From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 29 Jan 2003 12:43:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 29 Jan 2003 12:43:18 -0500 Received: from noodles.codemonkey.org.uk ([213.152.47.19]:24772 "EHLO noodles.internal") by vger.kernel.org with ESMTP id ; Wed, 29 Jan 2003 12:43:17 -0500 Date: Wed, 29 Jan 2003 17:48:42 +0000 From: Dave Jones To: William Lee Irwin III , linux-kernel Subject: Re: no more MTRRs available ? Message-ID: <20030129174842.GE1856@codemonkey.org.uk> Mail-Followup-To: Dave Jones , William Lee Irwin III , linux-kernel References: <20030129162354.55f2ace4.skraw@ithnet.com> <20030129164552.182e0cb8.skraw@ithnet.com> <20030129172001.GM780@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030129172001.GM780@holomorphy.com> User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 29, 2003 at 09:20:01AM -0800, William Lee Irwin III wrote: > Looks better than what I'm getting on 2.5.59: > > curly:~# cat /proc/mtrr > reg00: base=0xc0000000 (49152MB), size=16384MB: uncachable, count=1 > reg01: base=0x00000000 ( 0MB), size=524288MB: write-back, count=1 > reg02: base=0x800000000 (524288MB), size=262144MB: write-back, count=1 > Yes, this is standard ia32 (P-III/Coppermine cpus), and hence the > numbers here are utter garbage. Bizarre. The size field isn't being shifted, and your base is somewhere off in 64bit land. See Andi's "RED-PEN" comments in various parts of arch/i386/kernel/cpu/mtrr/ They need fixing at some point, and could be the cause of your problems. Dave -- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs