From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264291AbTLKFsS (ORCPT ); Thu, 11 Dec 2003 00:48:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264353AbTLKFsS (ORCPT ); Thu, 11 Dec 2003 00:48:18 -0500 Received: from umhlanga.stratnet.net ([12.162.17.40]:56988 "EHLO umhlanga.STRATNET.NET") by vger.kernel.org with ESMTP id S264291AbTLKFsQ (ORCPT ); Thu, 11 Dec 2003 00:48:16 -0500 To: William Lee Irwin III Cc: linux-kernel@vger.kernel.org Subject: Re: PROBLEM: Linux 2.6.0-test11 only lets me use 1GB out of 2GB ram. References: <3FD7FCF5.7030109@cyberone.com.au> <3FD801B3.7080604@wmich.edu> <20031211054111.GX8039@holomorphy.com> X-Message-Flag: Warning: May contain useful information X-Priority: 1 X-MSMail-Priority: High From: Roland Dreier Date: 10 Dec 2003 21:48:11 -0800 In-Reply-To: <20031211054111.GX8039@holomorphy.com> Message-ID: <52llpjykf8.fsf@topspin.com> User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Common Lisp) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 11 Dec 2003 05:48:13.0626 (UTC) FILETIME=[5DD791A0:01C3BFAA] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org William> 2:2 splits are at least technically ABI violations, which William> is probably why this isn't merged etc. Applications William> sensitive to it are uncommon. William> Yes, the SVR4 i386 ELF/ABI spec literally mandates William> 0xC0000000 as the top of the process address space. What about the 4G/4G split stuff for x86 (which is in 2.6 as well as the RH EL 3 kernel)? It seems that would be just as big a violation of the ABI... - Roland