Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263024AbUKRVrs (ORCPT ); Thu, 18 Nov 2004 16:47:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261181AbUKRVpp (ORCPT ); Thu, 18 Nov 2004 16:45:45 -0500 Received: from mx1.redhat.com ([66.187.233.31]:51338 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S263009AbUKRVol (ORCPT ); Thu, 18 Nov 2004 16:44:41 -0500 Date: Thu, 18 Nov 2004 16:44:31 -0500 From: Dave Jones To: Magnus Damm Cc: linux-kernel@vger.kernel.org Subject: Re: e820 and shared VGA memory problem Message-ID: <20041118214431.GC1347@redhat.com> Mail-Followup-To: Dave Jones , Magnus Damm , linux-kernel@vger.kernel.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 762 Lines: 17 On Thu, Nov 18, 2004 at 10:20:48PM +0100, Magnus Damm wrote: > So, the CMOS setup, the BIOS changelog, the e820 data all seem to > think that 16 MiB are used as VGA RAM. But I suspect that the extreme > slowdowns are because 32 MiB VGA RAM is used. Any ideas? Is the BIOS > funky, or are we doing something wrong in the kernel? In the past such problems have been attributed to BIOS's not setting up MTRRs correctly, or in extreme situations, running out of available MTRRS. How does /proc/mtrr look ? Dave - 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/