Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756123Ab0FHTGW (ORCPT ); Tue, 8 Jun 2010 15:06:22 -0400 Received: from terminus.zytor.com ([198.137.202.10]:40584 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754925Ab0FHTGV (ORCPT ); Tue, 8 Jun 2010 15:06:21 -0400 Message-ID: <4C0E949D.6090002@zytor.com> Date: Tue, 08 Jun 2010 12:06:05 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-3.fc13 Thunderbird/3.0.4 MIME-Version: 1.0 To: Yuhong Bao CC: linux-kernel@vger.kernel.org, mingo@elte.hu, gregkh@suse.de Subject: Re: Windows side agrees that lowmem corruption is a problem too References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1094 Lines: 20 On 06/08/2010 11:28 AM, Yuhong Bao wrote: > > Adding mingo and gregkh to CC list. >> Remember the lowmem corruption problems that lead the code that displays this to be added to Linux:> AMI BIOS detected: BIOS may corrupt low RAM, working around it.> which was IMO way too broad. Good news, the Windows side agree that this is a problem too:> http://www.microsoft.com/whdc/system/platform/firmware/mem-corrupt.mspx>> Yuhong Bao > Hardly "way too broad". I'm starting to think we should enable it unconditionally, given the number of machines which have exhibited that problem. As shown in the whitepaper, Vista/Win7 even avoid using < 1 MB for a lot of things, presumably for this reason. If it only was suspend, it would be one thing, but from what I've seen it has been known to happen at other times too (e.g. HDMI cable insertion!) -hpa -- 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/