From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [PATCH] x86/ACPI: Make Sony Vaio Z1 series to use "reboot=pci" default Date: Fri, 25 Oct 2013 13:48:24 +0100 Message-ID: <526A6898.8030806@zytor.com> References: <1382597377-26797-1-git-send-email-tianyu.lan@intel.com> <20131025105352.GA5419@gmail.com> <20131025124402.GA7089@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from terminus.zytor.com ([198.137.202.10]:53544 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751284Ab3JYMtC (ORCPT ); Fri, 25 Oct 2013 08:49:02 -0400 In-Reply-To: <20131025124402.GA7089@redhat.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Dave Jones , Ingo Molnar , tianyu.lan@intel.com, Matthew Garrett , x86@kernel.org, holt@sgi.com, davej@fedoraproject.org, lenb@kernel.org, rjw@rjwysocki.net, awilliam@redhat.com, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Linus Torvalds , Thomas Gleixner On 10/25/2013 01:44 PM, Dave Jones wrote: > > I have a few machines at home that have the same problem. > There does seem to be a number of vendor wide issues here. Pretty much > every vaio and every Dell seems to need working around. > The Dell problem I believe is understood... they are invoking the KBC as their ACPI reboot port, and it is believed that that triggers an SMI which invokes the BIOS, and the BIOS is broken if you behave like a non-Windows system. -hpa