Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268652AbUJKCov (ORCPT ); Sun, 10 Oct 2004 22:44:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268658AbUJKCov (ORCPT ); Sun, 10 Oct 2004 22:44:51 -0400 Received: from fw.osdl.org ([65.172.181.6]:55176 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S268652AbUJKCot (ORCPT ); Sun, 10 Oct 2004 22:44:49 -0400 Date: Sun, 10 Oct 2004 19:44:41 -0700 (PDT) From: Linus Torvalds To: "Maciej W. Rozycki" cc: =?ISO-8859-1?Q?S=E9rgio_Monteiro_Basto?= , Len Brown , Andrew Morton , Linux Kernel Mailing List , ACPI Developers Subject: Re: [ACPI] Re: [BKPATCH] LAPIC fix for 2.6 In-Reply-To: Message-ID: References: <1097429707.30734.21.camel@d845pe> <1097443183.26647.31.camel@darkstar> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 995 Lines: 30 On Mon, 11 Oct 2004, Maciej W. Rozycki wrote: > > How about only disabling the APIC if power-management is in use? No. You cannot test for SMM. Full stop. That's the whole _point_ of SMM. It's hidden away. Why do you care? If you have a machine with this problem, just use the "lapic" command line. We do NOT default to unsafe values. > I don't like the idea of "punishing" good hardware, because something > behaves ill out there. We don't punish good hardware. We punish _bad_ hardware. The kind of hardware that has a BIOS that has disabled the local APIC. Try to get your BIOS updated if you want to consider your hardware "good". And if the hw vendor doesn't have a fixed BIOS, then don't call it good, and use "lapic". Linus - 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/