From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757139Ab0BRBN0 (ORCPT ); Wed, 17 Feb 2010 20:13:26 -0500 Received: from snt0-omc2-s32.snt0.hotmail.com ([65.55.90.107]:58834 "EHLO snt0-omc2-s32.snt0.hotmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752509Ab0BRBNY convert rfc822-to-8bit (ORCPT ); Wed, 17 Feb 2010 20:13:24 -0500 Message-ID: X-Originating-IP: [96.253.143.208] From: Yuhong Bao To: CC: , , , , Subject: RE: [PATCH 10/10] x86-32: panic on !CX8 && XMM Date: Wed, 17 Feb 2010 17:13:23 -0800 Importance: Normal In-Reply-To: <4B7C7EB3.6000202@zytor.com> References: <1266406962-17463-1-git-send-email-luca@luca-barbieri.com> <1266406962-17463-11-git-send-email-luca@luca-barbieri.com>,<4B7C6FC8.7090107@zytor.com> ,<4B7C7EB3.6000202@zytor.com> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT MIME-Version: 1.0 X-OriginalArrivalTime: 18 Feb 2010 01:13:23.0842 (UTC) FILETIME=[9126F620:01CAB037] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> Also, don't forget the NT4 CX8 bug with non-Intel/AMD/Cyrix vendors: >> http://www.geoffchappell.com/studies/windows/km/cpu/cx8.htm >> If a processor support SSE (or PAE or MMX for that matter), you can pretty much assume CX8 exists even if the feature bit is cleared because of this bug. >> > > Those kinds of things we *also* deal with by adjusting the CPU features > in the detection code. And in fact, the Linux setup code already has code similar to the code used in XP to disable this NT4 workaround. Yuhong Bao _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft. http://clk.atdmt.com/GBL/go/201469230/direct/01/