From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2281 invoked by alias); 23 Jun 2007 23:09:51 -0000 Received: (qmail 2271 invoked by uid 22791); 23 Jun 2007 23:09:50 -0000 X-Spam-Check-By: sourceware.org Received: from NaN.false.org (HELO nan.false.org) (208.75.86.248) by sourceware.org (qpsmtpd/0.31) with ESMTP; Sat, 23 Jun 2007 23:09:47 +0000 Received: from nan.false.org (localhost [127.0.0.1]) by nan.false.org (Postfix) with ESMTP id 43B5298180; Sat, 23 Jun 2007 23:09:45 +0000 (GMT) Received: from caradoc.them.org (22.svnf5.xdsl.nauticom.net [209.195.183.55]) by nan.false.org (Postfix) with ESMTP id 0AD129817D; Sat, 23 Jun 2007 23:09:45 +0000 (GMT) Received: from drow by caradoc.them.org with local (Exim 4.67) (envelope-from ) id 1I2Ejx-00028V-4s; Sat, 23 Jun 2007 19:10:01 -0400 Date: Sat, 23 Jun 2007 23:09:00 -0000 From: Daniel Jacobowitz To: Michael Eager Cc: gdb@sources.redhat.com Subject: Re: Non-uniform address spaces Message-ID: <20070623231001.GA8183@caradoc.them.org> Mail-Followup-To: Michael Eager , gdb@sources.redhat.com References: <467D4AE3.7020505@eagercon.com> <20070623212557.GB3448@caradoc.them.org> <467D9503.9060804@eagercon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <467D9503.9060804@eagercon.com> User-Agent: Mutt/1.5.15 (2007-04-09) X-IsSubscribed: yes Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2007-06/txt/msg00225.txt.bz2 On Sat, Jun 23, 2007 at 02:47:47PM -0700, Michael Eager wrote: > I thought most of the HA systems just increased the address size by > one bit and had the high-order bit specify whether the address > was in D or I address space. That's more or less what I said :-) It's a simpler mapping than yours, but still the same approach. However, you need a lot more bits than they do. -- Daniel Jacobowitz CodeSourcery