From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762040AbZFQAOR (ORCPT ); Tue, 16 Jun 2009 20:14:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756731AbZFQAOG (ORCPT ); Tue, 16 Jun 2009 20:14:06 -0400 Received: from yw-out-2324.google.com ([74.125.46.30]:47095 "EHLO yw-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756217AbZFQAOE (ORCPT ); Tue, 16 Jun 2009 20:14:04 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=e+hmrCUqpyFGLkL1cSoUHP3pSUCeTg/SIzVra5zG2daS9ezoiKcSUE/fecyMR9jSbI 6XnRjx9A0cxdRVSCYnbVN59e/U2rY5W3KCHZtKbSRe2m/RgE4j1CxQ6pusvhvIulOTmq 043I7DAkJKo1BGZVRNc/frCoZNFyMX6CuHY3o= Message-ID: <4A38355B.7000909@gmail.com> Date: Tue, 16 Jun 2009 18:14:19 -0600 From: Robert Hancock User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: braddo@tranceaddict.net CC: linux-kernel@vger.kernel.org Subject: Re: PAT support (or lack of) for Pentium 3 CPU's References: <20090616080904.CCA17C3A@resin11.mta.everyone.net> In-Reply-To: <20090616080904.CCA17C3A@resin11.mta.everyone.net> 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 On 06/16/2009 09:09 AM, Brad Allen wrote: > It has come to my attention that PAT support has been disabled for P3 CPU's in kernel versions 2.6.30 and later due to a bug in the CPU. > > I have attempted to get the NVIDIA proprietary drivers working with these kernel versions and 3 different Pentium 3 motherboards, all have failed. The drivers seem to require PAT support in order to work correctly, each board has in fact produced a different error when using only MTRR. > > Can a kernel option be added to enable/disable PAT for P3 CPU's? Or is there any possible workaround for the bug? > > I'd be interested to hear from Radeon users running a 2.6.30 or later kernel. > > For anyone wondering why I still use such an old machine, I require ISA support. What's the error(s) you are getting? PAT support was only added fairly recently, so obviously the driver should not require it for operation.