Re: Strange behavior of perf top with PEBS

From: Peter Zijlstra
Date: Mon Aug 08 2016 - 09:04:00 EST


On Fri, Aug 05, 2016 at 12:23:20PM +0200, Jiri Olsa wrote:
> On Fri, Aug 05, 2016 at 12:30:32PM +0300, Nikolay Borisov wrote:
> >
> >
> > On 08/04/2016 06:29 PM, Jiri Olsa wrote:
> > > On Tue, Jul 26, 2016 at 02:30:46PM +0300, Nikolay Borisov wrote:
> > [SNIP]
> > >
> > > sorry for late response..
> > >
> > > I checked on f22 kernel and it's missing the core2 PEBs fix:
> > > 1424a09a9e18 perf/x86: fix PEBS issues on Intel Atom/Core2
> > >
> > > which was introduced in 4.5.. you should upgrade or include
> > > this patch
> > >
> >
> > Thanks for the reply. Isn't this supposed to be tagged as stable since
> > it essentially breaks the default invocation of perf top?
>
> yep, it seems like good one to have in stable, Peter?

Greg, could you pick:

1424a09a9e18 ("perf/x86: fix PEBS issues on Intel Atom/Core2")

Into 4.4-stable ?