linux-kernel - Re: perf: fuzzer gets CPU stuck in perf

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: <20150219165732.GG21418@twins.programming.kicks-ass.net>
Date:	Thu, 19 Feb 2015 17:57:32 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Vince Weaver <vincent.weaver@...ne.edu>
Cc:	linux-kernel@...r.kernel.org, Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: perf: fuzzer gets CPU stuck in perf_callchain()

On Thu, Feb 19, 2015 at 11:54:40AM -0500, Vince Weaver wrote:
> 
> Another bug found by the perf_fuzzer().  I think this one is different
> than the one I sent the other day, it looks like something is going
> very wrong in perf_callchain().
> 
> This one is reasonably reproducible, if there's any extra debugging that I 
> can add.  This is on a Haswell machine with git as of a few days ago.

Aw man, and I had such good hopes with you saying it took 4 days to find
problems :/

I'll try and get some time to stare at both.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/