Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761498AbYAKPIh (ORCPT ); Fri, 11 Jan 2008 10:08:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758444AbYAKPIa (ORCPT ); Fri, 11 Jan 2008 10:08:30 -0500 Received: from mho-02-bos.mailhop.org ([63.208.196.179]:56016 "EHLO mho-02-bos.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756100AbYAKPI3 (ORCPT ); Fri, 11 Jan 2008 10:08:29 -0500 X-Mail-Handler: MailHop Outbound by DynDNS X-Originating-IP: 18.85.9.106 X-Report-Abuse-To: abuse@dyndns.com (see http://www.mailhop.org/outbound/abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX183mSl+oakwRA3exwvOmL8k Message-ID: <4787864C.1090101@reed.com> Date: Fri, 11 Jan 2008 10:07:56 -0500 From: "David P. Reed" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.9) Gecko/20071115 Fedora/2.0.0.9-1.fc8 Thunderbird/2.0.0.9 Mnenhy/0.7.5.0 MIME-Version: 1.0 To: Alan Cox CC: Rene Herman , Zachary Amsden , "H. Peter Anvin" , Christer Weinigel , Ondrej Zary , Bodo Eggert <7eggert@gmx.de>, Ingo Molnar , Paul Rolland , Pavel Machek , Thomas Gleixner , linux-kernel@vger.kernel.org, Ingo Molnar , rol Subject: Re: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override. References: <9BdU5-1YW-9@gated-at.bofh.it> <200801081810.58904.linux@rainbow-software.org> <4783B1B2.6070005@reed.com> <200801081838.16241.linux@rainbow-software.org> <4783C4A6.9060402@reed.com> <20080108185120.3ff7ed18@lxorguk.ukuu.org.uk> <4783CBD9.7020709@reed.com> <1199847162.7369.323.camel@bodhitayantram.eng.vmware.com> <47845972.9090803@zytor.com> <1199915614.7369.367.camel@bodhitayantram.eng.vmware.com> <47854916.4080703@reed.com> <1200015388.6192.22.camel@bodhitayantram.eng.vmware.com> <4786DD05.20804@keyaccess.nl> <47877ECD.9060408@reed.com> <20080111143748.35883ff7@lxorguk.ukuu.org.uk> In-Reply-To: <20080111143748.35883ff7@lxorguk.ukuu.org.uk> Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1089 Lines: 23 Alan Cox wrote: >> bus abort on the LPC bus". More problematic is that I would think some >> people might want to turn on the AMD feature that generates machine >> checks if a bus timeout happens. The whole point of machine checks is >> > > An ISA/LPC bus timeout is fulfilled by the bridge so doesn't cause an MCE. > > > Good possibility, but the documentation on HyperTransport suggests otherwise, even for LPC bridges in this particular modern world of AMD64. I might do the experiment someday to see if my LPC bridge is implemented in a way that does or doesn't support enabling MCE's. Could be different between Intel and AMD - I haven't had reason to pore over the Intel chipset specs, since my poking into all this stuff has been driven by my personal machine's issues, and it's not got any Intel compatible parts. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/