From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754714Ab1AOXBK (ORCPT ); Sat, 15 Jan 2011 18:01:10 -0500 Received: from cavan.codon.org.uk ([93.93.128.6]:34123 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754133Ab1AOXBH (ORCPT ); Sat, 15 Jan 2011 18:01:07 -0500 Date: Sat, 15 Jan 2011 23:00:54 +0000 From: Matthew Garrett To: "Berahalli, Sreenivasa Reddy" Cc: "linux-acpi@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: FW: ACPI Warning: Invalid length for Pm1aControlBlock: 32, using default 16 (20090903/tbfadt-607) Message-ID: <20110115230053.GA22873@srcf.ucam.org> References: <88E058D95F1C6047975B85AB9C600B1F6DB20525AF@GVW1342EXA.americas.hpqcorp.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <88E058D95F1C6047975B85AB9C600B1F6DB20525AF@GVW1342EXA.americas.hpqcorp.net> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 14, 2011 at 06:33:13PM +0000, Berahalli, Sreenivasa Reddy wrote: > This warning message means the length of register in the ACPI tables and the default values are different. > We see it as over-aggressive check in Linux, with no issue. Linux sees it as a deviation between the BIOS and the spec, which may cause issues if it turns out that we treat this behaviour differently to tested operating systems. Why not fix your BIOS? -- Matthew Garrett | mjg59@srcf.ucam.org