From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760275AbYDPJaP (ORCPT ); Wed, 16 Apr 2008 05:30:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755252AbYDPJaB (ORCPT ); Wed, 16 Apr 2008 05:30:01 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:34306 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754298AbYDPJaA (ORCPT ); Wed, 16 Apr 2008 05:30:00 -0400 Date: Wed, 16 Apr 2008 11:29:48 +0200 From: Ingo Molnar To: yhlu.kernel@gmail.com Cc: Thomas Gleixner , Andrew Morton , "H. Peter Anvin" , kernel list Subject: Re: [PATCH] x86_64: allocate gart aperture from 512M Message-ID: <20080416092948.GF5343@elte.hu> References: <200804142040.37701.yhlu.kernel@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200804142040.37701.yhlu.kernel@gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Yinghai Lu wrote: > [PATCH] x86_64: allocate gart aperture from 512M > > because we try to reserve dma32 early, so we have chance to get > aperture from 64M > > with some sequence aperture allocated from RAM, could become > E820_RESERVED. > > and then if folling up one kexec one big kernel that uncompressed size > is above > > 64M could have conflict with still using gart. > > So allocate gart aperture from 512M instead. > > Also change the fallback_aper_order to 5, because we don't have chance > to get 2G or 4G aperture. thanks, applied. Ingo