From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Strange read data corruption on ext4/LVM/md Date: Thu, 20 May 2010 10:57:29 +0200 Message-ID: <4BF4F979.4070903@kernel.org> 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> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20100520091429.192d560c@mjolnir.ossman.eu> Sender: linux-kernel-owner@vger.kernel.org To: Pierre Ossman Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-ide@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