From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755284Ab0ETI5j (ORCPT ); Thu, 20 May 2010 04:57:39 -0400 Received: from hera.kernel.org ([140.211.167.34]:34189 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752759Ab0ETI5g (ORCPT ); Thu, 20 May 2010 04:57:36 -0400 Message-ID: <4BF4F979.4070903@kernel.org> Date: Thu, 20 May 2010 10:57:29 +0200 From: Tejun Heo User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Pierre Ossman CC: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Strange read data corruption on ext4/LVM/md References: <20100519225653.1fedb453@mjolnir.ossman.eu> <20100519230426.47c6c1ed@mjolnir.ossman.eu> <20100519232906.3be82279@mjolnir.ossman.eu> <20100519233408.7436bd9b@mjolnir.ossman.eu> <20100520091429.192d560c@mjolnir.ossman.eu> In-Reply-To: <20100520091429.192d560c@mjolnir.ossman.eu> X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Thu, 20 May 2010 08:57:31 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/20/2010 09:14 AM, Pierre Ossman wrote: > Note that this is a live system, so there is some chance that something > wrote to than area, then restored it to the previous state. I'm not > sure how likely that is. > > If not, then it would seem that this is a problem in either the disks, > the controller or the controller driver. The components are WD > WD1002FAEX, sil3132 and sata_sil24 respectively. There is a report that sil3124/32 recognizes FIS corruption but keeps using the payload anyway thus leading to data corruption when the bus condition on pci-e side isn't ideal. Does moving the controller to different slot make difference? Thanks. -- tejun