From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755986Ab2BGLgz (ORCPT ); Tue, 7 Feb 2012 06:36:55 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:42574 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755038Ab2BGLgy (ORCPT ); Tue, 7 Feb 2012 06:36:54 -0500 Date: Tue, 7 Feb 2012 12:36:46 +0100 From: Ingo Molnar To: Stephane Eranian Cc: Eric Dumazet , linux-kernel@vger.kernel.org, peterz@infradead.org, markus@trippelsdorf.de, paulus@samba.org Subject: Re: [PATCH] perf: fix assertion failure in x86_pmu_start() Message-ID: <20120207113646.GA2025@elte.hu> References: <20120206205354.GA31186@quad> <1328603689.2476.15.camel@edumazet-laptop> <20120207084156.GA15359@elte.hu> <1328610322.2232.1.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <1328610997.2232.3.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <1328613886.3443.2.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Stephane Eranian wrote: > > This was already discussed last year. > > > > https://lkml.org/lkml/2011/3/24/552 > > > > Apparently all HP blades I have in my labs have the problem, > > whatever option is chosen in BIOS. > > > > On my machines, I set the BIOS to 'High performance', and > > cpus are on highest available frequencies. > > Yeah, it's an old problem (> 4years). And if I recall > correctly, there is no option in the BIOS to turn it off. > You'd have to talk to HP directly. That's most likely unrelated to the regression at hand though. Thanks, Ingo