Re: perf: perf_fuzzer lockup in perf_cgroup_attach

From: Peter Zijlstra
Date: Thu Sep 15 2016 - 03:25:01 EST


On Wed, Sep 14, 2016 at 10:35:49PM -0700, Stephane Eranian wrote:
> On Wed, Sep 14, 2016 at 7:43 PM, Vince Weaver <vincent.weaver@xxxxxxxxx> wrote:
> >
> > so the skylake that was fuzzing finally is mostly locked up.
> >
> > Really hard to tell what's going, especially as KASLR made looking up the
> > addresses a big pain.
> >
> I would think there is a way to disable KASLR for this kind of testing!

I always kill CONFIG_RANDOMIZE_BASE, but there's also talk of killing
the address print entirely.. :-(

https://lkml.kernel.org/r/20160831165303.tvcudt7wkpechuqt@treble