From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753039Ab0JSO4o (ORCPT ); Tue, 19 Oct 2010 10:56:44 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44304 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752229Ab0JSO4n (ORCPT ); Tue, 19 Oct 2010 10:56:43 -0400 X-User-Agent: K-9 Mail for Android References: <4CBAE8E2.1060704@redhat.com> <4CBBF3C8.9070104@web.de> <4CBC1047.6010501@redhat.com> <20101018125803.GA2497@darkstar> <4CBC4B06.3030300@redhat.com> <20101018134508.GA11885@darkstar> <4CBC4FA9.90406@redhat.com> <4CBC5097.1020105@redhat.com> <20101018135813.GA20316@darkstar> <4CBC547A.8080700@redhat.com> <4CBC964B.6000605@zytor.com> <4CBD099D.2060500@zytor.com> <4CBD5D8F.6020505@redhat.com> In-Reply-To: <4CBD5D8F.6020505@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Subject: Re: [BUG] kvm: guest can not startup due to triple fault From: "H. Peter Anvin" Date: Tue, 19 Oct 2010 07:56:07 -0700 To: Avi Kivity , Dave Young CC: Ingo Molnar , Jan Kiszka , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Message-ID: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Right... note in particular that the BIOS sets them up inconsistently. The kernel is doing the rufht thing: since NX isn't available on all processors it is considered unavailable. "Avi Kivity" wrote: > On 10/19/2010 08:55 AM, Dave Young wrote: >> > OK. Please install msr-tools on your system, and give us the outputs of: >> > >> > rdmsr -p 0 -xc 0x1a0 >> 0x1764952489 >> >> > rdmsr -p 1 -xc 0x1a0 >> 0x1364952489 >> > >That's MSR_IA32_MISC_ENABLE_XD_DISABLE. Looks like the kernel never >plays with it. > >Suggest: >- updating your BIOS >- playing with the NX feature in your BIOS setup screens > > >-- >error compiling committee.c: too many arguments to function > -- Sent from my mobile phone. Please pardon any lack of formatting.