From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754108AbYKJIF1 (ORCPT ); Mon, 10 Nov 2008 03:05:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750970AbYKJIFS (ORCPT ); Mon, 10 Nov 2008 03:05:18 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:36298 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750815AbYKJIFR (ORCPT ); Mon, 10 Nov 2008 03:05:17 -0500 Date: Mon, 10 Nov 2008 09:04:36 +0100 From: Ingo Molnar To: Pavel Machek Cc: kernel list , "Rafael J. Wysocki" , "H. Peter Anvin" Subject: Re: CONFIG_NUMA breaks hibernation on x86-32 with PAE Message-ID: <20081110080436.GF2093@elte.hu> References: <20081109140726.GB1786@ucw.cz> <20081110075216.GD2093@elte.hu> <20081110075529.GD707@atrey.karlin.mff.cuni.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081110075529.GD707@atrey.karlin.mff.cuni.cz> 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,DNS_FROM_SECURITYSAGE autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] 0.0 DNS_FROM_SECURITYSAGE RBL: Envelope sender in blackholes.securitysage.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Pavel Machek wrote: > > > > * Pavel Machek wrote: > > > > > ...at least on 2.6.27 and 2.6.28-rc3. Resume gets to > > > acpi_hibernation_leave, then SLAB corruption is detected and machine > > > ends in series of oops. > > > > > > Any ideas how to debug that? > > > > do you get any serial log or USB key output, so that it's debuggable > > directly? > > Well, I can transcribe the BUG() from a picture, I guess, but it does > not seem to contain much useful info: SLAB corruption was detected and > backtrace is not quite important at that point... > > Serial console is probably possible, but would take few days to setup. No good ideas - the bug description gives me the impression of memory maps save/restore hickup in the hibernation code - and memory maps are pretty much the only thing that are significantly different on NUMA. (amongst the things that would matter to hibernation - there's a lot more other NUMA details) In any case, could you send the .config that fails please, so that this is documented better? Ingo