From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: 2.6.21-mm2: ACPI exception on resume Date: Wed, 23 May 2007 10:57:47 +0200 Message-ID: <200705231057.48320.rjw@sisk.pl> References: <20070519165738.GK11115@waste.org> <20070523001943.GA3743@khazad-dum.debian.net> <20070523014825.GX11115@waste.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from ogre.sisk.pl ([217.79.144.158]:60335 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756488AbXEWIwa (ORCPT ); Wed, 23 May 2007 04:52:30 -0400 In-Reply-To: <20070523014825.GX11115@waste.org> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matt Mackall Cc: Henrique de Moraes Holschuh , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, akpm@linux-foundation.org On Wednesday, 23 May 2007 03:48, Matt Mackall wrote: > On Tue, May 22, 2007 at 09:19:43PM -0300, Henrique de Moraes Holschuh wrote: > > On Tue, 22 May 2007, Matt Mackall wrote: > > > On Mon, May 21, 2007 at 08:03:49PM -0300, Henrique de Moraes Holschuh wrote: > > > > On Mon, 21 May 2007, Matt Mackall wrote: > > > > > BIOS Information > > > > > Vendor: IBM > > > > > Version: 1RETDHWW (3.13 ) > > > > > Release Date: 10/29/2004 > > > > > > > > > > No sign of any EC version in the output. > > > > > > > > This is a buggy, ancient version of the BIOS, which probably means you have > > > > an old and slightly buggy EC firmware. I recommend you to upgrade to BIOS > > > > 3.21 and EC 3.04. See http://thinkwiki.org/wiki/BIOS_Upgrade for more > > > > details. > > > > > > Really, I'd much prefer my kernel not regress instead. Updating > > > firmware is just introducing more potential instability and ignoring > > > the problem. > > > > We can't very much know if the kernel is really buggy, then. > > Whether the 'bug' is in the firmware or the kernel, it is the kernel > that has regressed. Suspend worked fine for 2+ years before this. > > Breaking working systems, either software or hardware, is a bad idea. > I shouldn't have to upgrade my BIOS to work with a new kernel any more > than I should have to upgrade my browser. While I agree with that, it would really be helpful if you tested the latest -rc kernel and saw if the bug was present in there. If the bug is not present in the latest -rc, it'll be possible to identify the patch that causes it to appear in -mm and find the reason of the breakage. Greetings, Rafael