From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755288Ab3HaARp (ORCPT ); Fri, 30 Aug 2013 20:17:45 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:25840 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751896Ab3HaARo (ORCPT ); Fri, 30 Aug 2013 20:17:44 -0400 X-Authority-Analysis: v=2.0 cv=ddwCLAre c=1 sm=0 a=Sro2XwOs0tJUSHxCKfOySw==:17 a=Drc5e87SC40A:10 a=JDI8IL8UnGoA:10 a=5SG0PmZfjMsA:10 a=kj9zAlcOel0A:10 a=meVymXHHAAAA:8 a=KGjhK52YXX0A:10 a=BKUXQ1-ENX0A:10 a=oGMlB6cnAAAA:8 a=wOi4EB80K7dENFIYKtwA:9 a=CjuIK1q_8ugA:10 a=CY6gl2JlH4YA:10 a=cF139LqdMeMA:10 a=hZlwetKCklQA:10 a=Sro2XwOs0tJUSHxCKfOySw==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 67.255.60.225 Date: Fri, 30 Aug 2013 20:17:41 -0400 From: Steven Rostedt To: "H. Peter Anvin" Cc: Jan Kiszka , Fenghua Yu , Linux Kernel Mailing List , x86 , Ingo Molnar , Thomas Gleixner Subject: Re: x86-32: Early microcode loading stumbles over disabled DYNAMIC_FTRACE Message-ID: <20130830201741.07fea07f@gandalf.local.home> In-Reply-To: <52210537.2070805@zytor.com> References: <5217908E.2040702@siemens.com> <5220BC1A.3030108@zytor.com> <20130830115142.1ee4c825@gandalf.local.home> <5220C9C6.5020808@zytor.com> <20130830130331.1e260e85@gandalf.local.home> <52210537.2070805@zytor.com> X-Mailer: Claws Mail 3.9.2 (GTK+ 2.24.20; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 30 Aug 2013 13:48:55 -0700 "H. Peter Anvin" wrote: > >> You *could* bail out of the calling address is < PAGE_OFFSET. > > Anyway... can we add this to the static tracing code? It is two > instructions and is only needed on x86-32. For performance, use dynamic. Sure, do you want to add it ? -- Steve