From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937241AbXGUIQn (ORCPT ); Sat, 21 Jul 2007 04:16:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S935486AbXGUIQE (ORCPT ); Sat, 21 Jul 2007 04:16:04 -0400 Received: from www.osadl.org ([213.239.205.134]:41468 "EHLO mail.tglx.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S935080AbXGUIQB (ORCPT ); Sat, 21 Jul 2007 04:16:01 -0400 Subject: Re: [RFC, Announce] Unified x86 architecture, arch/x86 From: Thomas Gleixner To: Andi Kleen Cc: Adrian Bunk , Steven Rostedt , Michal Piotrowski , LKML , Linus Torvalds , Andrew Morton , Ingo Molnar , Arjan van de Ven , Chris Wright In-Reply-To: <200707210942.48444.ak@suse.de> References: <1184970779.4012.38.camel@chaos> <200707210806.12880.ak@suse.de> <20070721073533.GE3801@stusta.de> <200707210942.48444.ak@suse.de> Content-Type: text/plain Date: Sat, 21 Jul 2007 10:15:57 +0200 Message-Id: <1185005757.4012.102.camel@chaos> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 (2.10.1-4.fc7) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2007-07-21 at 09:42 +0200, Andi Kleen wrote: > > > > It happens so often that someone accidentally breaks one architecture > > because he didn't notice the code also gets used on the other > > architecture. > > That's not changing at all. Especially with even more sharing, (than I think > would be prudent) like Thomas treated, you'll likely have to test compile both > for most changes. And a shared code base makes it entirely clear, that you must recheck bot ARCHs when you touch code in there. Right now it is not clear at all. tglx