Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753947AbaDDPqR (ORCPT ); Fri, 4 Apr 2014 11:46:17 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:54404 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753605AbaDDPqK (ORCPT ); Fri, 4 Apr 2014 11:46:10 -0400 Date: Fri, 4 Apr 2014 16:46:00 +0100 From: Matthew Garrett To: "H. Peter Anvin" Cc: "Li, Aubrey" , Steven Rostedt , Ingo Molnar , Linus Torvalds , LKML , Thomas Gleixner Subject: Re: [BUG] x86: reboot doesn't reboot Message-ID: <20140404154600.GB14980@srcf.ucam.org> References: <20140403121314.246b03a7@gandalf.local.home> <533DED74.6050202@linux.intel.com> <20140403194018.7c67aec7@gandalf.local.home> <533DF455.4040908@linux.intel.com> <533DF8D2.9060508@zytor.com> <533E0A94.5040007@linux.intel.com> <20140404151203.GA12370@srcf.ucam.org> <533ECC2C.6090505@zytor.com> <20140404153634.GA14519@srcf.ucam.org> <533ED247.9040602@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <533ED247.9040602@zytor.com> User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 04, 2014 at 08:39:51AM -0700, H. Peter Anvin wrote: > > There are several platforms where the default boot method invokes an SMM > handler which blithly assumes that the hardware is in whatever state > Windows leaves it in, and hangs otherwise. This seems to include nearly > all Dell systems. So it isn't really quite that simple... That's the story of all firmware, ever. -- Matthew Garrett | mjg59@srcf.ucam.org -- 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/