From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935341AbWKZMJR (ORCPT ); Sun, 26 Nov 2006 07:09:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S935342AbWKZMJQ (ORCPT ); Sun, 26 Nov 2006 07:09:16 -0500 Received: from highlandsun.propagation.net ([66.221.212.168]:19466 "EHLO highlandsun.propagation.net") by vger.kernel.org with ESMTP id S935341AbWKZMJQ (ORCPT ); Sun, 26 Nov 2006 07:09:16 -0500 Message-ID: <456983E2.2060007@highlandsun.com> Date: Sun, 26 Nov 2006 04:09:06 -0800 From: Howard Chu User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20061116 Netscape/7.2 (ax) Firefox/1.5 SeaMonkey/1.5a MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: re: skge error; hangs w/ hardware memory hole (was re: X86_64 + VIA + 4g problems) References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org References: <20060703205238.GA10851@deprecation.cyrius.com> Just to tie up a loose end... I tested Andi Kleen's new patch for this issue on 2.6.18.3. While the patch didn't automatically detect the VIA chipset in my Asus A8V Deluxe, it allowed me to manually set a boot option that fixes the problem (by disabling DMA to addresses over 4GB). The fix is essentially the same as Andi posted here http://groups.google.com/group/linux.kernel/msg/b1e820ef0212ee5e although you have to patch pci-dma.c now, not pci-gart.c. As another note - with my AGP aperture set to only 64MB, 3904MB are visible. With the aperture set to 256MB, the full 4096MB are visible. -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc OpenLDAP Core Team http://www.openldap.org/project/