From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ruairi Hickey Subject: Re: libata-tj-stable Date: Fri, 06 Jul 2007 12:20:07 +0100 Message-ID: <468E2567.8090405@collon.ie> References: <468CE343.7050407@collon.ie> <468CE4C0.6020102@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from ns2.dkit.ie ([193.1.42.16]:43072 "EHLO mx2.dkit.ie" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758857AbXGFMGm (ORCPT ); Fri, 6 Jul 2007 08:06:42 -0400 Received: from [172.16.22.18] (helo=mailserver01.dkit.ie) by mx2.dkit.ie with esmtp (Exim 4.63) (envelope-from ) id 1I6lrR-00089r-0C for linux-ide@vger.kernel.org; Fri, 06 Jul 2007 12:20:29 +0100 In-Reply-To: <468CE4C0.6020102@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: linux-ide@vger.kernel.org Tejun Heo wrote: > Hello, > > Ruairi Hickey wrote: > >> Hi Tejun, >> I've being testing a storage box from Norco (DS-1220) which comes >> with 12 SATA drives and is connected to a Linux server via a PCI-e >> e-sata card based on the Sil3124. To get this to be recognised I used >> your latest patch libata-tj-2.6.22-rc6-20070702 and the vanilla >> 2.6.22-rc6 kernel. Under load testing I get exceptions in my logs, (see >> below). Can I be of any assistance to you to help debugging this... (I >> can program / read reasonably well in most languages) >> >> >> Ruairi >> >> Jul 5 14:20:09 samba01 kernel: ata2.03: cmd >> 60/08:00:47:c7:f5/00:00:2c:00:00/40 tag 0 cdb 0x0 data 4096 in >> Jul 5 14:20:09 samba01 kernel: res >> 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) >> > > Hmm... it's timeout on FPDMA_READ command. It could be a transient > hardware problem or fluctuating power, what not. I need more info to > diagnose the problem. > > 1. Please cc linux-ide@vger.kernel.org > > 2. How reproducible is the problem? > > 3. If the problem is reproducible, is the problem confined a specific > drive? If so, what happens if you move the drive to different slot (ie. > exchange two drives)? Does the error follow the drive or stay with the > slot? > > 4. Your drive probably has a dip switch which forces 1.5Gbps link speed. > Does that help? > > Thanks. > > Hi Tejun, Thanks for your pointers, I got sidetracked yesterday with other work.... The problem is reproducible by doing a simple 'dd' to create a multiple GB file. The error occurs on different drives at the moment. I am on vacation for the next week but I will remove the linux Raid array and test the drives individually (hopefully today, but maybe when I get back from vacation) and report back to you then... Ruairi