From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Darrick J. Wong" Subject: Re: [PATCH] scsi: Update Aic94xx SAS/SATA Linux open source devicedriver for new sequence firmware. Date: Thu, 08 Feb 2007 15:32:02 -0800 Message-ID: <45CBB2F2.5030504@us.ibm.com> References: <89FD792A883D4B47AD469FEA2E5D1F9B0F59E8@aime2k302.adaptec.com> Reply-To: "Darrick J. Wong" Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from e32.co.us.ibm.com ([32.97.110.150]:49602 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965596AbXBHXcG (ORCPT ); Thu, 8 Feb 2007 18:32:06 -0500 Received: from westrelay02.boulder.ibm.com (westrelay02.boulder.ibm.com [9.17.195.11]) by e32.co.us.ibm.com (8.12.11.20060308/8.13.8) with ESMTP id l18NVhsG012852 for ; Thu, 8 Feb 2007 18:31:43 -0500 Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by westrelay02.boulder.ibm.com (8.13.8/8.13.8/NCO v8.2) with ESMTP id l18NW552503488 for ; Thu, 8 Feb 2007 16:32:05 -0700 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l18NW4F2025019 for ; Thu, 8 Feb 2007 16:32:05 -0700 In-Reply-To: <89FD792A883D4B47AD469FEA2E5D1F9B0F59E8@aime2k302.adaptec.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Wu, Gilbert" Cc: James Bottomley , linux-scsi@vger.kernel.org, Alexis Bruemmer Wu, Gilbert wrote: > Hi Darrick, > > We can duplicate the problem here. The aic94xx with V28 passed IO > testing overnight if we apply IO directly to /dev/sd?. But it fails > very quickly when we create a partition and format it as ext3. The V17 > sequencer works fine with both cases. We are looking into it and find > the root cause ASAP. This may be fairly self evident by now, but it looks like the sequencer for the link (LSEQ, I think?) is somehow locking up, which explains why the scsi_cmnds start timing out and after that all commands (stp, phy control, etc) time out as well. The other drives continue operating normally, so I don't think the central sequencer isn't borked up. Then again, you guys at Adaptec have the sequencer source code works and I don't, so I can't do much more than make vague guesses. Oh well :( --D