Re: Perf Oops on 3.14-rc2

[Will Deacon]

On Tue, Feb 18, 2014 at 10:54:34AM +0000, Peter Zijlstra wrote:
> 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

Sorry, I trimmed it from my reply since it's not especially concise. It's
inlined in the original post:

  http://lkml.kernel.org/r/20140210221758.GB11542@dreric01-Precision-T1600

Will
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