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=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,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 5a0edbb7 for ; Thu, 27 Jun 2019 01:27:20 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 6B4719BFC3; Thu, 27 Jun 2019 11:27:19 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id A9E3F9BD9B; Thu, 27 Jun 2019 11:26:57 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (1024-bit key; unprotected) header.d=eschatologist.net header.i=@eschatologist.net header.b="sNinLJhj"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 7D5DF9BD9B; Thu, 27 Jun 2019 11:26:56 +1000 (AEST) Received: from blue.elm.relay.mailchannels.net (blue.elm.relay.mailchannels.net [23.83.212.20]) by minnie.tuhs.org (Postfix) with ESMTPS id EC8619BD84 for ; Thu, 27 Jun 2019 11:26:55 +1000 (AEST) X-Sender-Id: dreamhost|x-authsender|cmhanson@eschatologist.net Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 36578501C53 for ; Thu, 27 Jun 2019 01:26:55 +0000 (UTC) Received: from pdx1-sub0-mail-a53.g.dreamhost.com (100-96-14-97.trex.outbound.svc.cluster.local [100.96.14.97]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 8E5B3501EFB for ; Thu, 27 Jun 2019 01:26:54 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|cmhanson@eschatologist.net Received: from pdx1-sub0-mail-a53.g.dreamhost.com ([TEMPUNAVAIL]. [64.90.62.162]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384) by 0.0.0.0:2500 (trex/5.17.2); Thu, 27 Jun 2019 01:26:55 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|cmhanson@eschatologist.net X-MailChannels-Auth-Id: dreamhost X-Cure-Arithmetic: 6ccf1d5d041328ec_1561598815018_909128934 X-MC-Loop-Signature: 1561598815018:3002830720 X-MC-Ingress-Time: 1561598815018 Received: from pdx1-sub0-mail-a53.g.dreamhost.com (localhost [127.0.0.1]) by pdx1-sub0-mail-a53.g.dreamhost.com (Postfix) with ESMTP id 9067383F30 for ; Wed, 26 Jun 2019 18:26:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=eschatologist.net; h=from :content-type:content-transfer-encoding:mime-version:subject :date:references:to:in-reply-to:message-id; s=eschatologist.net; bh=d2Li2dfQYMJYK9jUNl1t+BORTMQ=; b=sNinLJhjWg7vKSRhkhAAjRcTRCC1 z8pjb7pQevG0CTLijDyrilIdrziwc5MikvrZyZ3XikY1IVf6twD1VXwfOnQ662K2 7NN6gjTn6SMj9YcKi7/cC0Hwh0SnKaGapoAzNN9OqYvnzmgdx2ljT4A+roBP5Nxs rY9R0QQQCTxcfo4= Received: from [17.212.150.151] (unknown [17.212.150.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: cmhanson@eschatologist.net) by pdx1-sub0-mail-a53.g.dreamhost.com (Postfix) with ESMTPSA id 3A66483F1D for ; Wed, 26 Jun 2019 18:26:50 -0700 (PDT) X-DH-BACKEND: pdx1-sub0-mail-a53 From: Chris Hanson Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\)) Date: Wed, 26 Jun 2019 18:26:50 -0700 References: <20190625004523.GB7655@mcvoy.com> <20190626024503.GA43970@wopr> <20190626025646.GR925@mcvoy.com> <20190626151143.GC3116@mit.edu> <20190626174431.GT925@mcvoy.com> <34DB62C2-7D8C-468B-99E1-CA035C9141A2@eschatologist.net> <04827B96-5B5E-473E-A95F-67C4292B69D1@cogs.com> <20190626202125.GA1206@mcvoy.com> <200E87FD-9B9C-4AEC-B3E1-95C9C84068A4@eschatologist.net> <20190627010224.GC1206@mcvoy.com> To: Tuhs In-Reply-To: <20190627010224.GC1206@mcvoy.com> Message-Id: X-Mailer: Apple Mail (2.3445.104.11) X-VR-OUT-STATUS: OK X-VR-OUT-SCORE: 0 X-VR-OUT-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeduvddrudejgdegkecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucggtfgfnhhsuhgsshgtrhhisggvpdfftffgtefojffquffvnecuuegrihhlohhuthemuceftddtnecunecujfgurhephfgtgfgguffffhfvjgfkofesthhqmhdthhdtjeenucfhrhhomhepvehhrhhishcujfgrnhhsohhnuceotghmhhgrnhhsohhnsegvshgthhgrthholhhoghhishhtrdhnvghtqeenucfkphepudejrddvuddvrdduhedtrdduhedunecurfgrrhgrmhepmhhouggvpehsmhhtphdphhgvlhhopegludejrddvuddvrdduhedtrdduhedungdpihhnvghtpedujedrvdduvddrudehtddrudehuddprhgvthhurhhnqdhprghthhepvehhrhhishcujfgrnhhsohhnuceotghmhhgrnhhsohhnsegvshgthhgrthholhhoghhishhtrdhnvghtqedpmhgrihhlfhhrohhmpegtmhhhrghnshhonhesvghstghhrghtohhlohhgihhsthdrnhgvthdpnhhrtghpthhtohepthhuhhhssehmihhnnhhivgdrthhuhhhsrdhorhhgnecuvehluhhsthgvrhfuihiivgeptd Subject: Re: [TUHS] CMU Mach sources? 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" On Jun 26, 2019, at 6:02 PM, Larry McVoy wrote: > Anyone who has read the code would have a hard time reconciling their > code with the picture they painted in their papers. And indeed, the > Mach supporters have said nothing about the code, other than to say it > is a research system and you can't expect clean code. =20 Then I=E2=80=99ll say it: I did find the Mach code plenty clean *for = what it was trying to accomplish* =E2=80=94 providing the layering and = abstractions necessary to make extensible what had traditionally been = kernel code, including allowing it to be developed out-of-tree. -- Chris