From: Peter Zijlstra <peterz@infradead.org>
To: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: perf: fuzzer gets CPU stuck in perf_callchain()
Date: Thu, 19 Feb 2015 17:57:32 +0100 [thread overview]
Message-ID: <20150219165732.GG21418@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <alpine.DEB.2.11.1502191149140.28751@vincent-weaver-1.umelst.maine.edu>
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.
next prev parent reply other threads:[~2015-02-19 16:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-19 16:54 perf: fuzzer gets CPU stuck in perf_callchain() Vince Weaver
2015-02-19 16:57 ` Peter Zijlstra [this message]
2015-02-19 17:05 ` Vince Weaver
2015-02-19 17:24 ` Vince Weaver
2015-02-19 17:32 ` Vince Weaver
2015-02-19 17:03 ` Peter Zijlstra
2015-02-24 3:33 ` Vince Weaver
2015-03-23 12:23 ` [tip:perf/urgent] perf: Fix irq_work 'tail' recursion tip-bot for Peter Zijlstra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150219165732.GG21418@twins.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=acme@kernel.org \
--cc=jolsa@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=paulus@samba.org \
--cc=rostedt@goodmis.org \
--cc=vincent.weaver@maine.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.