From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263591AbVCEBUG (ORCPT ); Fri, 4 Mar 2005 20:20:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263578AbVCEBTq (ORCPT ); Fri, 4 Mar 2005 20:19:46 -0500 Received: from 206.175.9.210.velocitynet.com.au ([210.9.175.206]:22991 "EHLO cunningham.myip.net.au") by vger.kernel.org with ESMTP id S263591AbVCEBIW (ORCPT ); Fri, 4 Mar 2005 20:08:22 -0500 Subject: Re: BIOS overwritten during resume (was: Re: Asus L5D resume on battery power) From: Nigel Cunningham Reply-To: ncunningham@cyclades.com To: Pavel Machek Cc: "Rafael J. Wysocki" , Andi Kleen , Linux Kernel Mailing List , paul.devriendt@amd.com In-Reply-To: <20050304234149.GD2647@elf.ucw.cz> References: <200502252237.04110.rjw@sisk.pl> <200503041415.35162.rjw@sisk.pl> <20050304201109.GB2385@elf.ucw.cz> <200503050026.06378.rjw@sisk.pl> <20050304234149.GD2647@elf.ucw.cz> Content-Type: text/plain Message-Id: <1109985002.3772.325.camel@desktop.cunningham.myip.net.au> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Sat, 05 Mar 2005 12:10:02 +1100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi. On Sat, 2005-03-05 at 10:41, Pavel Machek wrote: > > non-RAM areas with PG_nosave, at least for sanity reasons (eg to be sure that > > we do not break things by dumping stuff to where we should not write to). > > I'm not sure if it is not better to save & restore non-RAM areas, but > it probably just does not matter. IIRC, it does matter. I think there were situations where you got something nasty (MCE/oops/freeze) if you tried reading memory that doesn't exist. If you push me I'll put the effort into looking up suspend2 archives to find the discussion :> Regards, Nigel -- Nigel Cunningham Software Engineer, Canberra, Australia http://www.cyclades.com Bus: +61 (2) 6291 9554; Hme: +61 (2) 6292 8028; Mob: +61 (417) 100 574 Maintainer of Suspend2 Kernel Patches http://softwaresuspend.berlios.de