From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759549AbZAMNV1 (ORCPT ); Tue, 13 Jan 2009 08:21:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754771AbZAMNVT (ORCPT ); Tue, 13 Jan 2009 08:21:19 -0500 Received: from styx.suse.cz ([82.119.242.94]:60289 "EHLO dhcp35" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753313AbZAMNVS (ORCPT ); Tue, 13 Jan 2009 08:21:18 -0500 Date: Tue, 13 Jan 2009 14:21:17 +0100 From: Michal Hocko To: Ingo Molnar Cc: LKML , Nick Piggin , Peter Zijlstra Subject: Re: WARNING: at kernel/sched.c:4440 sub_preempt_count+0x81/0x95() Message-ID: <20090113132117.GA5571@dhcp35.suse.cz> References: <20090113122455.GA24824@dhcp35.suse.cz> <20090113123425.GB29926@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090113123425.GB29926@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 13-01-09 13:34:25, Ingo Molnar wrote: > > * Michal Hocko wrote: > > > Hi, > > I am not sure whether someone has already reported this, but > > I can see the following early boot WARNING with the 2.6.29-rc1 kernel in > > the serial console output: > > > > ------------[ cut here ]------------ > > WARNING: at kernel/sched.c:4440 sub_preempt_count+0x81/0x95() > > That one should be fixed in tip/master and it is in the to-Linus queue of > fixes: > > http://people.redhat.com/mingo/tip.git/README > > it's this commit: > > 01e3eb8: Revert "sched: improve preempt debugging" > > if you want to cherry-pick the fix. Thanks that fixes the issue on my end. > > Ingo -- Michal Hocko L3 team SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic