From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753782Ab2EaUjp (ORCPT ); Thu, 31 May 2012 16:39:45 -0400 Received: from terminus.zytor.com ([198.137.202.10]:58087 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751430Ab2EaUjn (ORCPT ); Thu, 31 May 2012 16:39:43 -0400 Message-ID: <4FC7D6EC.3000904@zytor.com> Date: Thu, 31 May 2012 13:39:08 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 MIME-Version: 1.0 To: Steven Rostedt CC: linux-kernel@vger.kernel.org, Ingo Molnar , Andrew Morton , Peter Zijlstra , Frederic Weisbecker , Masami Hiramatsu , Dave Jones , Andi Kleen Subject: Re: [PATCH 4/5] x86: Allow nesting of the debug stack IDT setting References: <20120531012829.160060586@goodmis.org> <20120531020441.500105258@goodmis.org> <4FC7BF59.3070906@zytor.com> <1338492300.13348.384.camel@gandalf.stny.rr.com> <4FC7C62C.1020807@zytor.com> <1338494431.13348.410.camel@gandalf.stny.rr.com> <4FC7D1F7.8090405@zytor.com> <1338496555.13348.429.camel@gandalf.stny.rr.com> In-Reply-To: <1338496555.13348.429.camel@gandalf.stny.rr.com> X-Enigmail-Version: 1.4.1 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/31/2012 01:35 PM, Steven Rostedt wrote: > > Thus only the debug stack does the stack TSS trick. > > Is this what you were looking for? (God, it just shows how much time > I've been spending on this crap, as I was able to find all this by > memory and not grepping for it :-p ) > That's why I asked instead of pulled it up myself. However, what is missing is what the permitted transitions are. This affects the options. -hpa