From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271051AbTGVXNk (ORCPT ); Tue, 22 Jul 2003 19:13:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271052AbTGVXNk (ORCPT ); Tue, 22 Jul 2003 19:13:40 -0400 Received: from mail5.bluewin.ch ([195.186.1.207]:2517 "EHLO mail5.bluewin.ch") by vger.kernel.org with ESMTP id S271051AbTGVXNi (ORCPT ); Tue, 22 Jul 2003 19:13:38 -0400 Date: Wed, 23 Jul 2003 01:28:24 +0200 From: Roger Luethi To: Mikael Pettersson Cc: linux-kernel@vger.kernel.org, mingo@redhat.com Subject: Re: APIC support prevents power off Message-ID: <20030722232824.GA3606@k3.hellgate.ch> Mail-Followup-To: Mikael Pettersson , linux-kernel@vger.kernel.org, mingo@redhat.com References: <200307220835.h6M8Zaqd024427@harpo.it.uu.se> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200307220835.h6M8Zaqd024427@harpo.it.uu.se> X-Operating-System: Linux 2.5.75 on i686 X-GPG-Fingerprint: 92 F4 DC 20 57 46 7B 95 24 4E 9E E7 5A 54 DC 1B X-GPG: 1024/80E744BD wwwkeys.ch.pgp.net User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 22 Jul 2003 10:35:36 +0200, Mikael Pettersson wrote: > You really should check if a BIOS update is available. Alright. I tried. If the BIOS is at fault, ASUS hasn't fixed it yet. > Your APM/ACPI config seems Ok, but what does CONFIG_SMP look like? > Enabling SMP disables APM's power off code, unless one boots with > apm=power-off. SMP is off. > Did your kernel have to actually enable the local APIC, or did > the BIOS boot us with it already enabled? Please send me a dmesg $ dmesg|grep APIC Local APIC disabled by BIOS -- reenabling. Found and enabled local APIC! Using local APIC timer interrupts. calibrating APIC timer ... > I can't seem to find any place where we disable the local APIC > on shutdown; reboot seems Ok but not poweroff (as far as I can see). > I think this might explain why some BIOSen hang at poweroff. Quite possibly. Roger