From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422968AbXCOQ6Z (ORCPT ); Thu, 15 Mar 2007 12:58:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422971AbXCOQ6Z (ORCPT ); Thu, 15 Mar 2007 12:58:25 -0400 Received: from ms-smtp-03.nyroc.rr.com ([24.24.2.57]:53655 "EHLO ms-smtp-03.nyroc.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422968AbXCOQ6Y (ORCPT ); Thu, 15 Mar 2007 12:58:24 -0400 Subject: Re: [PATCH 00/18] Make common x86 arch area for i386 and x86_64 - Take 2 From: Steven Rostedt To: Andi Kleen Cc: Linus Torvalds , Martin Bligh , Ingo Molnar , linux-kernel@vger.kernel.org, Andrew Morton , Chris Wright , Rusty Russell , Glauber de Oliveira Costa In-Reply-To: <1173977264.7922.24.camel@localhost.localdomain> References: <20070314050819.536207642@goodmis.org> <20070314125330.GA13168@elte.hu> <45F96B57.10206@mbligh.org> <20070315160648.GA11812@one.firstfloor.org> <1173977264.7922.24.camel@localhost.localdomain> Content-Type: text/plain Date: Thu, 15 Mar 2007 12:57:19 -0400 Message-Id: <1173977839.7922.27.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2007-03-15 at 12:47 -0400, Steven Rostedt wrote: > On Thu, 2007-03-15 at 17:06 +0100, Andi Kleen wrote: > > > Well I just see a lot of pain from these patches but I doubt > > they will avoid any bugs. If people don't compile test both > > archs they will always likely break on another. There are lots > > of subtle dependencies that are not expressed in the pathname > > even after this intrusive operation (e.g. in the includes). [...] > With the proposed patch set, what can break i386 by modifying something > in arch/x86_64, or what can break x86_64 by modifying something in > arch/i386? (not counting the unfinished pci shared code). Oops, sorry, you did say "in the includes". Yeah, that holds the same crap that I'm talking about. $ cat include/asm-i386/stacktrace.h #include Which isn't something that I would like to stay either. So it's just something else that needs to be fixed. Not something that will circumvent what the current patch set is trying to do. -- Steve