From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261404AbVFAO7i (ORCPT ); Wed, 1 Jun 2005 10:59:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261405AbVFAO7i (ORCPT ); Wed, 1 Jun 2005 10:59:38 -0400 Received: from [195.23.16.24] ([195.23.16.24]:42899 "EHLO bipbip.comserver-pie.com") by vger.kernel.org with ESMTP id S261404AbVFAO73 (ORCPT ); Wed, 1 Jun 2005 10:59:29 -0400 Message-ID: <429DCD25.3010800@grupopie.com> Date: Wed, 01 Jun 2005 15:58:45 +0100 From: Paulo Marques Organization: Grupo PIE User-Agent: Mozilla Thunderbird 1.0 (X11/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andrea Arcangeli Cc: Ingo Molnar , "Paul E. McKenney" , Esben Nielsen , James Bruce , Nick Piggin , "Bill Huey (hui)" , Andi Kleen , Sven-Thorsten Dietrich , dwalker@mvista.com, hch@infradead.org, akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: RT patch acceptance References: <20050531143051.GL5413@g5.random> <20050531161157.GQ5413@g5.random> <20050531183627.GA1880@us.ibm.com> <20050531204544.GU5413@g5.random> <429DA7AE.5000304@grupopie.com> <20050601135154.GF5413@g5.random> <20050601141919.GA9282@elte.hu> <20050601143202.GI5413@g5.random> <20050601144612.GJ5413@g5.random> In-Reply-To: <20050601144612.GJ5413@g5.random> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrea Arcangeli wrote: > On Wed, Jun 01, 2005 at 04:32:02PM +0200, Andrea Arcangeli wrote: > >>years of doing that in linux. I'm not a lawyer but you may want to >>check before investing too much on this for the next 15 years. The > > Here's a link that may be of interest: > > http://www.fsmlabs.com/openpatentlicense.html > http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=12&f=G&l=50&co1=AND&d=ptxt&s1=5,995,745&OS=5,995,745&RS=5,995,745 Did you read this? All the claims in the "Claims" section of the patent text start with: > providing a real time operating system for running real time tasks and components and non-real time tasks; > > providing a general purpose operating system as one of the non-real time tasks; This seems like the RTAI kind of nano-kernel approach and has nothing to do with the way the RT-PREEMPT patch works, AFAICS. -- Paulo Marques - www.grupopie.com An expert is a person who has made all the mistakes that can be made in a very narrow field. Niels Bohr (1885 - 1962)