Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753563AbYKGQjU (ORCPT ); Fri, 7 Nov 2008 11:39:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752586AbYKGQjK (ORCPT ); Fri, 7 Nov 2008 11:39:10 -0500 Received: from one.firstfloor.org ([213.235.205.2]:57790 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752536AbYKGQjJ (ORCPT ); Fri, 7 Nov 2008 11:39:09 -0500 Date: Fri, 7 Nov 2008 17:47:57 +0100 From: Andi Kleen To: Eric Dumazet Cc: Andi Kleen , Ingo Molnar , Pekka J Enberg , Robert Richter , linux kernel , Andi Kleen Subject: Re: linux-2.6.28-rc2 regression : oprofile doesnt work anymore ? Message-ID: <20081107164757.GS29626@one.firstfloor.org> References: <84144f020810310721x1d1eccbeica5d10608d7b2e57@mail.gmail.com> <20081104181855.GK9785@erda.amd.com> <4910CD65.1010301@cosmosbay.com> <49113894.5040806@cosmosbay.com> <49130694.7000007@cosmosbay.com> <20081107130249.GN29626@one.firstfloor.org> <49145B26.4040701@cosmosbay.com> <20081107160553.GR29626@one.firstfloor.org> <491468F1.8070304@cosmosbay.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <491468F1.8070304@cosmosbay.com> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1268 Lines: 41 On Fri, Nov 07, 2008 at 05:12:33PM +0100, Eric Dumazet wrote: > Andi Kleen a ?crit : > >On Fri, Nov 07, 2008 at 04:13:42PM +0100, Eric Dumazet wrote: > >>Andi Kleen a ?crit : > >>>Can you please test this patch and see if it solves the problem? > >>> > >>>Thanks, > >>>-Andi > >>> > >>>--- > >>> > >>>oprofile: Fix p6 counter overflow check > >>> > >>>Fix the counter overflow check for CPUs with counter width > 32 > >>> > >>>I had a similar change in a different patch that I didn't submit > >>>and I didn't notice the problem earlier because it was always > >>>tested together. > >>> > >>>Signed-off-by: Andi Kleen > >>> > >>Thanks Andi > >> > >>Unfortunatly, there is still a freeze of NMIS after a while. > > > >How long is the while? > > > > Less than 20 seconds if fully loaded with "tbench 8" on my 8 cpus machine. I don't have tbench on the test box, but when I load it with a couple of while true ; do true ; done loops it also continues sampling. Are you sure it worked in 2.6.27? -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/