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=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 22542 invoked from network); 14 Nov 2022 14:16:31 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 14 Nov 2022 14:16:31 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 2765940E57; Tue, 15 Nov 2022 00:15:54 +1000 (AEST) Received: from mail-yw1-f169.google.com (mail-yw1-f169.google.com [209.85.128.169]) by minnie.tuhs.org (Postfix) with ESMTPS id 9673140A30 for ; Tue, 15 Nov 2022 00:15:44 +1000 (AEST) Received: by mail-yw1-f169.google.com with SMTP id 00721157ae682-367b8adf788so107527587b3.2 for ; Mon, 14 Nov 2022 06:15:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dartmouth.edu; s=google1; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=73bi+UxQmeFYLH9LTHuWilwQFTfsLeAxMZhRLw2I82M=; b=IlFjkDMIF3pB3akFZF++Z3r/7NEaYNzUM9011by6aJ6JPhO+J62zQNz0lVftU8iZ9U lW631WVHE01eflw3T+9DjIuLr66igSBqKPwlmK9Rcn/T4EBcMKswOuue3Xh+s+wbmu54 4+g7gGwuuNw7CYE030JvGU8PHPH5/py18pbjXUeVkDwr4140tDGlyzJBNLyyHhk+JVRu hjsyvBAzxPaeZ4Fn0fGcgtBW4AFC4g/9SmHykC3QnC+T9aoPNaipJ568pjJrdyWHZN0w iiwSzbJB7DccXyRxFW5oSNHLYa6awQmJjZQ9kaIIYSt4ROXaPCyL26ZEvPU2wKGwzJB1 baaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=73bi+UxQmeFYLH9LTHuWilwQFTfsLeAxMZhRLw2I82M=; b=5J95RaQorNYLnUqq0sat1PcEkIKzevUu6hMMVAQETI/GCEdF5d+bkcYNnOWcJjil9Q 3G3KKjnfL9gqmX9jc7SmvDZTa9BXB0Iil+olARKyii01l7f9CsSXUqMZgnsjMdEdswv0 BQS2lJZJaKNN4h8aBx+pbKYAXU6riJxj7DK4wYoArPcutNugeFR6q54zZohtnZaq1VtF jzqXcJnTmk0CkRdtxjeX6/LFHwrplimwJxfqQAd/3qnX0r6iuS+trEcK8wH/Eflq+ldF WHERIlzWP8qamGIyIFrVublThseV9awccsfWTlJv2+5Uo+VsD/LKY4VPUVSsjV6fhmue hqdw== X-Gm-Message-State: ANoB5pnr2aCfj66JTsNc9Rqgw8yVIlWYgKB7hoZoSP5Anbk5JtrGPsrK 5i58MDBDgX05ubohBQepXwJMZ2/Srzk4mhRbPs7Sayco8ylzhQ== X-Google-Smtp-Source: AA0mqf6CCaCv9mt/iiHDwhSVQqSF/kdEQtC19MhCf5QTXAO2LaiGOop8wwW91W0N4pVH1PwgXL2B7GZfui3wnCSp2tQ= X-Received: by 2002:a0d:ebd0:0:b0:369:ec61:e95f with SMTP id u199-20020a0debd0000000b00369ec61e95fmr12739726ywe.353.1668435283561; Mon, 14 Nov 2022 06:14:43 -0800 (PST) MIME-Version: 1.0 From: Douglas McIlroy Date: Mon, 14 Nov 2022 09:14:28 -0500 Message-ID: To: TUHS main list Content-Type: text/plain; charset="UTF-8" Message-ID-Hash: DABAEIQYQKLDII7I35AVQE5VY2AKRQZ2 X-Message-ID-Hash: DABAEIQYQKLDII7I35AVQE5VY2AKRQZ2 X-MailFrom: douglas.mcilroy@dartmouth.edu X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Book: "You Are Not Expected to Understand This" List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: >> To be honest, I've forgotten many (most) of the details. But that sounds >> about right. As I remember it, it was like SunOS. The key point was that >> the kernel only had one view of the memory system period, no FS >> buffer cache etc...which was a departure from many of the traditional UNIX >> implementations. IIRC they did not support BSD's mmap -- but check the > It sounds like they could have supported mmap() easily. I'd love to see > this kernel, it sounds to me like it was SunOS with nicely done SMP > support. The guy that said he'd never seen anything like it before or > since, just makes me want to see it more. "One view of the memory, period." That describes Multics. Doug