From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751657Ab1HFG5j (ORCPT ); Sat, 6 Aug 2011 02:57:39 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:37254 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750917Ab1HFG5h (ORCPT ); Sat, 6 Aug 2011 02:57:37 -0400 Date: Sat, 6 Aug 2011 08:56:35 +0200 From: Ingo Molnar To: Mel Gorman Cc: tglx@linutronix.de, hpa@zytor.com, bruno@ioda-net.ch, mjg@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86: Add reboot quirk for Dell Precision M4600 Message-ID: <20110806065635.GE13220@elte.hu> References: <20110727125651.GH3010@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110727125651.GH3010@suse.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Mel Gorman wrote: > ACPI reboot does not work for Dell Precision M4600. Detect this > machine via DMI and force the use of the PCI reboot method. > > Reported-and-tested-by: Bruno Friedmann > Signed-off-by: Mel Gorman > --- > arch/x86/kernel/reboot.c | 9 +++++++++ > 1 files changed, 9 insertions(+), 0 deletions(-) Weird - ACPI is the default Windows method of reboot - how come it does not work on that box? Does Windows work around this specific machine (unlikely), or is our ACPI boot sequence not 100% compatible with the Windows method (more likely IMO)? Thanks, Ingo