From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean Delvare Subject: Re: [PATCH] ACPI: add "auto" to acpi_enforce_resources Date: Tue, 10 Feb 2009 17:24:08 +0100 Message-ID: <20090210172408.400cacee@hyperion.delvare> References: <20090125210520.GA12963@dreamland.darkstar.lan> <200901291130.35434.trenn@suse.de> <68676e00901290716g1aabd6c0p1e5202fbdbc659a4@mail.gmail.com> <20090204060513.GA28321@srcf.ucam.org> <498953DF.5050306@redhat.com> <20090204131708.GA2739@srcf.ucam.org> <20090204142606.1823661b@hyperion.delvare> <20090204142015.GB3923@srcf.ucam.org> <20090210145716.105ab58b@hyperion.delvare> <20090210140829.GA25397@srcf.ucam.org> <49919E08.5050002@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from zone0.gcu-squad.org ([212.85.147.21]:13479 "EHLO services.gcu-squad.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753550AbZBJQY2 (ORCPT ); Tue, 10 Feb 2009 11:24:28 -0500 In-Reply-To: <49919E08.5050002@redhat.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Hans de Goede Cc: Matthew Garrett , Len Brown , Luca Tettamanti , Thomas Renninger , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org On Tue, 10 Feb 2009 16:32:24 +0100, Hans de Goede wrote: > Matthew Garrett wrote: > > On Tue, Feb 10, 2009 at 02:57:16PM +0100, Jean Delvare wrote: > > > year (I think the info is available, right?) We could > >> default to strict for systems with year >= 2009. This may still prevent > >> users from getting the best out of their system, but at least won't > >> cause a regression for users of older systems where the native driver > >> has been used so far. I know it's not an ideal solution, but ACPI > >> implementations aren't ideal either. > > > > The problem with this approach is that we still end up with a large > > number of malfunctioning machines. Really, I don't think there's any way > > to handle this other than defaulting to strict, letting the default be > > changed at run and boot time and printing a message when a driver is > > refused permission to bind. Distributions that want to obtain the > > previous behaviour can change the default back. If we expect different distributions / user classes to set a different default, then it might make sense to make acpi_enforce_resources's default value a config option? > For the record we have changed the default to strict in Fedora's > development branch, for 2 weeks or so now, including in the recently > released Fedora 11 release and we've had 0 complaints so far. Well, if the number of affected systems is small, this is good news. But this is only 2 weeks and one distribution, coverage isn't sufficient to claim anything yet IMHO. That being said... if there's a common consensus that switching to strict and dealing with fallouts is the best thing to do, and I'm the only one objecting to this, then I am ready to admit that I was wrong and let you proceed. -- Jean Delvare