linux-kernel - Re: perf: perf_fuzzer quickly locks up on 4.15-rc7

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.DEB.2.21.1801111540130.23914@macbook-air>
Date:   Thu, 11 Jan 2018 15:40:44 -0500 (EST)
From:   Vince Weaver <vincent.weaver@...ne.edu>
To:     Vince Weaver <vincent.weaver@...ne.edu>
cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: perf: perf_fuzzer quickly locks up on 4.15-rc7

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