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=-0.1 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HTML_FONT_LOW_CONTRAST,HTML_IMAGE_ONLY_28,HTML_MESSAGE, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 9166 invoked from network); 6 Jun 2021 19:36:15 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 6 Jun 2021 19:36:15 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 194199CA44; Mon, 7 Jun 2021 05:36:14 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 14AB49C9DA; Mon, 7 Jun 2021 05:35:58 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ccc.com header.i=@ccc.com header.b="HWVlJG2/"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 1A0399C9DA; Mon, 7 Jun 2021 05:35:57 +1000 (AEST) Received: from mail-qv1-f46.google.com (mail-qv1-f46.google.com [209.85.219.46]) by minnie.tuhs.org (Postfix) with ESMTPS id 942B59C9D6 for ; Mon, 7 Jun 2021 05:35:56 +1000 (AEST) Received: by mail-qv1-f46.google.com with SMTP id e18so7760074qvm.10 for ; Sun, 06 Jun 2021 12:35:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ccc.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=to0BViZE5ozktw7jOAvQtBQeAgwqkXynq0dFkMyIen0=; b=HWVlJG2/d1194fyJOUq2wRjp6AYrmMbgFetTlVIp39h1g38fJCeIDm0ZOs/29CWCt7 9AfSMlTlKe2QsPjgiNb6GGm0uhdRcmmbROdHD3RgCcjrt4jjWGloIJom3x7qnKXtbrOu YDQ5dqIevtiJ9PI49f0bTzPYUnjHr3rbC+8wc= 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:cc; bh=to0BViZE5ozktw7jOAvQtBQeAgwqkXynq0dFkMyIen0=; b=M1NFZKUi46XH3yrz6OJusFN+OE86csMV/lofsB9yeAPVFRkvoDC7UV8WwXLg84ONjz EnErm31AGxM9WJJsAEtVcoaDH/FuzCSEKamsSvjk8p3MMHtR1GzNVK6j4hwwq8iLEnpy +EQb9lnVtE2hXbrJOlVDZoxYDIADqGcVKZqdxFjmVlBhmYUsUwBOcrViMHa8/eT78vmh 5ePO99fIkZ3jFj22dlPZ+TGI6PlzjuE9MsiRd8uPGb5TH/opuR6/Fz3R0761i4riHMUj mrrqUcx6o2NL+2bUVlTgtfQDoms1ydIu8q2k4ZeutjqmCjaGGXBOLjzC0ib0AFIbmDq5 bqig== X-Gm-Message-State: AOAM5319uVM0oLa7ewPmEVDPM8S8t6MCEfyckc6ZcAmvPLDocUBnmXrb tFagKUqYnONgvgXewTPTi7cGfPbSQ2Tta8HymPIRCg== X-Google-Smtp-Source: ABdhPJyPARrKmA+PRSePtcATK7XGwEIZSFUrf05b6CChCxEeGRgQSvzzpjFjFTNj6Ve5h//CExalovYkCQC7YfqT000= X-Received: by 2002:ad4:5def:: with SMTP id jn15mr4772133qvb.22.1623008155589; Sun, 06 Jun 2021 12:35:55 -0700 (PDT) MIME-Version: 1.0 References: <9CE2AC05-6B4E-475F-874F-426DD51A8859@planet.nl> <20210606183011.GA10697@mcvoy.com> <202106061918.156JIZ6C012184@freefriends.org> In-Reply-To: <202106061918.156JIZ6C012184@freefriends.org> From: Clem Cole Date: Sun, 6 Jun 2021 15:35:30 -0400 Message-ID: To: Aharon Robbins Content-Type: multipart/alternative; boundary="00000000000094f2d205c41e088f" Subject: Re: [TUHS] 32V memory management: not quite V7 style swapping -- source code update 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 , Paul Ruizendaal Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --00000000000094f2d205c41e088f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, Jun 6, 2021 at 3:18 PM wrote: > For example? As I remember it, it was essentially a super-bug-fixed versi= on > of 4.2. Nothing more. > To be honest I've forgotten all of the details, but the big one was the ability to (optionall) have the old 4.1 signal semantics and I think there were a couple of more. The stuff that went into 4.3 was heavily driven by the Arpa advisory board. Many people in the Arpa community had felt that CSRG was not supplying what they needed. There were some compromises. As part of that the team put much of the CMU Mach memory system at some point (I thought at 4.3) and as Paul pointed out, that's when mmap was finally added [which is part of why I think that's when the CMU changes came]. I also where the great line (whom I wish IO knew who first said it), described "new BSD system was full of other folks' ideas, but had been peed on to smell like UCB). BTW: the other thing that was happening at UCB by then was that while the CSRG project was funding a lot of stuff, it was not seen as research, but more of a development for hire by then. There started to be a lot of resentment. =E1=90=A7 =E1=90=A7 --00000000000094f2d205c41e088f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Sun, Jun 6, 2021 at 3:18 = PM <arnold@skeeve= .com> wrote:
For example? As I remember it, it was essentially a super-bug-fixed= version of 4.2. Nothing more.
To be honest= I've forgotten=C2=A0all of the details, but the=C2=A0big one was the a= bility to (optionall) have the old 4.1 signal semantics and I think there w= ere a couple of more.=C2=A0 =C2=A0The stuff that went into 4.3 was heavily= =C2=A0driven by the Arpa advisory board.=C2=A0 Many people in the Arpa comm= unity had felt that CSRG was not supplying what they needed.=C2=A0 There we= re some compromises.=C2=A0 As part of that the team put=C2=A0much of the CM= U Mach memory system at some point (I thought at 4.3) and as Paul pointed o= ut, that's when mmap was finally added [which is part of why I think th= at's when the CMU changes came].=C2=A0 =C2=A0I also where the=C2=A0grea= t line (whom I wish IO knew who first said it), described "new BSD sys= tem was full of other folks' ideas, but had been peed on to=C2=A0smell = like UCB).

BTW: the=C2=A0oth= er thing that was happening at UCB by then was that while the CSRG project = was funding a lot of stuff, it was not seen as research, but more of a deve= lopment for hire by then.=C2=A0 There started to be a lot of resentment.
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