From: Peter Zijlstra <peterz@infradead.org>
To: Will Deacon <will.deacon@arm.com>
Cc: Drew Richardson <drew.richardson@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Arnaldo <acme@redhat.com>, Pawel Moll <Pawel.Moll@arm.com>,
Wade Cherry <Wade.Cherry@arm.com>
Subject: Re: Perf Oops on 3.14-rc2
Date: Tue, 18 Feb 2014 11:54:34 +0100 [thread overview]
Message-ID: <20140218105434.GO14089@laptop.programming.kicks-ass.net> (raw)
In-Reply-To: <20140218101831.GB4178@mudshark.cambridge.arm.com>
On Tue, Feb 18, 2014 at 10:18:31AM +0000, Will Deacon wrote:
> On Mon, Feb 10, 2014 at 10:17:59PM +0000, Drew Richardson wrote:
> > While adding CPU on/offlining support during perf captures I get an
> > Oops both on ARM as well as my desktop x86_64. Below is a small
> > program that duplicates the issue.
>
> [...]
>
> FWIW I can reproduce this easily with -rc3 on my x86 laptop running
> hackbench in parallel with a tweaked version of your test (using
> _SC_NPROCESSORS_ONLN instead of _SC_NPROCESSORS_CONF and hotplugging off
> both CPU2 and CPU3).
-ENOTEST
next prev parent reply other threads:[~2014-02-18 10:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-10 22:17 Perf Oops on 3.14-rc2 Drew Richardson
2014-02-18 10:18 ` Will Deacon
2014-02-18 10:52 ` Peter Zijlstra
2014-02-18 11:03 ` Will Deacon
2014-02-18 10:54 ` Peter Zijlstra [this message]
2014-02-18 11:01 ` Will Deacon
2014-02-19 16:28 ` Peter Zijlstra
2014-02-19 18:03 ` Stephane Eranian
2014-02-19 18:36 ` Peter Zijlstra
2014-02-19 19:59 ` Stephane Eranian
2014-02-19 20:24 ` Peter Zijlstra
2014-02-19 19:37 ` Drew Richardson
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