From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754054AbYGVSWT (ORCPT ); Tue, 22 Jul 2008 14:22:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752521AbYGVSWH (ORCPT ); Tue, 22 Jul 2008 14:22:07 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44368 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752593AbYGVSWG (ORCPT ); Tue, 22 Jul 2008 14:22:06 -0400 Message-ID: <48862526.7060704@zytor.com> Date: Tue, 22 Jul 2008 14:21:26 -0400 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Jeff Garzik CC: "Luis R. Rodriguez" , linux kernel , "H. Peter Anvin" , Ivan Seskar , jfm3 , Sujith Subject: Re: Bug on 2.6.26 - x86 VIA Nehemiah CentaurHauls processor cannot boot References: <43e72e890807210614y58065d75j5b2fb3c5ebe6180a@mail.gmail.com> <48848DDF.6010903@zytor.com> <43e72e890807210701w6d7f5638w5fdbea76a1cf1c0b@mail.gmail.com> <48851AC2.8030007@zytor.com> <43e72e890807212147p5d19cfact17e719abb338378c@mail.gmail.com> <488614A3.1060400@garzik.org> In-Reply-To: <488614A3.1060400@garzik.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jeff Garzik wrote: >> >> Thanks for taking a look at this. So well, it would be a >> misconfiguration bug by the distribution then to try to support a >> generic 686 kernel wihtout GENERIC then. > > Well, it may be intentional -- some distros simply exclude support for > the lower-volume VIA processors, since that might imply building their > "generic 686 kernel" sans CMOV and some other instructions, and changing > the compiler's instruction scheduling to something less optimal for the > majority. :/ > X86_GENERIC shouldn't disable CMOV? We're only referring specifically to the family == 6 VIA processors here. -hpa