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=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 2527 invoked from network); 11 Aug 2022 06:05:08 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 11 Aug 2022 06:05:08 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 3D6FD404ED; Thu, 11 Aug 2022 16:05:01 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuhs.org; s=dkim; t=1660197901; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:list-id:list-help: list-owner:list-unsubscribe:list-subscribe:list-post; bh=2Cp1EtcPYKRnObvglcb3W+ze7hKYVlWK4IzLkZNuVAM=; b=Toe1KqdMf5+wsV/+Y6KwV/NJ+A+nwhSNLpE78Yy3kh5Bahy+k/fhGbEb6Rw+EcSwlI9oBF IwTFEeZJo87d6UULXK6GClwK/nCjemfgWIwPGKJ9y1++5G3HQ1N9DHoCrIneED55zPyehG NwgolDE53PYiUeDracDr/CANZzu4pkk= Received: from ewsoutbound.kpnmail.nl (ewsoutbound.kpnmail.nl [195.121.94.167]) by minnie.tuhs.org (Postfix) with ESMTPS id D15BF4001F for ; Thu, 11 Aug 2022 16:04:39 +1000 (AEST) X-KPN-MessageId: 70935353-193b-11ed-a5a6-005056abbe64 Received: from smtp.kpnmail.nl (unknown [10.31.155.38]) by ewsoutbound.so.kpn.org (Halon) with ESMTPS id 70935353-193b-11ed-a5a6-005056abbe64; Thu, 11 Aug 2022 08:04:20 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=planet.nl; s=planet01; h=to:date:message-id:subject:mime-version:content-type:from; bh=2Cp1EtcPYKRnObvglcb3W+ze7hKYVlWK4IzLkZNuVAM=; b=fV81wnVM1184JWEZfOap2c2+q+MjWRjUiABkynvO4ik0X6B6uXJP4HVWtbafafvf6zgcZHL5Q9zVj o1bDd3wfxp+B94lSRxzPBasCz9gtiPuk2VvRVkhEdXgzY1mdjbkgY0fmcZplm6vNvJRgS5RN6U+gEH HRFE8ZZp+iXZRGJY= X-KPN-MID: 33|hJ1jNk7CjYRNDVgznOesfh4LLW9kK5Y/ZY/dBtEdDu3fpE1XY7aaf9ctjRj30nY VHk3wN1w7UJzX0FI+VYthdg== X-KPN-VerifiedSender: Yes X-CMASSUN: 33|lTv8qH4uHLd9DVmpaz+AAhUeoaglboekn+WE7i9rGd8aioV1TAgLuTk63FgvxEI E71+NTdQloCE+gasqHMyHDQ== X-Originating-IP: 77.172.38.96 Received: from smtpclient.apple (77-172-38-96.fixed.kpn.net [77.172.38.96]) by smtp.kpnmail.nl (Halon) with ESMTPSA id 7714887a-193b-11ed-b5e7-005056abf0db; Thu, 11 Aug 2022 08:04:31 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) Message-Id: Date: Thu, 11 Aug 2022 08:04:30 +0200 To: The Eunuchs Hysterical Society X-Mailer: Apple Mail (2.3654.120.0.1.13) Message-ID-Hash: 4TN4PGQH6AZFMLS76WEO45DDX2Y2UHUH X-Message-ID-Hash: 4TN4PGQH6AZFMLS76WEO45DDX2Y2UHUH X-MailFrom: pnr@planet.nl 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] PCS Munix kernel source List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Paul Ruizendaal via TUHS Reply-To: Paul Ruizendaal > Message: 4 > Date: Wed, 10 Aug 2022 12:29:24 +0200 > From: Holger Veit > Subject: [TUHS] PCS Munix kernel source >=20 > Hi all, >=20 > I have uploaded the kernel source of 32 bit PCS MUNIX 1.2 to > https://github.com/hveit01/pcs-munix. Thank you for sharing this work, most impressive! > MUNIX was an AT&T SVR3.x implementation ... Are you sure? Could it perhaps be SVR2? (I don=E2=80=99t see any STREAMS = stuff that one would expect for R3). > The interesting feature of this kernel is the integration of the > Newcastle Connection network One of my interests is Unix (packet) networking 1975-1985 and that = includes Newcastle Connection. I=E2=80=99ve so far not dived deep into = this, but your work may be the trigger for some further investigation. My understanding so far (from reading the paper a few years ago) is that = Newcastle Connection works at the level of libc, substituting system = calls like open() and exec() with library routines that scan the path, = and if it is a network path invokes user mode routines that use remote = procedure calls to give the illusion of a networked kernel. I=E2=80=99ve = briefly looked at the Git repo, but I do not see that structure in the = code. Could you elaborate a bit more on how Newcastle Connection = operates in this kernel? Happy to communicate off-list if it goes in too = much detail. I note that the repo Readme says that the kernel only does some basic IP = networking as a carrier, but I also see some files in the tree that seem = to implement a form of tcp (and that seem unrelated to the early Unix = tcp/ip=E2=80=99s that I have seen so far). Or am I reading too much into = these files? =3D=3D=3D Re-reading the Newcastle Connection paper also brought up some citations = from Bell Labs work that seems to have been lost. There is a reference = to =E2=80=9CRIDE=E2=80=9D which appears to be a system similar to = Newcastle Connection. The RIDE paper is from 1979 and it mentions that = RIDE is a Datakit re-implementation of earlier an earlier system that = ran on Spider. Any recollections about these things among the TUHS = readership? The other citation is for J. C. Kaufeld and D. L. Russell, "Distributed = UNIX System", in Workshop on Fundamental Issues in Distributed = Computing, ACM SIGOPS and SIGPLAN (15-17 Dec. 1980). It seems = contemporaneous with the Luderer/Marshall/Chu work on S/F-Unix. I could = not find this paper so far. Here, too, any recollections about this = distributed Unix among the TUHS readership?