From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030877AbXCNUHL (ORCPT ); Wed, 14 Mar 2007 16:07:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030880AbXCNUHK (ORCPT ); Wed, 14 Mar 2007 16:07:10 -0400 Received: from one.firstfloor.org ([213.235.205.2]:39503 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030877AbXCNUHI (ORCPT ); Wed, 14 Mar 2007 16:07:08 -0400 Date: Wed, 14 Mar 2007 21:07:04 +0100 From: Andi Kleen To: Ingo Molnar Cc: Linus Torvalds , Andi Kleen , Steven Rostedt , linux-kernel@vger.kernel.org, Andrew Morton , Chris Wright , Rusty Russell , Glauber de Oliveira Costa Subject: Re: [PATCH 00/18] Make common x86 arch area for i386 and x86_64 - Take 2 Message-ID: <20070314200704.GB376@one.firstfloor.org> References: <20070314050819.536207642@goodmis.org> <20070314125330.GA13168@elte.hu> <20070314180933.GA12994@elte.hu> <20070314195916.GA5674@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070314195916.GA5674@elte.hu> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > the x86_64 and i386 trees have diverged quite a bit though, so this will > be a major logistical undertaking. And with Andi opposed to > fundamentally it it also lacks a bit of manpower i guess :-/ I'm not fundamentally opposed, just sceptical on the effort:gain ratio. > Andrew's laptop only half a dozen times! ;) But .. in the long run, it's > alot easier to think about unified code. 32-bit x86 will certainly stay > with us for at least 10-20 years, and the best model for maintainance is > having one codebase. Not sure -- i'm often glad I don't have to care about all the old 32bit systems on x86-64. I have no problem with modern 32bit x86 systems, but old x86 tends to be very different from new x86. And all the old erratas are scary. -Andi