From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753961AbZBQVsr (ORCPT ); Tue, 17 Feb 2009 16:48:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751682AbZBQVsi (ORCPT ); Tue, 17 Feb 2009 16:48:38 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:56173 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751385AbZBQVsh (ORCPT ); Tue, 17 Feb 2009 16:48:37 -0500 Date: Tue, 17 Feb 2009 22:48:29 +0100 From: Ingo Molnar To: Damien Wyart Cc: "Paul E. McKenney" , Peter Zijlstra , Mike Galbraith , =?iso-8859-1?Q?Fr=E9d=E9ric?= Weisbecker , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List Subject: Re: [Bug #12650] Strange load average and ksoftirqd behavior with 2.6.29-rc2-git1 Message-ID: <20090217214829.GB6976@elte.hu> References: <87ljs6pmao.fsf@free.fr> <20090216132151.GA17996@elte.hu> <20090216160613.GA6785@linux.vnet.ibm.com> <20090216185616.GB6785@linux.vnet.ibm.com> <20090216200923.GA28938@elte.hu> <20090216223944.GF6785@linux.vnet.ibm.com> <20090216225108.GA15904@linux.vnet.ibm.com> <20090217094657.GA1845@elte.hu> <20090217140130.GA6761@linux.vnet.ibm.com> <20090217153925.GA2308@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090217153925.GA2308@localhost.localdomain> 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 * Damien Wyart wrote: > Hello Paul, > > > > There's no strong reason - we've been back and forth about RCU in > > > the dynticks code. Mind sending a test patch for Damien to try? > > > But of course! ;-) > > With this patch, the problem goes away and system activity > seems normal, both on the P4 with high load and on the recent > laptop. Applied to tip:x86/urgent, thanks a lot for the patient testing and tracing! Ingo