From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753285Ab1GFHLU (ORCPT ); Wed, 6 Jul 2011 03:11:20 -0400 Received: from mail.bbaw.de ([194.95.188.6]:58149 "EHLO mail.bbaw.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753040Ab1GFHLT (ORCPT ); Wed, 6 Jul 2011 03:11:19 -0400 Date: Wed, 6 Jul 2011 09:11:17 +0200 From: Lars =?UTF-8?B?VMOkdWJlcg==?= To: linux-kernel@vger.kernel.org Subject: Re: [PROBLEM] reproduceable storage errors on high IO load Message-Id: <20110706091117.9caa1d69.taeuber@bbaw.de> In-Reply-To: <62378.1309905287@turing-police.cc.vt.edu> References: <20110606095127.21d23a70.taeuber@bbaw.de> <201106060559.03131.gene.heskett@gmail.com> <20110606130628.e86f0c67.taeuber@bbaw.de> <201106060920.32257.gene.heskett@gmail.com> <20110606155610.69a0d17a.taeuber@bbaw.de> <20110607124354.06ed074e.taeuber@bbaw.de> <20110701102323.3db579ad.taeuber@bbaw.de> <20110701151313.2afd48e0.taeuber@bbaw.de> <20110701163719.27afc580.taeuber@bbaw.de> <20110704153923.b929ce5d.taeuber@bbaw.de> <62378.1309905287@turing-police.cc.vt.edu> X-Mailer: Sylpheed 3.1.0 (GTK+ 2.24.4; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiVirus: checked by Avira MailGate (version: 2.1.4-7; AVE: 7.9.5.34; VDF: 7.11.10.229; host: mailhub); id=13609-aYagrK Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Valdis, Am Tue, 05 Jul 2011 18:34:47 -0400 Valdis.Kletnieks@vt.edu schrieb: > On Mon, 04 Jul 2011 15:39:23 +0200, Lars =?UTF-8?B?VMOkdWJlcg==?= said: > > > 1. > > * Ultrastar 7K3000 attached to onboard AMD_AHCI > > * dd if=/dev/zero of=/dev/sde > > * dd told write speed of: 15.7MB/s > > * no error after half an hour > > > > 2. > > * Ultrastar 7K3000 attached to PCIe to sata_mv controller > > * dd if=/dev/zero of=/dev/sda > > * dd told write speed of: 6.5MB/s > > * no error but strange log: dmesg-PCIe-sata_mv.log.gz > > > > 3. > > * Ultrastar 7K3000 attached to PCIe areca SAS HBA (mvsas) > > * dd if=/dev/zero of=/dev/sdg > > * dd told write speed of: 1.3MB/s > > * errors: dmesg-PCIe-mvsas.log.gz > > Umm.. was this the *same* Ulstrastar disk connected 3 different ways? And > how exactly was it connected in each case? (Trying to rule out flaky disks > if it was 3 different disks, or a hardware/cabling issue specific to the > areca controller) No it wasn't the same disk but drives of identical type and version and with same firmware. All the problems I came across during my odyssey could be different ones. The most recent could be related to the mvsas driver. See https://bugzilla.kernel.org/show_bug.cgi?id=14534#c11 and following. Thanks Lars