Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751134AbVIMFKK (ORCPT ); Tue, 13 Sep 2005 01:10:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751142AbVIMFKK (ORCPT ); Tue, 13 Sep 2005 01:10:10 -0400 Received: from mail.cs.umn.edu ([128.101.35.202]:35013 "EHLO mail.cs.umn.edu") by vger.kernel.org with ESMTP id S1751134AbVIMFKI (ORCPT ); Tue, 13 Sep 2005 01:10:08 -0400 Date: Tue, 13 Sep 2005 00:10:05 -0500 From: Dave C Boutcher To: Andrew Morton Cc: serue@us.ibm.com, linux-kernel@vger.kernel.org, Stephen Rothwell , Paul Mackerras , Benjamin Herrenschmidt , Anton Blanchard , Andi Kleen , James Bottomley , lxie@us.ibm.com, santil@us.ibm.com Subject: Re: ibmvscsi badness (Re: 2.6.13-mm3) Message-ID: <20050913051005.GA8771@cs.umn.edu> Reply-To: boutcher@cs.umn.edu Mail-Followup-To: Andrew Morton , serue@us.ibm.com, linux-kernel@vger.kernel.org, Stephen Rothwell , Paul Mackerras , Benjamin Herrenschmidt , Anton Blanchard , Andi Kleen , James Bottomley , lxie@us.ibm.com, santil@us.ibm.com References: <20050912024350.60e89eb1.akpm@osdl.org> <20050912222437.GA13124@sergelap.austin.ibm.com> <20050912161013.76ef833f.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050912161013.76ef833f.akpm@osdl.org> User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1832 Lines: 47 On Mon, Sep 12, 2005 at 04:10:13PM -0700, Andrew Morton wrote: > serue@us.ibm.com wrote: > > > > Trying to get 2.6.13-mm running on a power5 lpar, I'm > > having scsi problems. > > You should have cc'ed the scsi mailing list, no? > > > With -mm2, I only get things like: > > sd 0:0:0:0: SCSI error: return code = 0x8000002 > > sda: Current: sense key: Aborted Command > > Additional sense: No additional sense information > > Info fld=0x0 > > end_request: I/O error, dev sda, sector 10468770 > > sd 0:0:0:0: SCSI error: return code = 0x8000002 > > sda: Current: sense key: Aborted Command > > Additional sense: No additional sense information > > Info fld=0x0 > > end_request: I/O error, dev sda, sector 10468778 > > sd 0:0:0:0: SCSI error: return code = 0x8000002 > > sda: Current: sense key: Aborted Command > > Additional sense: No additional sense information > > Info fld=0x0 > > end_request: I/O error, dev sda, sector 10468786 Well, I know why you get these errors with mm2. mm2 ibmvscsi allows transferring longer scatterlists between the initiator and the target than before. However that breaks compatibility with the older target that was shipped with SLES 9. Longer scatterlists ARE supported with the target I recently posted as an RFC. I'm thinking we'll have to add a module paramter to limit scatterlist sizes that defaults to the old behaviour. Let me sleep on that and kick it around with Linda tomorrow and we'll figure out some kind of solution. As Anton already reported, mm3 has an additional set of breakages... -- Dave Boutcher - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/