From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 20 Sep 2002 17:13:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 20 Sep 2002 17:13:37 -0400 Received: from deming-os.org ([63.229.178.1]:16907 "EHLO deming-os.org") by vger.kernel.org with ESMTP id ; Fri, 20 Sep 2002 17:13:36 -0400 Message-ID: <3D8B8E5B.FBEF44B3@deming-os.org> Date: Fri, 20 Sep 2002 14:08:43 -0700 From: Russ Lewis X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: is any virtual address space reserved? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Is any of a userland application's virtual address space reserved? Certainly, some memory is used at startup: the code is loaded into some of the virtual space, as well as the stack. There needs to always be enough space for the stack to grow as necessary. But is any of the space actually marked off as "reserved"? If we just mmap'ed the same file over and over again, could we fill the 4Gb address space with identical mappings, or would we run out? Russ -- The Villagers are Online! villagersonline.com .[ (the fox.(quick,brown)) jumped.over(the dog.lazy) ] .[ (a version.of(English).(precise.more)) is(possible) ] ?[ you want.to(help(develop(it))) ]