Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758714AbXI1E67 (ORCPT ); Fri, 28 Sep 2007 00:58:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754576AbXI1E6w (ORCPT ); Fri, 28 Sep 2007 00:58:52 -0400 Received: from hera.kernel.org ([140.211.167.34]:55170 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753446AbXI1E6v (ORCPT ); Fri, 28 Sep 2007 00:58:51 -0400 From: Len Brown Organization: Intel Open Source Technology Center To: "Rafael J. Wysocki" Subject: Re: Problems with SMP & ACPI powering off Date: Fri, 28 Sep 2007 00:57:44 -0400 User-Agent: KMail/1.9.5 Cc: Mark Lord , Linux Kernel , simon.derr@bull.net References: <46FC20B7.4000606@rtr.ca> <200709280000.53001.rjw@sisk.pl> In-Reply-To: <200709280000.53001.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200709280057.44789.lenb@kernel.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 615 Lines: 16 On Thursday 27 September 2007 18:00, Rafael J. Wysocki wrote: > On Thursday, 27 September 2007 23:29, Mark Lord wrote: > > Question: do we disable all CPUs except 0 when doing ACPI power off? > > No, but we should. We used to. It is absolutely mandatory -- else it confuses the BIOS on some boards b/c it isn't expecting SMM to get entered from other than cpu0. -Len - 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/