linux-kernel - Re: Strange behavior of perf top with PEBS

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Message-ID: <20160805102320.GB12528@krava>
Date:	Fri, 5 Aug 2016 12:23:20 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Nikolay Borisov <kernel@...p.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	andi@...stfloor.org
Subject: Re: Strange behavior of perf top with PEBS

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?

thanks,
jirka