From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 16477 invoked from network); 10 Feb 2021 03:02:27 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 10 Feb 2021 03:02:27 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 90F469BA2A; Wed, 10 Feb 2021 13:02:25 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 7268E94F1B; Wed, 10 Feb 2021 13:02:13 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 0490C94F1B; Wed, 10 Feb 2021 13:02:12 +1000 (AEST) Received: from mcvoy.com (mcvoy.com [192.169.23.250]) by minnie.tuhs.org (Postfix) with ESMTPS id 95F6194F19 for ; Wed, 10 Feb 2021 13:02:11 +1000 (AEST) Received: by mcvoy.com (Postfix, from userid 3546) id 9B9D735E34C; Tue, 9 Feb 2021 19:02:10 -0800 (PST) Date: Tue, 9 Feb 2021 19:02:10 -0800 From: Larry McVoy To: Warner Losh Message-ID: <20210210030210.GV13916@mcvoy.com> References: <202102091900.119J0Gv9850825@darkstar.fourwinds.com> <20210210014123.GS13701@mcvoy.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Subject: Re: [TUHS] Macs and future unix derivatives X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" For the record, I've never seen the Solbourne code but I wanted to. Seemed like they were Unix people. They took SunOS to a better place. I suspect Greg Limes would agree. On Tue, Feb 09, 2021 at 07:56:00PM -0700, Warner Losh wrote: > On Tue, Feb 9, 2021 at 6:41 PM Larry McVoy wrote: > > > Which is part of the reason we liked it. I loved SunOS 4.x but it was > > also a uniprocessor kernel (Greg Limes tried to make it SMP but it was not > > a kernel that wanted to be SMP). I loved it because I could understand > > it and it was a bit more complex than v7. > > > > David Barak and the OS group as Solbourne wwere able to do it for OS/MP. > First as a ASMP kernel where CPU0 ran the unix kernel, but scheduled jobs > for all the other CPUs, the as SMP where the kernel could run on any CPU > with progressively finer locking on each release. > > Warner -- --- Larry McVoy lm at mcvoy.com http://www.mcvoy.com/lm