Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760882AbZLJPJJ (ORCPT ); Thu, 10 Dec 2009 10:09:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751161AbZLJPJI (ORCPT ); Thu, 10 Dec 2009 10:09:08 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34698 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751122AbZLJPJH (ORCPT ); Thu, 10 Dec 2009 10:09:07 -0500 To: Ingo Molnar Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, utrace-devel Subject: Re: [RFC] [PATCH] In-kernel gdbstub based on utrace Infrastructure. References: <1259588232.20516.307.camel@laptop> <20091130150314.GA10331@redhat.com> <20091130151650.GA24316@elte.hu> <20091130152910.GB10331@redhat.com> <20091201161132.GA24897@elte.hu> <20091201170002.GD10331@redhat.com> <20091201170954.GA4699@elte.hu> <20091201174534.GE10331@redhat.com> <20091201211518.GA32376@elte.hu> <20091208215829.GA19793@redhat.com> <20091210074158.GI16874@elte.hu> From: fche@redhat.com (Frank Ch. Eigler) Date: Thu, 10 Dec 2009 10:08:57 -0500 In-Reply-To: <20091210074158.GI16874@elte.hu> (Ingo Molnar's message of "Thu, 10 Dec 2009 08:41:58 +0100") Message-ID: User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1109 Lines: 26 Ingo Molnar writes: > [...] Since the speed of development in this area is truly glacial > at the moment and the practical advantages that i can experience > personally (directly as a Linux user and indirectly as a maintainer) > are miniscule so far, caution is warranted IMO. [...] If the "caution" you suggest is operationally equivalent to discouraging even miniscule improvements, is it any wonder that progress is glacial? The gdbstub prototype was constructed for two reasons: to demonstrate utrace usage now, and in the future to be incrementally useful (over ptrace, by moving into fast kernel-space operations like multithreading control, gdb-tracepoint support, other stuff). #1 is about done. With respect to #2, we can certainly commit to ongoing work on improvements, provided the community shows interest and goodwill. - FChE -- 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/