Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932118AbWITRbg (ORCPT ); Wed, 20 Sep 2006 13:31:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932114AbWITRbf (ORCPT ); Wed, 20 Sep 2006 13:31:35 -0400 Received: from opersys.com ([64.40.108.71]:63250 "EHLO www.opersys.com") by vger.kernel.org with ESMTP id S932120AbWITRbe (ORCPT ); Wed, 20 Sep 2006 13:31:34 -0400 Message-ID: <45117D4D.3040408@opersys.com> Date: Wed, 20 Sep 2006 13:41:33 -0400 From: Karim Yaghmour Reply-To: karim@opersys.com Organization: Opersys inc. User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.0.6) Gecko/20060804 Fedora/1.0.4-0.5.1.fc5 SeaMonkey/1.0.4 MIME-Version: 1.0 To: Masami Hiramatsu CC: Martin Bligh , prasanna@in.ibm.com, Andrew Morton , "Frank Ch. Eigler" , Ingo Molnar , Mathieu Desnoyers , Paul Mundt , linux-kernel , Jes Sorensen , Tom Zanussi , Richard J Moore , Michel Dagenais , Christoph Hellwig , Greg Kroah-Hartman , Thomas Gleixner , William Cohen , ltt-dev@shafik.org, systemtap@sources.redhat.com, Alan Cox Subject: Re: [PATCH] Linux Kernel Markers References: <20060918234502.GA197@Krystal> <20060919081124.GA30394@elte.hu> <451008AC.6030006@google.com> <20060919154612.GU3951@redhat.com> <4510151B.5070304@google.com> <20060919093935.4ddcefc3.akpm@osdl.org> <45101DBA.7000901@google.com> <20060919063821.GB23836@in.ibm.com> <45102641.7000101@google.com> <20060919070516.GD23836@in.ibm.com> <451030A6.6040801@google.com> <45105B5E.9080107@opersys.com> <451141B1.40803@hitachi.com> In-Reply-To: <451141B1.40803@hitachi.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 840 Lines: 36 Hello Hiramatsu-san, So here's a more intelligent answer than last time :) Masami Hiramatsu wrote: > This method is very similar to the djprobe. > And I had gotten the same idea to support preemptive kernel. ... > This means the below code, doesn't this? > --- > jmp 1f /* short jump consumes 2 bytes */ > nop > nop > nop > 1: > --- YES, as pointed out by Mathieu, this does essentially the same. And, yes, as mentioned earlier, this should work fine on preemptable kernels. > I think the djprobe can provide most of functionalities which > your idea requires. Indeed. Thanks, Karim - 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/