From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id d34810f9 for ; Wed, 28 Aug 2019 22:30:09 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id AC7B99BDD1; Thu, 29 Aug 2019 08:30:04 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id AB4A19BF75; Thu, 29 Aug 2019 08:29:47 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=algebras-org.20150623.gappssmtp.com header.i=@algebras-org.20150623.gappssmtp.com header.b="cCjGN0K4"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 3DE2D9BF73; Thu, 29 Aug 2019 08:29:44 +1000 (AEST) Received: from mail-io1-f65.google.com (mail-io1-f65.google.com [209.85.166.65]) by minnie.tuhs.org (Postfix) with ESMTPS id 85CEC9BDCF for ; Thu, 29 Aug 2019 08:29:15 +1000 (AEST) Received: by mail-io1-f65.google.com with SMTP id t3so2748006ioj.12 for ; Wed, 28 Aug 2019 15:29:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=algebras-org.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=EdaeKrzwOWEG7q7mcPiQe0VOvkUjSRbjR8yDPVZIKk8=; b=cCjGN0K4Y/il02iRybIwHkBBDt1mWphgCfxkTcHcSlE+whqUvoVG/ptUe84eaw8EWe NutZ2NwAOuYdAS5Trj+VOyqxTtDtZq67CgACqY6I4BRaA3auiSYGh+s0EGR6m6KTTKCY PzwNBSNBPp6Ng7i/70Tk3LRj+W+cvCelreKxcGuI9WFum/rEE4rzXAVe24mml/abO7tT gpZRW8Bayy5sB6sKByt8p3objCFRVHzGPdY6Gk/m/VTQtRdX1dhEVo0JLKUDi5YHGrCO twKBPfdL6u0aO4eipK+8XDGjuzdGtSxNMPiawg7K82WSYeFHuLCnsNeGNv+l5lW3K2FH YptA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=EdaeKrzwOWEG7q7mcPiQe0VOvkUjSRbjR8yDPVZIKk8=; b=ODOa+2XEXM4w2eTCf8V5Vvr73BGV4ikQj1MuB5pKtx8wQrITejMrPO8it7kJFJZKyQ duIb0+A7/YNDZVMJuvkFeIDcbAcY8pf/MtWlpf3Mru7EuQy2GDIKc5BEmWWKL3h5dwxs 7kFFcrG+g2XQDzto195pWE+F0vH7ZwxW22nz9BcV07lfFSGw1BrMenFAQ1nbPWlHhOfj /pkrG6MNDWWuQEJZ+T0aHQx2E4gylRHy2KnMzGuttPeNVmF9UxQPpMTTN2I1PMrJ3TRf d3GMMtuhxV2qpIPuF2mSsM9g36U3E1oLGZciOZQN/4RClGjMtf9KUFgKPuOJxsMOXIVG 5eRw== X-Gm-Message-State: APjAAAUAqm7n9sqE6ug8yKxfU6l9ecrfe+ROaBG7xzS8hkwK0JdEXeLb gSoqhJZzzLjR1MalraiCS1LRg7hpSV9VpMrh+hQzv+4BMMY= X-Google-Smtp-Source: APXvYqyOYESy2y4wHztHDs7+ttmrrHICpV5dI4M+L+4sqtUcsLm+eEd6fR8P6OOo7BImOUOWMFeVySxLUOpW+rf6LdQ= X-Received: by 2002:a02:1906:: with SMTP id b6mr7095754jab.46.1567031354653; Wed, 28 Aug 2019 15:29:14 -0700 (PDT) MIME-Version: 1.0 References: <201908281841.x7SIfQS7053036@tahoe.cs.Dartmouth.EDU> In-Reply-To: From: George Michaelson Date: Thu, 29 Aug 2019 08:29:03 +1000 Message-ID: To: The Eunuchs Hysterical Society Content-Type: text/plain; charset="UTF-8" Subject: Re: [TUHS] dmr streams & networking [was: Re: If not Linux, then what?] 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" This is an object lesson in not making assumptions about things. I had always assumed the V in UNIX 32V stood for something which went to demand paging, from 'Virtual Addressing'. Turns out: I was wrong. One other note about sockets: The original 4.2 port had to be used by a lot of people without the ethernet, because we didn't have the DEC ethernet card it was written to. This made unix domain sockets very interesting because you could test in them. Except: the very first test program somebody wrote at Leeds university to create and write to a unix domain socket in /tmp crashed the vax. ... (this was around 1982/3) -We were warned off using sockets until the first patch tape came in the post. The Berkeley lawyers were amazing. I like to think 'shakespear witches' or 'evil gnomes' -We had changed staff in some functional role, and when we came to do licence renewal for the upgrade from 4.1 They insisted we find the mouldering body of the ex appointee and get them to countersign (press the dead flesh in a pot of ink and put on the paper?) before they'd re-issue. I'd never seen documents (a) printed on this bizarre page size called 'legal and (b) actually *embossed* by the university seal.. This was some serious magic going down. In my nightmares, somebody in mid-western nondescript university of somewhereville is screaming "I CANT GET THE ORIGINAL SIGNATURE" and the Berkeley lawyers just shrug and walk away from the deal. This was also the release which brought T/Roff drivers for xerographic process printers. They emitted wet, shiny, even slimy pages in some process I don't want to understand, all of which bore cut marks on the side (roll feed, before A4 printers existed) marking this US legal thing. Cut at the mark? Won't fit a ring-binder we own in the entire University... Mike Lesk told me the code had 'witticisms' such as an extra emitted char on \r to ensure the specific printer it was written for didn't stuff up TBL output. -G On Thu, Aug 29, 2019 at 7:55 AM Rob Pike wrote: > > Reiser added paging and it was working well by early 1981. > > -rob > > > On Thu, Aug 29, 2019 at 4:41 AM Doug McIlroy wrote: >> >> > Doug McIlroy wrote: >> > >> >> >> >>> How long was research running on a PDP-11 and when did they move to a VAX? >> >> >> >> London and Reiser had ported Unix to the VAX, replete with virtual memory, in 1978. By the time v7 was released (1979), Vaxen had become the workhorse machines in Research. >> >> >> >> Doug >> > >> > So, what's the story on why the London/Reiser port didn't get adapted >> > back by Research, and they ended up starting from 4.1 BSD? >> > >> > Thanks, >> > >> > Arnold >> >> >> Sorry, what I said about London/Reiser is true, but not the whole story. L/R didn't have demand paging; BSD did. >> >> Doug >>