Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934766AbXHLQvv (ORCPT ); Sun, 12 Aug 2007 12:51:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761118AbXHLQvf (ORCPT ); Sun, 12 Aug 2007 12:51:35 -0400 Received: from smtp-vbr1.xs4all.nl ([194.109.24.21]:2352 "EHLO smtp-vbr1.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757985AbXHLQvd (ORCPT ); Sun, 12 Aug 2007 12:51:33 -0400 Date: Sun, 12 Aug 2007 18:51:31 +0200 From: Folkert van Heusden To: Valdis.Kletnieks@vt.edu Cc: roland , linux-kernel@vger.kernel.org Subject: Re: Software based ECC ? Message-ID: <20070812165131.GG7973@vanheusden.com> References: <000a01c7db93$c75b66c0$eeeea8c0@aldipc> <12507.1186812675@turing-police.cc.vt.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <12507.1186812675@turing-police.cc.vt.edu> Organization: www.unixexpert.nl X-Chameleon-Return-To: folkert@vanheusden.com X-Xfmail-Return-To: folkert@vanheusden.com X-Phonenumber: +31-6-41278122 X-URL: http://www.vanheusden.com/ X-PGP-KeyID: 1F28D8AE X-GPG-fingerprint: AC89 09CE 41F2 00B4 FCF2 B174 3019 0E8C 1F28 D8AE X-Key: http://pgp.surfnet.nl:11371/pks/lookup?op=get&search=0x1F28D8AE Read-Receipt-To: Reply-By: Sat Aug 11 15:31:25 CEST 2007 X-Message-Flag: Want to extend your PGP web-of-trust? Coordinate a key-signing at www.biglumber.com User-Agent: Mutt/1.5.16 (2007-06-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1096 Lines: 27 > > http://pdos.csail.mit.edu/papers/softecc:ddopson-meng/softecc_ddopson-meng.pdf > > "SoftECC : A System for Software Memory Integrity Checking" > > Personally, I'd recommend just shelling out the bucks for hardware ECC if > the reliability matters. a question and an idea: Q: is ecc guaranteed to detect all bitflips? Idea: what about a multicore system (3 or more) that runs the same processes on 2 cores and a third core verifying that they both do the same? As I think it is not only ram that can become faulty. Folkert van Heusden -- MultiTail er et flexible tool for ? kontrolere Logfiles og commandoer. Med filtrer, farger, sammenf?ringer, forskeliger ansikter etc. http://www.vanheusden.com/multitail/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com - 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/