From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Renninger Subject: Re: [RESEND] [PATCH 2/3] Introduce acpi_root_table=rsdt boot param and dmi list to force rsdt Date: Tue, 21 Oct 2008 15:05:33 +0200 Message-ID: <200810211505.34657.trenn@suse.de> References: <200810192350.57993.trenn@suse.de> <200810211157.46134.trenn@suse.de> <20081021124604.GA27273@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.suse.de ([195.135.220.2]:54256 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751965AbYJUNFk (ORCPT ); Tue, 21 Oct 2008 09:05:40 -0400 In-Reply-To: <20081021124604.GA27273@srcf.ucam.org> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: Henrique de Moraes Holschuh , Len Brown , linux-acpi , Zhao Yakui , me@markdoughty.co.uk, linux-thinkpad , "devel@acpica.org" On Tuesday 21 October 2008 14:46:04 Matthew Garrett wrote: > On Tue, Oct 21, 2008 at 11:57:44AM +0200, Thomas Renninger wrote: > > Yes we have: > > - XP uses 32 bit addresses > > - Vista uses the newer FADT revision and there the 64 bit addresses. > > > > This information is from BIOS engineers who should know Windows behaviour > > much better than we ever could. > > If Vista is absolutely known to *always* use the 64-bit addresses under > every single circumstance where they're present, then yes, I agree that > this is probably the least bad situation. This is trivial to test - > install Vista on an R40e and see if it hangs on boot. If it does, I > withdraw my objection. If not, then we're not fixing it properly. a) I don't have a R40e b) I don't have a Vista c) I wouldn't try anyway. I spend enough time on this one and I trust the people who told me Vista is using the 64 bit addresses d) The commit Window is closing If you have the time and knowledge to verify: > If Vista is absolutely known to *always* use the 64-bit addresses under > every single circumstance where they're present, then yes I agree that ... then pls, go ahead. Even if this is not proven, the patchset should still go in to get the machines fixed for now and to easily test others, there was enough discussion around it. Thanks, Thomas