From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Possible data corruption sata_sil24? Date: Fri, 13 Jul 2007 16:34:06 +0900 Message-ID: <46972AEE.2040805@gmail.com> References: <20070706012432.GB29789@jabberwocky.com> <4693A5A0.5070306@gmail.com> <20070713014252.GA17811@jabberwocky.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com ([64.233.162.227]:22321 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760659AbXGMHeP (ORCPT ); Fri, 13 Jul 2007 03:34:15 -0400 Received: by nz-out-0506.google.com with SMTP id s18so373237nze for ; Fri, 13 Jul 2007 00:34:14 -0700 (PDT) In-Reply-To: <20070713014252.GA17811@jabberwocky.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org, Tejun Heo Hello, David Shaw wrote: >>> Starting with two 500GB SATA drives (interface card uses a Silicon >>> 3124 chipset), /dev/sdd and /dev/sde. I partitioned each into two >>> 250GB chunks (250*1000*1000*1000, not 250*1024*1024*1024), and set up >>> two RAID 1 sets such that /dev/md0 is /dev/sdd1+/dev/sde1 and /dev/md2 >>> is /dev/sdd2+/dev/sde2. I then created a volume group ("storage") on >>> top of /dev/md0 and /dev/md1. Finally, I allocated two logical >>> volumes on top of that: "one" is -L300GB and "two" is -L100GB. >> -ETOOMANYCOMPNONETS. If it's data corruption with sata_sil24, it's >> highly likely that you're gonna be able to regenerate the problem >> without using raw /dev/sdd and /dev/sde devices. Please try that. Oops, sorry, s/without/with/ > It fails whether I use a raw /dev/sdd or partition it into one large > /dev/sdd1, or partition into multiple partitions. sata_sil24 seems to > work by itself, as does dm, but as soon as I mix sata_sil24+dm, I get > corruption. Hmmmm.... Can you reproduce the corruption by accessing both devices simultaneously without using dm? Considering ich5 does fine, it looks like hardware and/or driver problem and I really wanna rule out dm. Thanks. -- tejun