Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754072Ab1EDMvQ (ORCPT ); Wed, 4 May 2011 08:51:16 -0400 Received: from mail-qw0-f46.google.com ([209.85.216.46]:60733 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753671Ab1EDMvP convert rfc822-to-8bit (ORCPT ); Wed, 4 May 2011 08:51:15 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=H1TCdIbtSfX07rtNLsVa2/2q7n0H7yptgoZc6Fy2pQfi6qUBEfRDi24C2yTW5TL7LV PT7ABKFrbsvJI0SFkSshNpunUeTRRyRVg+b+U/dIumd9PrJNn3gHvgtE36WRd0aSME1f bpBznMvTsAo9EQ/Dhe9MyASDYlMGYV8qn+/7Q= MIME-Version: 1.0 In-Reply-To: <20110504112746.GE8007@htj.dyndns.org> References: <20110503190822.GA20520@elte.hu> <20110504083559.GB25724@elte.hu> <20110504101932.GA3392@elte.hu> <20110504112746.GE8007@htj.dyndns.org> Date: Wed, 4 May 2011 15:51:14 +0300 X-Google-Sender-Auth: Oqnbf0_NO7x65VeJc61WrdpzF5s Message-ID: Subject: Re: [block IO crash] Re: 2.6.39-rc5-git2 boot crashs From: Pekka Enberg To: Tejun Heo Cc: Thomas Gleixner , Ingo Molnar , Linus Torvalds , Jens Axboe , Andrew Morton , werner , "H. Peter Anvin" , Linux Kernel Mailing List , Christoph Lameter Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 676 Lines: 15 Hi Tejun, On Wed, May 4, 2011 at 2:27 PM, Tejun Heo wrote: > Hmmm... if it's a race caused by preemtion enabled where it shouldn't > be, it's most likely the wrong type of this_cpu_cmpxchg_double() being > used in SLUB? ?ie. __this_cpu_cmpxchg_double() where it should have > been this_cpu_cmpxchg_double()? ?Christoph? There's no __this_cpu_cmpxchg_double() usage in mm/slub.c so I don't think it's that simple. -- 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/