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 9321 invoked from network); 7 Jun 2021 19:25:38 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 7 Jun 2021 19:25:38 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 90A3E9C9DB; Tue, 8 Jun 2021 05:25:34 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 535FB9C9DA; Tue, 8 Jun 2021 05:24:58 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id EDAD09C9DA; Tue, 8 Jun 2021 05:24:53 +1000 (AEST) Received: from central.weird.com (unknown [198.96.117.51]) by minnie.tuhs.org (Postfix) with ESMTP id BE1009C9D6 for ; Tue, 8 Jun 2021 05:24:50 +1000 (AEST) Received: from (invalid client hostname: bind: DNS error: DNS lookup for A for 'more.local': Unknown host)more.local ((no PTR matching greeting name)d207-6-82-137.bchsia.telus.net[207.6.82.137] port=61633) by central.weird.com([198.96.117.51] port=587) via TCP with esmtp (5286 bytes) (sender: ) (ident using UNIX) id for ; Mon, 7 Jun 2021 15:24:43 -0400 (EDT) (Smail-3.2.0.122-Pre 2005-Nov-17 #78 built 2020-Mar-25) Received: from (invalid client hostname: the DNS A record (with the targegt address [10.0.1.129]) for the hostname 'more.local' does not match the expected address [10.0.1.129])more.local ((no PTR matching greeting name)xentastic.local[10.0.1.140] port=63260) by more.local([10.0.1.129] port=25) via TCP with esmtp (4781 bytes) (sender: ) id for ; Mon, 7 Jun 2021 12:24:43 -0700 (PDT) (Smail-3.2.0.122-Pre 2005-Nov-17 #1 built 2015-Feb-17) Message-Id: Date: Mon, 07 Jun 2021 12:24:43 -0700 From: "Greg A. Woods" To: The Unix Heritage Society mailing list In-Reply-To: References: <9CE2AC05-6B4E-475F-874F-426DD51A8859@planet.nl> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/26.1 (x86_64--netbsd) MULE/6.0 (HANACHIRUSATO) X-Face: ; j3Eth2XV8h1Yfu*uL{<:dQ$#E[DB0gemGZJ"J#4fH*][ lz; @-iwMv_u\6uIEKR0KY"=MzoQH#CrqBN`nG_5B@rrM8,f~Gr&h5a\= List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: The Unix Heritage Society mailing list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --pgp-sign-Multipart_Mon_Jun__7_12:24:18_2021-1 Content-Type: text/plain; charset=US-ASCII At Sun, 6 Jun 2021 14:23:49 -0400, Clem Cole wrote: Subject: Re: [TUHS] 32V memory management: not quite V7 style swapping -- source code update > > You got me thinking and I'm curious if anyone really knows historically how > many sites ran a 32V system? In those days (late 70s/early 80s) the > universities that knew and and even many sites inside the Bell System, the > Vaxen I ran 4.1BSD (say the Marx's brothers at Whippany along with the Vax > in the underseas research lab were we put the AP I did for my thesis). If my memory serves me correctly, University of Calgary ran 32V on their first teaching VAX 11/780 for a short while when I was starting my second year of undergrad (Sept. through to the xmas break, IIRC). This would be the fall of 1980. After that first term I think it was running 3BSD for the rest of the semester, and finally was running and early 4BSD not long after. As I recall they had tried to run 3.x right away but had some problems (possibly with a serial driver? the initial setup had some 20 or 30 terminals) and in order to not have all us students trying to crowd onto the old PDP 11/60 with just 12 terminals (which was also still in use by a bunch of classes), while the VAX sat idle, they just gave up and (re)installed 32V. I think my class probably lost a week or two of time to use the system. At that time the only other teaching system was the Multics mainframe, and it was also overloaded with too many users. I remember being a little dismayed that the BSD C compiler seemed entirely different from 32V (where it was very V7-like and thus what I was familiar with from first year). It wasn't until 4BSD offered me job control and command history in CSH that I finally became more accepting of BSD. I think it was after the 4.x upgrade that they instituted CPU time limits for students, and I remember discovering that if one caught SIGXCPU then the limit just kept increasing -- i.e. the hard limit never worked in the initial release of whatever version it was -- so I wrote a little program that would catch the signal, then burn CPU in a loop until the limit was above some requested value, and then it would fork a shell. I put that in my ~/.login and had lots of fun until I was caught. Then I fessed up and didn't get expelled! They fixed the bug of course and as a result of it all I then got to know the sysadmins better and learned an awful lot more from them than I did in class on some/many days. -- Greg A. Woods Kelowna, BC +1 250 762-7675 RoboHack Planix, Inc. Avoncote Farms --pgp-sign-Multipart_Mon_Jun__7_12:24:18_2021-1 Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit Content-Description: OpenPGP Digital Signature -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQTWEnAIIlcZX4oAawJie18UwlnHhQUCYL5yZQAKCRBie18UwlnH hUHfAKCR6d4OpaE35Pdem2AV4DdYfz4vHACgu4+k8zdNxE5NhrKPHecTgM7XjKY= =i71+ -----END PGP SIGNATURE----- --pgp-sign-Multipart_Mon_Jun__7_12:24:18_2021-1--