Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754145AbaDDAMm (ORCPT ); Thu, 3 Apr 2014 20:12:42 -0400 Received: from terminus.zytor.com ([198.137.202.10]:42577 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754019AbaDDAMj (ORCPT ); Thu, 3 Apr 2014 20:12:39 -0400 Message-ID: <533DF8D2.9060508@zytor.com> Date: Thu, 03 Apr 2014 17:12:02 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: "Li, Aubrey" , Steven Rostedt CC: Ingo Molnar , Linus Torvalds , LKML , Thomas Gleixner , Matthew Garrett Subject: Re: [BUG] x86: reboot doesn't reboot References: <20140403021411.6236996f@gandalf.local.home> <070BEF4AC20468458C22969097656CD91163106C@shsmsx102.ccr.corp.intel.com> <533D001A.5030802@linux.intel.com> <20140403094155.04cc00bc@gandalf.local.home> <533D6BE7.3020608@zytor.com> <20140403104721.5f6c32b6@gandalf.local.home> <20140403111711.5bed4ff7@gandalf.local.home> <533D7C4F.4010504@zytor.com> <533D7C93.7080105@zytor.com> <20140403113921.23dceb75@gandalf.local.home> <533D8516.1040803@zytor.com> <20140403121314.246b03a7@gandalf.local.home> <533DED74.6050202@linux.intel.com> <20140403194018.7c67aec7@gandalf.local.home> <533DF455.4040908@linux.intel.com> In-Reply-To: <533DF455.4040908@linux.intel.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/03/2014 04:52 PM, Li, Aubrey wrote: > On 2014/4/4 7:40, Steven Rostedt wrote: >> On Fri, 04 Apr 2014 07:23:32 +0800 >> "Li, Aubrey" wrote: >> >>> Can you please send the dmi table out? >> >> I already did as a gz attachment to H. Peter. You were on the Cc, did >> you not receive it? >> > Oh, I got it. This is a Preproduction machine. > When reboot failed via a method (=e or =p), there are two case. > > Case 1: this method do nothing, pass the attempt chance to the next method > Case 2: this method hangs the system > > I want to know if CF9 is case 1 or case 2. Could you please try the following > patch *without* any reboot parameters? > > (1) If we didn't see any string, then EFI hangs your box. > (2) if we see the first string but not the second one, CF9 hangs your box > (3) if we see both, couldn't be, because BIOS works on your box. > Given that this machine doesn't have EFI, it seems kind of obvious, no? -hpa -- 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/