Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757687Ab0DGKJW (ORCPT ); Wed, 7 Apr 2010 06:09:22 -0400 Received: from mail-fx0-f223.google.com ([209.85.220.223]:38965 "EHLO mail-fx0-f223.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757187Ab0DGKJQ (ORCPT ); Wed, 7 Apr 2010 06:09:16 -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; b=Daktllmr2n6Ra6rCD0arg3n45UMhi6Mr8OqpeKMCxkOEpXHwpv60yXYUQtQzPb+j32 TpVKcwaKgJNWVynCnf8CJMK+rKw2ssN8oxaROO3EE9K+j2u5EdjeNUay/VPERLYxTtqc JOGG8T5gV3FHlUOYoCmiaucWuhz3V9rhecc64= MIME-Version: 1.0 In-Reply-To: References: <4BBB69A9.5090906@redhat.com> <20100406120315.53ad7390.akpm@linux-foundation.org> <20100406194238.GB20357@a1.tnic> <20100406205123.GC20357@a1.tnic> <4BBBC240.3090302@redhat.com> Date: Wed, 7 Apr 2010 13:09:14 +0300 X-Google-Sender-Auth: b05e977f66eeccf0 Message-ID: Subject: Re: Ugly rmap NULL ptr deref oopsie on hibernate (was Linux 2.6.34-rc3) From: Pekka Enberg To: Linus Torvalds Cc: Rik van Riel , Borislav Petkov , Andrew Morton , Minchan Kim , KOSAKI Motohiro , Linux Kernel Mailing List , Lee Schermerhorn , Nick Piggin , Andrea Arcangeli , Hugh Dickins , sgunderson@bigfoot.com, Christoph Lameter , Tejun Heo Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 794 Lines: 19 Hi Linus, On Wed, Apr 7, 2010 at 3:10 AM, Linus Torvalds wrote: > Sounds at least possible. Way more likely than any of the "trivially > obvious" code being buggy, or the SLUB layer suddenly having a serious bug > that only the new user could trigger. I haven't followed the discussion at all but if someone wants to investigate that angle more, the most likely suspect are the recent per-cpu changes. That said, I'd expect the problem to be more widespread if SLUB is to blame here. Pekka -- 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/