From owner-freebsd-smp Tue Jun 20 12:48:46 2000 Delivered-To: freebsd-smp@freebsd.org Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.40.131]) by hub.freebsd.org (Postfix) with ESMTP id 3300937BFD7 for ; Tue, 20 Jun 2000 12:48:32 -0700 (PDT) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.9.3/8.9.3) with ESMTP id VAA55398; Tue, 20 Jun 2000 21:48:16 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) To: Matthew Dillon Cc: Warner Losh , freebsd-smp@FreeBSD.ORG, Greg Lehey Subject: Re: SMP discussion moving to freebsd-smp In-reply-to: Your message of "Tue, 20 Jun 2000 12:36:47 PDT." <200006201936.MAA88247@apollo.backplane.com> Date: Tue, 20 Jun 2000 21:48:16 +0200 Message-ID: <55396.961530496@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > I can produce a stable set of changes in the first patch set, but > the fact of the matter is that much of the work is going to entail > ripping out the SPL compatibility mechanisms one at a time and replacing > them with mutexes. This will be an ongoing process over the next 6 > months and that means that -current is going to be less stable for > the entire time -- for both the SP and MP builds. Right, and here I think we have the crux of the matter: There is a lot of water between: "doesn't build, doesn't run" and "always compiles, rock stable" And I think we can pressume that we'll end somewhere in the middle. I am sure that all members of the SMPng crowd understand that leaving the rest of the FreeBSD developers stranded for more than a few days (worst case a week) at a time is simply not a good idea for anybody, right ? I mean, the SMPng people will want people to beat the snot out of their chances and if people cannot built and run -current, how are they supposed to test it ? So, Warner and everybody else: Calm down, nobody is closing the development in FreeBSD project down for half a year. Matt and the rest of the SMPng crowd: Give us some more concrete details. Don't commit anything until people have had a chance to look at it and test it (normal procedure for large-scale changes applies 100% here) In particular a lot of people are at USENIX, nothing should be committed until they have caught up with their email. And promise that you'll make sure that -current is usable as much of the time as possible for the rest of the developers. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD coreteam member | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message