From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267990AbUG2PGv (ORCPT ); Thu, 29 Jul 2004 11:06:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267947AbUG2PC6 (ORCPT ); Thu, 29 Jul 2004 11:02:58 -0400 Received: from jade.spiritone.com ([216.99.193.136]:22461 "EHLO jade.spiritone.com") by vger.kernel.org with ESMTP id S264526AbUG2OMs (ORCPT ); Thu, 29 Jul 2004 10:12:48 -0400 Date: Thu, 29 Jul 2004 07:12:29 -0700 From: "Martin J. Bligh" To: "Eric W. Biederman" , Alan Cox cc: Andrew Morton , suparna@in.ibm.com, fastboot@osdl.org, Linux Kernel Mailing List , jbarnes@engr.sgi.com Subject: Re: [Fastboot] Re: Announce: dumpfs v0.01 - common RAS output API Message-ID: <137530000.1091110348@[10.10.2.4]> In-Reply-To: References: <16734.1090513167@ocs3.ocs.com.au><20040725235705.57b804cc.akpm@osdl.org><200407280903.37860.jbarnes@engr.sgi.com> <25870000.1091042619@flay><20040728133337.06eb0fca.akpm@osdl.org><1091044742.31698.3.camel@localhost.localdomain><1091055311.31923.3.camel@localhost.localdomain> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > At that point you might get a corrupt DUMP. But it is extremely > unlikely any DMA transactions will touch your reserved memory. > Only the most buggy drivers or hardware will be running > DMA to the invalid addresses. At which point there is > very little you can do in any event. Nothing we do is ever going to give us 100% perfect crashdumps from any given situation. I think we need to just accept that and take care not to destroy anything important (ie disk data), and try to get the best info into the dump we can. M