Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758152AbYCVVV4 (ORCPT ); Sat, 22 Mar 2008 17:21:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755395AbYCVVVr (ORCPT ); Sat, 22 Mar 2008 17:21:47 -0400 Received: from rv-out-0910.google.com ([209.85.198.187]:10524 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753012AbYCVVVr (ORCPT ); Sat, 22 Mar 2008 17:21:47 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Gir8JBHQ8KP4U6SDI8MmIr1S/r3jrSeKpfHwHufbrzFgfZJJ1TFudKpLSswcOhoC86j9qm47jpvw3XfxSnkeCKGq4if9GZ2GnOge6UucpIeqe8204Zn2Ws+fZctLeoQVuGCQdcMnMtqzqRUombRYPUBDMAhGOkxc43BUCnMktIU= Message-ID: <86802c440803221421i544dc896qb63750237ffc50c4@mail.gmail.com> Date: Sat, 22 Mar 2008 14:21:45 -0700 From: "Yinghai Lu" To: "H. Peter Anvin" Subject: Re: [PATCH] x86_64: early memtest to find bad ram Cc: "Arjan van de Ven" , yhlu.kernel.send@gmail.com, "Andrew Morton" , "Ingo Molnar" , "kernel list" In-Reply-To: <47E57393.7060606@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200803202358.33722.yhlu.kernel@gmail.com> <20080322134814.7258ff0c@laptopd505.fenrus.org> <47E57393.7060606@zytor.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 24 On Sat, Mar 22, 2008 at 2:01 PM, H. Peter Anvin wrote: > Arjan van de Ven wrote: > > On Thu, 20 Mar 2008 23:58:33 -0700 > > Yinghai Lu wrote: > > > >> do simple memtest after init_memory_mapping > >> > >> use find_e820_area_size to find all ram range that is not reserved. > > > > be careful, there's some special memory that e820 right now says is not reserved, > > but still has bios data (the first 4Kb of memory come to mind) > > > > Is that true even after Yinghai's changes? I have lost track of all the > patches... find_e820_area_size should be safe. YH -- 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/