From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754199AbYGCPMb (ORCPT ); Thu, 3 Jul 2008 11:12:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751802AbYGCPMX (ORCPT ); Thu, 3 Jul 2008 11:12:23 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:33637 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750852AbYGCPMW (ORCPT ); Thu, 3 Jul 2008 11:12:22 -0400 Date: Thu, 3 Jul 2008 17:12:09 +0200 From: Ingo Molnar To: Gregory Haskins Cc: rostedt@goodmis.org, peterz@infradead.org, npiggin@suse.de, linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: Re: [PATCH 0/3] sched: newidle and RT wake-buddy fixes Message-ID: <20080703151209.GA17059@elte.hu> References: <20080627202444.3829.21595.stgit@lsg.lsg.lab.novell.com> <20080630131511.GA7506@elte.hu> <4868DCC7.BA47.005A.0@novell.com> <20080703144124.GA653@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080703144124.GA653@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian 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 * Ingo Molnar wrote: > > * Gregory Haskins wrote: > > > I may have found the issue: It looks like the hunk that initially > > disables interrupts in load_balance_newidle() was inadvertently > > applied to load_balance() instead during the merge to linux-tip. If > > you fold the following patch into my original patch, it should set > > things right again. > > ah, sorry - indeed! I've reactivated your patch and i'm testing it > now. -tip testing found that it still hangs at: Intel machine check architecture supported. Intel machine check reporting enabled on CPU#1. x86 PAT enabled: cpu 1, old 0x7040600070406, new 0x7010600070106 CPU1: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ stepping 02 Brought up 2 CPUs Total of 2 processors activated (8044.97 BogoMIPS). [...] with this config: http://redhat.com/~mingo/misc/config-Thu_Jul__3_16_49_53_CEST_2008.bad on 3 separate test-systems. I've again reverted both your fixup and the original commit. I've pushed out the failing tree to the tmp.sched/devel.fe6149f5e82 -tip branch, you should be able to reproduce it. Ingo