Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754898AbYHYKdV (ORCPT ); Mon, 25 Aug 2008 06:33:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753573AbYHYKdK (ORCPT ); Mon, 25 Aug 2008 06:33:10 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:40567 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753467AbYHYKdI (ORCPT ); Mon, 25 Aug 2008 06:33:08 -0400 Date: Mon, 25 Aug 2008 12:32:57 +0200 From: Ingo Molnar To: Avi Kivity Cc: "Eric W. Biederman" , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [PATCH] x86: default to reboot via ACPI Message-ID: <20080825103257.GC15810@elte.hu> References: <1219659087-17536-1-git-send-email-avi@qumranet.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1219659087-17536-1-git-send-email-avi@qumranet.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian 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 Content-Length: 900 Lines: 24 * Avi Kivity wrote: > Triple-fault and keyboard reset may assert INIT instead of RESET; > however INIT is blocked when Intel VT is enabled. This leads to a > partially reset machine when invoking emergency_restart via sysrq-b: > the processor is still working but other parts of the system are dead. > > Default to rebooting via ACPI, which correctly asserts RESET and > reboots the machine. > > This is safe since we will fall back to keyboard reset and triple > fault if acpi is not enabled or if the reset is not successful. > > Signed-off-by: Avi Kivity applied to tip/x86/reboot - thanks Avi! Ingo -- 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/