From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261978AbVCQSGd (ORCPT ); Thu, 17 Mar 2005 13:06:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261981AbVCQSGd (ORCPT ); Thu, 17 Mar 2005 13:06:33 -0500 Received: from bay101-f38.bay101.hotmail.com ([64.4.56.48]:59901 "EHLO hotmail.com") by vger.kernel.org with ESMTP id S261978AbVCQSGb (ORCPT ); Thu, 17 Mar 2005 13:06:31 -0500 Message-ID: X-Originating-IP: [64.4.56.200] X-Originating-Email: [peter_w_morreale@hotmail.com] From: "Peter W. Morreale" To: linux-kernel@vger.kernel.org Subject: Kernel memory limits? Date: Thu, 17 Mar 2005 11:06:19 -0700 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 17 Mar 2005 18:06:19.0751 (UTC) FILETIME=[05467770:01C52B1C] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org (I did not see this addressed in the FAQs...) How much physical memory can the 2.4.26 kernel address in kernel context on x86? What about DMA memory? Local rumor says ~1GB. But this makes little sense given a 32-bit address. Where in the source can I learn more about this? Thanks, -PWM