From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754422AbYKJI2u (ORCPT ); Mon, 10 Nov 2008 03:28:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753430AbYKJI2l (ORCPT ); Mon, 10 Nov 2008 03:28:41 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:56171 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753353AbYKJI2k (ORCPT ); Mon, 10 Nov 2008 03:28:40 -0500 Date: Mon, 10 Nov 2008 09:28:02 +0100 From: Ingo Molnar To: KAMEZAWA Hiroyuki Cc: Pavel Machek , kernel list , "Rafael J. Wysocki" , "H. Peter Anvin" Subject: Re: CONFIG_NUMA breaks hibernation on x86-32 with PAE Message-ID: <20081110082802.GA22392@elte.hu> References: <20081109140726.GB1786@ucw.cz> <20081110075216.GD2093@elte.hu> <20081110075529.GD707@atrey.karlin.mff.cuni.cz> <20081110172407.5584156d.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081110172407.5584156d.kamezawa.hiroyu@jp.fujitsu.com> 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 * KAMEZAWA Hiroyuki wrote: > On Mon, 10 Nov 2008 08:55:29 +0100 > 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. > > Pavel > > How about this patch ? > == > http://marc.info/?l=linux-mm-commits&m=122624388629106&w=2 > == note, that fix of Rafael's is now upstream as: c5d7124: Fix __pfn_to_page(pfn) for CONFIG_DISCONTIGMEM=y and included in v2.6.28-rc4. But yes, this area of code (the save/restore of memory maps) would be the main suspect to investigate. Ingo