From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758339AbZFPPmF (ORCPT ); Tue, 16 Jun 2009 11:42:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754570AbZFPPlz (ORCPT ); Tue, 16 Jun 2009 11:41:55 -0400 Received: from imta-38.everyone.net ([216.200.145.38]:44725 "EHLO omta0106.mta.everyone.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754500AbZFPPly (ORCPT ); Tue, 16 Jun 2009 11:41:54 -0400 X-Greylist: delayed 1970 seconds by postgrey-1.27 at vger.kernel.org; Tue, 16 Jun 2009 11:41:54 EDT X-Eon-Dm: dm24 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Message-Id: <20090616080904.CCA17C3A@resin11.mta.everyone.net> Date: Tue, 16 Jun 2009 08:09:04 -0700 From: "Brad Allen" Reply-To: To: Subject: PAT support (or lack of) for Pentium 3 CPU's X-Eon-Sig: AQLBoNFKN7WQe6VzuQEAAAAB,a5aa390501a373714302ceb4679f78e5 X-Originating-Ip: [114.75.39.251] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Cheers, Brad Allen