Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 20 Jun 2002 10:18:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 20 Jun 2002 10:18:45 -0400 Received: from noc.mainstreet.net ([207.5.0.45]:50705 "EHLO noc.mainstreet.net") by vger.kernel.org with ESMTP id ; Thu, 20 Jun 2002 10:18:44 -0400 From: devnull@adc.idt.com Date: Thu, 20 Jun 2002 10:18:25 -0400 (EDT) X-X-Sender: Reply-To: To: Brian Gerst cc: Subject: Re: >3G Memory support In-Reply-To: <3D114C27.4000801@quark.didntduck.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 892 Lines: 31 > > > > When i compiled my kernel, i set CONFIG_HIGHMEM4G. > > > > Does this mean that all my programs should be able to address 4G ? > > No. It means the kernel can access all 4GB of memory. For memory above > the 950MB that it can directly map, it needs to use dynamic mappings > (kmap). User space is always 3GB virtual space per process, regardless > of the highmem setting. Is there a way to make a process in the user space to able to access 4GB at all. What limits user space to 3GB. If not in current 2.4.x / 2.5.x, is this something planned in the future releases ? Thanks for your time. Regards, /dev/null devnull@adc.idt.com - 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/