Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753521Ab0G2C4e (ORCPT ); Wed, 28 Jul 2010 22:56:34 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:44067 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752981Ab0G2C4b (ORCPT ); Wed, 28 Jul 2010 22:56:31 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 Date: Thu, 29 Jul 2010 11:51:42 +0900 From: KAMEZAWA Hiroyuki To: KAMEZAWA Hiroyuki Cc: Ondrej Zary , "Rafael J. Wysocki" , Kernel development list , Andrew Morton , Balbir Singh Subject: Re: Memory corruption during hibernation since 2.6.31 Message-Id: <20100729115142.00a83b40.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20100729100626.945da6e1.kamezawa.hiroyu@jp.fujitsu.com> References: <201007282320.39528.linux@rainbow-software.org> <201007282334.08063.rjw@sisk.pl> <201007282338.12098.linux@rainbow-software.org> <20100729100626.945da6e1.kamezawa.hiroyu@jp.fujitsu.com> Organization: FUJITSU Co. LTD. X-Mailer: Sylpheed 3.0.3 (GTK+ 2.10.14; i686-pc-mingw32) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1412 Lines: 44 On Thu, 29 Jul 2010 10:06:26 +0900 KAMEZAWA Hiroyuki wrote: > On Wed, 28 Jul 2010 23:38:09 +0200 > Ondrej Zary wrote: > > > On Wednesday 28 July 2010 23:34:07 Rafael J. Wysocki wrote: > > > On Wednesday, July 28, 2010, Ondrej Zary wrote: > > > > Hello, > > > > after very long bisection, I finally found what's causing memory > > > > corruption during hibernation on my machine sice 2.6.31: > > > > https://bugzilla.kernel.org/show_bug.cgi?id=15753 > > > > > > > > It's commit c9e444103b5e7a5a3519f9913f59767f92e33baf (mm: reuse unused > > > > swap entry if necessary). > > > > > > > > I don't know anything about swapping in Linux so I don't have a clue > > > > what's wrong with that commit. > > > > > > Thanks for bisecting! > > > > > > This looks rather serious. I'd be grateful from any clues from the mm guys > > > involved (CCed). > > > > > > Do you use s2disk or the built-in hibernation code? > > > > I use built-in code (echo disk >/sys/power/state). The machine has 256MB RAM > > and 256MB swap partition. > > BTW, what happens at resume ? How to page-in and remap ? Thanks, -Kame -- 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/