Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754932AbYJXHgQ (ORCPT ); Fri, 24 Oct 2008 03:36:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751432AbYJXHgA (ORCPT ); Fri, 24 Oct 2008 03:36:00 -0400 Received: from pasmtpa.tele.dk ([80.160.77.114]:56700 "EHLO pasmtpA.tele.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751090AbYJXHf7 (ORCPT ); Fri, 24 Oct 2008 03:35:59 -0400 Date: Fri, 24 Oct 2008 09:34:59 +0200 From: Jens Axboe To: "Rafael J. Wysocki" Cc: Alexander Beregalov , tj@kernel.org, torvalds@linux-foundation.org, LKML , linux-ide@vger.kernel.org Subject: Re: [Regression] 2.6.28-rc1 (2fca5c): libata: kernel cant boot (was: Re: 2.6.27-rc1 (2fca5c): libata: kernel cant boot) Message-ID: <20081024073458.GQ22217@kernel.dk> References: <20081024070955.GN22217@kernel.dk> <200810240938.54167.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200810240938.54167.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1466 Lines: 48 On Fri, Oct 24 2008, Rafael J. Wysocki wrote: > On Friday, 24 of October 2008, Jens Axboe wrote: > > On Fri, Oct 24 2008, Alexander Beregalov wrote: > > > Hi > > > > > > commit 2fca5ccf97d2c28bcfce44f5b07d85e74e3cd18e > > > Author: Jens Axboe > > > Date: Wed Oct 22 09:34:49 2008 +0200 > > > > > > libata: switch to using block layer tagging support > > > > > > > > > This kernel can not read even 0 sector on disk with rootfs. It > > > initialized disk, but cant read it at all. > > > CMD646 on Sparc > > > > > > Rverting helped. > > Confirmed on hp nx6325 w/ pata_atiixp (apparently, SCSI commands time out). Basically it'll dererence ->qcmd[] with -1 index so it'll break in various interesting ways, I'm sure. > Reverting the commit also helps here. > > [I guess it's going to break things left and right.] Indeed. > > Doh, how annoying! What driver does that controller use? PATA doesn't > > even use NCQ, so it's a bit of an oddity that it makes a difference at > > all. > > > > Can you provide the boot messages? > > If I'm able to reproduce the breakage of Asus L5D, I will. I don't need that anymore, I realized the mistake right after sending that. -- Jens Axboe -- 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/