From owner-freebsd-chat Sat May 26 19:35:32 2001 Delivered-To: freebsd-chat@freebsd.org Received: from mb2i0.ns.pitt.edu (mb2i0.ns.pitt.edu [136.142.186.36]) by hub.freebsd.org (Postfix) with ESMTP id 4F91737B422 for ; Sat, 26 May 2001 19:35:29 -0700 (PDT) (envelope-from pfg1+@pitt.edu) Received: from pitt.edu ("port 1035"@[136.142.20.83]) by pitt.edu (PMDF V5.2-32 #41462) with ESMTP id <01K41B50RGX8013QDT@mb2i0.ns.pitt.edu> for chat@FreeBSD.ORG; Sat, 26 May 2001 22:35:26 EDT Date: Sat, 26 May 2001 22:41:33 -0400 From: "Pedro F. Giffuni" Subject: RTL:BSD (was Re: BSD license getting more attention lately.) To: chat@FreeBSD.ORG Message-id: <3B10695D.197510E2@pitt.edu> Organization: University of Pittsburgh MIME-version: 1.0 X-Mailer: Mozilla 4.76 [en] (Win98; U) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en,pdf,es-CO References: <20010525233928.Q13035-100000@blues.jpj.net> <3B0FFF98.70E8E505@pitt.edu> Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org This is probably a topic for -realtime (If something comes out of this, some kind soul should consider moving it there), but I wonder how easy it would be to make a replacement scheduler on a kld. This is the approach used for Vassal on Windows NT (I found that on Microsoft's Research site while looking for documentation on Scheduler Activations). The code for Vassal is probably available, but if we take the GPLd linuxRT I doubt they could sue us..could they? cheers, Pedro. Dag-Erling Smorgrav wrote: > > "Pedro F. Giffuni" writes: > > "RTLinux (RTL:Original and RTL:BSD) is a fast, predictable realtime > > operating system that runs Linux or NetBSD in its spare time. It was > > created by FSMLabs which sells, supports and develops it. The PATENTED > > RTLinux design provides extreme realtime performance but allows > > programmers to make use of the powerful features and applications of a > > full-scale POSIX operating system." > > I wonder how long it'll be before they sue IBM for royalties (and > punitive damages) for MVS, which seems to me to infringe on their > patent. Of course, MVS has been around for, what, 15 years? 20 > years? But then again, prior art doesn't seem to mean much these > days. > > DES > -- > Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message