From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267469AbUG2WZ1 (ORCPT ); Thu, 29 Jul 2004 18:25:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267490AbUG2WZ1 (ORCPT ); Thu, 29 Jul 2004 18:25:27 -0400 Received: from the-village.bc.nu ([81.2.110.252]:54429 "EHLO localhost.localdomain") by vger.kernel.org with ESMTP id S267488AbUG2WYc (ORCPT ); Thu, 29 Jul 2004 18:24:32 -0400 Subject: Re: [Fastboot] Re: Announce: dumpfs v0.01 - common RAS output API From: Alan Cox To: Andrew Morton Cc: ebiederm@xmission.com, suparna@in.ibm.com, fastboot@osdl.org, mbligh@aracnet.com, jbarnes@engr.sgi.com, Linux Kernel Mailing List In-Reply-To: <20040729111728.5d2bb5c8.akpm@osdl.org> 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> <20040728172204.2ecc5cdd.akpm@osdl.org> <1091109427.865.1.camel@localhost.localdomain> <20040729111728.5d2bb5c8.akpm@osdl.org> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1091136012.1455.14.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Thu, 29 Jul 2004 22:20:13 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Iau, 2004-07-29 at 19:17, Andrew Morton wrote: > Of course, there's an assumption here that the dead kernel doesn't scribble > on pages which were never available to its page allocator. If DMA somehow > goes off and scribbles on the dump kernel we lose. If the new kernel image starts with an SHA hash check including the SHA hash check code that can be pretty robust as a sanity check. > See above. We assume that network RX DMA won't be scribbling in the 16MB > which was pre-reserved. That's reasonable. We _have_ to assume that. Ok