From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030694AbXDPOrQ (ORCPT ); Mon, 16 Apr 2007 10:47:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030721AbXDPOrQ (ORCPT ); Mon, 16 Apr 2007 10:47:16 -0400 Received: from nz-out-0506.google.com ([64.233.162.225]:20138 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030694AbXDPOrP (ORCPT ); Mon, 16 Apr 2007 10:47:15 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=N5msGHWVzCaAcRaI71lnRwK7ZSXw+36u3bJc66zD88Ot9+JD2Ajd8vn8EVxr94UCicofaUPGR9hdt2uM5p9dn+x3i6NjPhoQ3M2Jm0JYBfew//sqMoe/bMJSbMIGRBS0vKjBR0v8GPCueJQ//IwmhPlZvO/uoR+MvCO3tsjf64Y= Message-ID: Date: Mon, 16 Apr 2007 22:47:13 +0800 From: "Jeff Chua" To: "Stefan Richter" Subject: Re: 4GB Physical. Less than 3GB in Linux. Cc: linux-kernel@vger.kernel.org, "Fortier,Vincent [Montreal]" In-Reply-To: <46238572.5050203@s5r6.in-berlin.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <46238572.5050203@s5r6.in-berlin.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 4/16/07, Stefan Richter wrote: > The X60 most certainly contains a chipset which severely limits the > amount of accessible RAM due to issues with remapping of PCIe addresses. > Intel explains it somewhere on their web presence. A quick & lazy web > search turned this Intel paper up: > http://www.polywell.com/us/support/faq/4GB_Rev1.pdf Stefan, That's interesting.Thanks for the pointer. I wondered if there's anyone working on a patch for this. I've seen this problem before, just like Vincent, I thought it's only me. Didn't really bother me, until I got a new X60s with 4GB RAM. Thanks, Jeff.