From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Slaby Subject: Re: [PATCH 1/1] ACPI: pci_irq, add PRT_ quirk for IBM Bartolo Date: Tue, 29 Jun 2010 20:40:39 +0200 Message-ID: <4C2A3E27.4060407@suse.cz> References: <1277673679-21458-1-git-send-email-jslaby@suse.cz> <4C27E965.80508@gmail.com> <4C283D84.6080504@suse.cz> <20100628171410.GA27367@srcf.ucam.org> <4C290245.2040001@suse.cz> <20100628204820.GA32503@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:38991 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755209Ab0F2Skb (ORCPT ); Tue, 29 Jun 2010 14:40:31 -0400 In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Robert Hancock Cc: Matthew Garrett , lenb@kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Jesse Barnes On 06/28/2010 11:37 PM, Robert Hancock wrote: > On Mon, Jun 28, 2010 at 2:48 PM, Matthew Garrett wrote: >> I can guarantee to you that a generic Windows install does not have a >> quirk for an IBM PoS system released years after that CD was pressed. The system in question is very old, any current Windows release is newer than that. >> The relevance is that if Windows works without a quirk, then somewhere >> our behaviour diverges from that of Windows and it's likely that other >> machines are also hit by the same issue. Users of those systems may not >> have a support contract with a commercial Linux vendor and may just >> decide to use Windows instead, so there's an incentive for us to >> determine if that's the case and fix Linux's behaviour to match Windows >> rather than to just quirk over it. > > Exactly, this seems like a pretty obvious failure, so either IBM's > testing on this machine under Windows was hopelessly inadequate and it > is broken there too, or else Windows is doing something different and > maybe we should be doing the same thing.. The answer I got is "it works there with a driver" whatever it means (I'm no expert on windows drivers and have no idea what they can do and what quirks can be implemented that way). regards, -- js suse labs