From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764654AbYETLw3 (ORCPT ); Tue, 20 May 2008 07:52:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755462AbYETLwQ (ORCPT ); Tue, 20 May 2008 07:52:16 -0400 Received: from bzq-179-150-194.static.bezeqint.net ([212.179.150.194]:58496 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762407AbYETLwO (ORCPT ); Tue, 20 May 2008 07:52:14 -0400 Message-ID: <4832BB6A.8010809@qumranet.com> Date: Tue, 20 May 2008 14:52:10 +0300 From: Avi Kivity User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Andi Kleen CC: Andrew Morton , Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: [PATCH] Make LIST_POISON less deadly References: <1211125094-32167-1-git-send-email-avi@qumranet.com> <87k5hpgqwa.fsf@basil.nowhere.org> <4832B74F.5040402@qumranet.com> <4832BABA.9040809@firstfloor.org> In-Reply-To: <4832BABA.9040809@firstfloor.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andi Kleen wrote: >> Makes sense. I'll send out v3. >> >> Is there a similar range on i386? >> > > Don't think so. Address space is too precious here. > > What you could probably do is to unmap one fixed page in some range > that is always split to 4K pages anyways and use that. Perhaps somewhere > in the 640k-1MB range. But if you're unlucky this might require a > variable, not a constant. > I guess a fixmap would work for this. But then the offsets added to that page would need to be limited to 4K. -- error compiling committee.c: too many arguments to function