From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934909AbcHEKXY (ORCPT ); Fri, 5 Aug 2016 06:23:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59754 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759483AbcHEKXX (ORCPT ); Fri, 5 Aug 2016 06:23:23 -0400 Date: Fri, 5 Aug 2016 12:23:20 +0200 From: Jiri Olsa To: Nikolay Borisov Cc: Peter Zijlstra , "Linux-Kernel@Vger. Kernel. Org" , andi@firstfloor.org Subject: Re: Strange behavior of perf top with PEBS Message-ID: <20160805102320.GB12528@krava> References: <578F7C82.6090500@kyup.com> <20160720143417.GA25992@krava> <20160720143842.GB25992@krava> <579749E6.1030408@kyup.com> <20160804152926.GA25592@krava> <57A45CB8.4040909@kyup.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <57A45CB8.4040909@kyup.com> User-Agent: Mutt/1.6.2 (2016-07-01) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 05 Aug 2016 10:23:22 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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