:27 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.2.21.1805041256410.6376@macbook-air> (raw)
In-Reply-To: <20180504162557.iodmglq3duomz6c2@treble>
On Fri, 4 May 2018, Josh Poimboeuf wrote:
> Also, any tips for reproducing this locally? I cloned the perf fuzzer
> github. Is it as simple as just "make" and "./run_tests.sh"?
run_tests only runs the perf_event regressiong tests.
To run the fuzzer, enter the "fuzzer" directory and either run
"./fast_repro98.sh"
which will run the fuzzer repeatedly, or you can instead just run
./perf_fuzzer
but that sometimes eventually errors out if it manages to get stuck in a
signal storm.
While running on haswell and skylake machines the WARNINGs trigger fairly
quickly (within minutes usually).
You might also encounter a handful of other known kernel warnings which
I've reported in the past and usually just ignore.
Vince
next prev parent reply other threads:[~2018-05-04 17:00 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 16:12 perf: perf_fuzzer quickly locks up on 4.15-rc7 Vince Weaver
2018-01-08 17:30 ` Ingo Molnar
2018-01-08 20:29 ` Vince Weaver
2018-01-09 10:25 ` Peter Zijlstra
2018-01-09 13:26 ` Peter Zijlstra
2018-01-09 13:36 ` Peter Zijlstra
2018-01-09 13:44 ` Vince Weaver
2018-01-09 15:12 ` Peter Zijlstra
2018-01-09 15:24 ` Vince Weaver
2018-01-09 15:33 ` Peter Zijlstra
2018-01-09 15:56 ` Vince Weaver
2018-01-09 16:05 ` Peter Zijlstra
2018-01-09 17:07 ` Josh Poimboeuf
2018-01-11 5:25 ` Josh Poimboeuf
2018-01-11 19:00 ` Vince Weaver
2018-01-11 19:21 ` Josh Poimboeuf
2018-01-11 19:50 ` Peter Zijlstra
2018-01-11 19:57 ` Vince Weaver
2018-01-11 20:43 ` Vince Weaver
2018-05-01 13:29 ` perf: fuzzer causes stack going in wrong direction warnings Vince Weaver
2018-05-01 13:58 ` Josh Poimboeuf
2018-05-01 19:59 ` Vince Weaver
2018-05-01 22:04 ` Josh Poimboeuf
2018-05-02 20:50 ` Josh Poimboeuf
2018-05-04 14:35 ` Vince Weaver
2018-05-04 16:25 ` Josh Poimboeuf
2018-05-04 17:00 ` Vince Weaver [this message]
2018-05-05 15:38 ` Vince Weaver
2018-05-05 18:29 ` Josh Poimboeuf
2018-05-06 23:49 ` Josh Poimboeuf
2018-05-10 13:48 ` Peter Zijlstra
2018-05-10 14:27 ` Josh Poimboeuf
2018-05-10 23:16 ` Josh Poimboeuf
2018-01-09 16:16 ` perf: perf_fuzzer quickly locks up on 4.15-rc7 Ingo Molnar
2018-01-09 16:20 ` Peter Zijlstra
2018-01-09 17:18 ` Vince Weaver
2018-01-10 15:28 ` Vince Weaver
2018-01-09 16:14 ` Peter Zijlstra
2018-01-09 17:53 ` Steven Rostedt
2018-01-09 18:02 ` Peter Zijlstra
2018-01-09 18:09 ` Steven Rostedt
2018-01-09 19:53 ` Peter Zijlstra
2018-01-11 9:13 ` Peter Zijlstra
2018-01-11 15:26 ` Vince Weaver
2018-01-11 15:38 ` Peter Zijlstra
2018-01-11 16:41 ` Vince Weaver
2018-01-11 16:58 ` Vince Weaver
2018-01-11 17:03 ` Peter Zijlstra
2018-01-11 18:04 ` Vince Weaver
2018-01-11 18:20 ` Vince Weaver
2018-01-11 19:01 ` Peter Zijlstra
2018-01-11 19:11 ` Peter Zijlstra
2018-01-11 20:15 ` Vince Weaver
2018-01-11 20:40 ` Vince Weaver
2018-01-11 20:57 ` Peter Zijlstra
2018-01-12 19:48 ` Vince Weaver
2018-01-11 20:42 ` Peter Zijlstra
2018-01-11 15:29 ` Peter Zijlstra
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