Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946261AbXBPVYl (ORCPT ); Fri, 16 Feb 2007 16:24:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1946262AbXBPVYl (ORCPT ); Fri, 16 Feb 2007 16:24:41 -0500 Received: from ug-out-1314.google.com ([66.249.92.172]:3433 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946261AbXBPVYk (ORCPT ); Fri, 16 Feb 2007 16:24:40 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=JEyDvZGx1+xKdqng157a/FG+XWuYw/lVQUA5qOMy2M1mj6x7mTJu15JdRurGyaVWQOoATDJIais4TmTyIzFJzaixT117Xz7sH+3FMetIyCtBwNH8Rx+LY65cgw4EZjblVSaXpyRLzavI3Joz+2+K/830BKX43sWncrRJu1gJEOQ= Message-ID: <6bffcb0e0702161324p217198a0t88fd1058ac0005ca@mail.gmail.com> Date: Fri, 16 Feb 2007 22:24:39 +0100 From: "Michal Piotrowski" To: tglx@linutronix.de Subject: Re: 2.6.20-git13 kernel BUG at /mnt/md0/devel/linux-git/kernel/time/tick-sched.c:168 Cc: "Ingo Molnar" , LKML In-Reply-To: <1171660939.30834.102.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <45D61632.1020105@googlemail.com> <1171660939.30834.102.camel@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1190 Lines: 44 On 16/02/07, Thomas Gleixner wrote: > On Fri, 2007-02-16 at 21:38 +0100, Michal Piotrowski wrote: > > Hi, > > > > This looks like a tickless stuff > > Yup. > > > 0xc0139ea0 is in tick_nohz_stop_sched_tick (/mnt/md0/devel/linux-git/kernel/time/tick-sched.c:168). > > 163 > > 164 if (need_resched()) > > 165 goto end; > > 166 > > 167 cpu = smp_processor_id(); > > 168 BUG_ON(local_softirq_pending()); > > Hmm, the BUG_ON is inside of an interrupt disabled region, so we should > have bailed out early in the need_resched() check above (because we are > in the idle task context according to the stack trace). > > Is this reproducible ? Yes. > > tglx > > > Regards, Michal -- Michal K. K. Piotrowski LTG - Linux Testers Group (PL) (http://www.stardust.webpages.pl/ltg/) LTG - Linux Testers Group (EN) (http://www.stardust.webpages.pl/linux_testers_group_en/) - 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/