Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751194AbWIOU0n (ORCPT ); Fri, 15 Sep 2006 16:26:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751323AbWIOU0n (ORCPT ); Fri, 15 Sep 2006 16:26:43 -0400 Received: from tomts36-srv.bellnexxia.net ([209.226.175.93]:2021 "EHLO tomts36-srv.bellnexxia.net") by vger.kernel.org with ESMTP id S1751194AbWIOU0m (ORCPT ); Fri, 15 Sep 2006 16:26:42 -0400 Date: Fri, 15 Sep 2006 16:26:40 -0400 From: Mathieu Desnoyers To: Alan Cox Cc: Andrew Morton , tglx@linutronix.de, karim@opersys.com, Paul Mundt , Jes Sorensen , Roman Zippel , Ingo Molnar , linux-kernel@vger.kernel.org, Christoph Hellwig , Ingo Molnar , Greg Kroah-Hartman , Tom Zanussi , ltt-dev@shafik.org, Michel Dagenais Subject: Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 Message-ID: <20060915202640.GB23318@Krystal> References: <20060915135709.GB8723@localhost.usen.ad.jp> <450AB5F9.8040501@opersys.com> <450AB506.30802@sgi.com> <450AB957.2050206@opersys.com> <20060915142836.GA9288@localhost.usen.ad.jp> <450ABE08.2060107@opersys.com> <1158332447.5724.423.camel@localhost.localdomain> <20060915111644.c857b2cf.akpm@osdl.org> <1158352633.29932.141.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline In-Reply-To: <1158352633.29932.141.camel@localhost.localdomain> X-Editor: vi X-Info: http://krystal.dyndns.org:8080 X-Operating-System: Linux/2.4.32-grsec (i686) X-Uptime: 16:25:28 up 23 days, 17:34, 2 users, load average: 0.18, 0.28, 0.34 User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 987 Lines: 25 Hi, * Alan Cox (alan@lxorguk.ukuu.org.uk) wrote: > In addition ideally we want a mechanism that is also sufficient that > printk can be mangled into so that you can pull all the printk text > strings _out_ of the kernel and into the debug traces for embedded work. > > [ie you want printk("Oh dear %s exploded.\n", foo->bar); to end up with > "Oh dear %s exploded.\n" out of kernel and in kernel > > tracepoint_printk(foo->bar); > Good idea, trivial to implement on top of LTTng. When seeing printk's reentrancy limitations, I have though about doing it a couple of times. Mathieu OpenPGP public key: http://krystal.dyndns.org:8080/key/compudj.gpg Key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 - 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/