Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752365AbXBEJhb (ORCPT ); Mon, 5 Feb 2007 04:37:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752368AbXBEJhb (ORCPT ); Mon, 5 Feb 2007 04:37:31 -0500 Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:54224 "EHLO ebiederm.dsl.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752365AbXBEJha convert rfc822-to-8bit (ORCPT ); Mon, 5 Feb 2007 04:37:30 -0500 From: ebiederm@xmission.com (Eric W. Biederman) To: Andi Kleen Cc: Linus Torvalds , =?iso-8859-1?Q?Fr=E9d?= =?iso-8859-1?Q?=E9ric?= Riss , Andrew Morton , Matt Domsch , Adrian Bunk , Linux Kernel Mailing List , Trond Myklebust , Neil Brown , Stephen Hemminger , Benjamin Herrenschmidt , Jeff Garzik , Francois Romieu Subject: Re: 2.6.20-rc7: known regressions References: <1170594788.5217.4.camel@funkylaptop> <200702050926.51007.ak@suse.de> Date: Mon, 05 Feb 2007 02:35:32 -0700 In-Reply-To: <200702050926.51007.ak@suse.de> (Andi Kleen's message of "Mon, 5 Feb 2007 09:26:50 +0100") Message-ID: User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1317 Lines: 35 Andi Kleen writes: > On Sunday 04 February 2007 18:34, Linus Torvalds wrote: >> >> On Sun, 4 Feb 2007, Fr?d?ric Riss wrote: >> > >> > New patch: >> >> I didn't get how this would fix the ia64 issues? I thought ia64 needed >> the standard calling convention? > > asmlinkage is standard enough on ia64 as far as I can see. > > It defines to an undocumented attribute that seems to only affect the > generated code for functions (basically it forces the compiler > to not reuse input arguments, similar to prevent_tail_call() on i386), > not for pointers. Regardless. If we are serious about supporting EFI instead of just nursing it along for the rare person stuck with it, we are going to need to remove the brain-dead relocate exactly once to virtual addresses call, so we can use kexec. Therefore we will need a trampoline to switch to physical mode. Of course that presumes the Open (but no one is allowed to read or implement the standard, or join the committee ) EFI is sufficiently interesting at some point to bother supporting properly. Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/