Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764431AbXFERVR (ORCPT ); Tue, 5 Jun 2007 13:21:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753393AbXFERVH (ORCPT ); Tue, 5 Jun 2007 13:21:07 -0400 Received: from outbound-mail-09.bluehost.com ([69.89.17.209]:53455 "HELO outbound-mail-09.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753185AbXFERVG (ORCPT ); Tue, 5 Jun 2007 13:21:06 -0400 From: Jesse Barnes To: Andi Kleen Subject: Re: Intel's response Linux/MTRR/8GB Memory Support / Why doesn't the kernel realize the BIOS has problems and re-map appropriately? Date: Tue, 5 Jun 2007 10:20:37 -0700 User-Agent: KMail/1.9.6 Cc: "Eric W. Biederman" , Yinghai Lu , Alan Cox , Justin Piszcz , linux-kernel@vger.kernel.org References: <20070605094623.GA23274@one.firstfloor.org> In-Reply-To: <20070605094623.GA23274@one.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200706051020.37812.jbarnes@virtuousgeek.org> X-Identified-User: {642:box128.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 76.102.120.196 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 699 Lines: 17 On Tuesday, June 5, 2007 2:46 am Andi Kleen wrote: > > So the only safe thing we can do is not use memory that is not > > write-back cached. That we can positively detect and is a > > conservative action so if anything will work that will. > > Jesse wrote such a patch (or rather it limitted end_pfn), but it > broke the X server for so far unknown reasons. It looks like I broke the /proc/mtrr interface somehow... I'll try to fix it tomorrow. Jesse - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/