From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755599AbYCCOwS (ORCPT ); Mon, 3 Mar 2008 09:52:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753667AbYCCOwA (ORCPT ); Mon, 3 Mar 2008 09:52:00 -0500 Received: from accolon.hansenpartnership.com ([76.243.235.52]:56304 "EHLO accolon.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753354AbYCCOv6 (ORCPT ); Mon, 3 Mar 2008 09:51:58 -0500 Subject: Re: [BUG] 2.6.25-rc2-git3 broke cdrecord From: James Bottomley To: Mikael Pettersson Cc: Stefan Richter , FUJITA Tomonori , crmafra2@gmail.com, linux-kernel@vger.kernel.org, htejun@gmail.com, jens.axboe@oracle.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org In-Reply-To: <18379.53492.171481.255371@harpo.it.uu.se> References: <20080302233415.GA6258@Pilar> <18379.18297.838050.536473@harpo.it.uu.se> <20080303172641Z.fujita.tomonori@lab.ntt.co.jp> <47CBC014.9090309@s5r6.in-berlin.de> <18379.51360.744676.894510@harpo.it.uu.se> <18379.53492.171481.255371@harpo.it.uu.se> Content-Type: text/plain Date: Mon, 03 Mar 2008 08:51:53 -0600 Message-Id: <1204555913.3043.1.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 (2.12.3-1.fc8) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2008-03-03 at 11:20 +0100, Mikael Pettersson wrote: > Mikael Pettersson writes: > > Stefan Richter writes: > > > FUJITA Tomonori wrote: > > > > On Mon, 3 Mar 2008 02:48:23 +0100 (CET) > > > > Stefan Richter wrote: > > > >> CD burning still fails for me via ide-cd, although in a > > > >> different way than without the patch. (Without the patch, ide-cd also > > > >> fails like described by you for SATA.) > > > >> > > > >> With the patch, the failure is as follows. I don't know if this is > > > >> related to the data length arithmetic or something entirely different; > > > >> all I learned so far is that 2.6.24 works. Application log from > > > >> 2.6.25-rc3 + Tejun's patch + Gentoo's cdrkit-1.1.6 + k3b: > > > > > > > > Can you try the following patch? > > > > > > > > http://lkml.org/lkml/2008/3/2/218 > > > > > > Fails just like with Tejun's patch, alas. > > > > At this point I must confess I feel very uneasy about this situation. > > > > Dare I suggest the perhaps hereditary solution of reverting these > > changes and doing them right after 2.6.25 final? > > Doh! s/hereditary/heretical/ Unfortunately not. This patch set was first introduced to fix a panic in the SAS drivers that support SATAPI because they couldn't cope with the way libata mangled the sg list. We know what the problem is, we just have to find an acceptable way of fixing it. James