From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756539AbYEDOgc (ORCPT ); Sun, 4 May 2008 10:36:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751149AbYEDOgX (ORCPT ); Sun, 4 May 2008 10:36:23 -0400 Received: from smtpq1.groni1.gr.home.nl ([213.51.130.200]:36075 "EHLO smtpq1.groni1.gr.home.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751117AbYEDOgW (ORCPT ); Sun, 4 May 2008 10:36:22 -0400 Message-ID: <481DCA14.9030302@keyaccess.nl> Date: Sun, 04 May 2008 16:37:08 +0200 From: Rene Herman User-Agent: Thunderbird 2.0.0.14 (X11/20080421) MIME-Version: 1.0 To: Fabio De Francesco CC: linux-kernel@vger.kernel.org Subject: Re: [x86_32] With 4GB installed, in which cases low mem total is less than 896MB? References: <200804301702.06019.fabiomdf@alice.it> In-Reply-To: <200804301702.06019.fabiomdf@alice.it> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -1.0 (-) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 30-04-08 17:02, Fabio De Francesco wrote: > I've got a Linux box, Intel Core 2 T7700 with 4GB RAM installed, with > vanilla kernel 2.6.24 + TuxOnIce patch-set compiled for x86_32bit > (CONFIG_X86_32=y), whose /proc/meminfo shows "LowTotal 794MB". > > I've always known that, in this specific platform, Linux permanently maps > 896MB as "Low Memory" into its linear address space (as this last value > is the one /proc/meminfo shows in the other two x86_32bit computers I > own). Others have already answered as well so this just as by the way and just in case... why are you running a 32-bit kernel on it? Rene.