From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755313Ab3KUXhc (ORCPT ); Thu, 21 Nov 2013 18:37:32 -0500 Received: from cavan.codon.org.uk ([93.93.128.6]:38561 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755051Ab3KUXh0 (ORCPT ); Thu, 21 Nov 2013 18:37:26 -0500 Date: Thu, 21 Nov 2013 23:37:05 +0000 From: Matthew Garrett To: "H. Peter Anvin" Cc: Jerry Hoemann , rob@landley.net, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, matt.fleming@intel.com, yinghai@kernel.org, akpm@linux-foundation.org, bp@suse.de, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, penberg@kernel.org, mingo.kernel.org@gmail.com, vgoyal@redhat.com Subject: Re: [RFC v2 0/2] Early use of boot service memory Message-ID: <20131121233705.GA32121@srcf.ucam.org> References: <1385067686-73500-1-git-send-email-jerry.hoemann@hp.com> <20131121230744.GA31592@srcf.ucam.org> <528E94D1.2050809@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <528E94D1.2050809@zytor.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 21, 2013 at 03:18:41PM -0800, H. Peter Anvin wrote: > On 11/21/2013 03:07 PM, Matthew Garrett wrote: > > This is a problem we have to solve, but I don't think this is the right > > way to solve it. Why do we not just reattempt to perform the allocation > > immediately after we've freed the boot services regions? > > > > Wouldn't the memory map already have gotten scrambled all to hell by then? If we couldn't map a 64MB region in low memory earlier then it's likely to have been because there was a 64MB or greater boot services region. -- Matthew Garrett | mjg59@srcf.ucam.org