Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750825AbWITLu4 (ORCPT ); Wed, 20 Sep 2006 07:50:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751155AbWITLuz (ORCPT ); Wed, 20 Sep 2006 07:50:55 -0400 Received: from ns.suse.de ([195.135.220.2]:24217 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1750825AbWITLuz (ORCPT ); Wed, 20 Sep 2006 07:50:55 -0400 To: Alan Cox Cc: prasanna@in.ibm.com, Andrew Morton , Mathieu Desnoyers , "Frank Ch. Eigler" , Greg Kroah-Hartman , Christoph Hellwig , Jes Sorensen , Paul Mundt , linux-kernel , ltt-dev@shafik.org, Martin Bligh , Michel Dagenais , Ingo Molnar , systemtap@sources.redhat.com, systemtap-owner@sourceware.org, Thomas Gleixner , William Cohen , Tom Zanussi Subject: Re: [PATCH] Linux Kernel Markers References: <1158748327.7705.3.camel@localhost.localdomain> From: Andi Kleen Date: 20 Sep 2006 13:50:53 +0200 In-Reply-To: <1158748327.7705.3.camel@localhost.localdomain> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 994 Lines: 18 Alan Cox writes: > Ar Mer, 2006-09-20 am 09:18 +0100, ysgrifennodd Richard J Moore: > > > Are you referring to Intel erratum "unsynchronized cross-modifying code" > > > - where it refers to the practice of modifying code on one processor > > > where another has prefetched the unmodified version of the code. > > > In the special case of replacing an opcode with int3 that erratum doesn't > > apply. I know that's not in the manuals but it has been confirmed by the > > Intel microarchitecture group. And it's not reasonable to it to be any > > other way. > > Ok thats cool to know and I wish they'd documented it. Is the same true > for AMD ? It pretty much has to, otherwise lots of debuggers would be unhappy -Andi - 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/