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=-0.3 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,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 81f8df6f for ; Fri, 17 Jan 2020 15:27:23 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 38C629C10A; Sat, 18 Jan 2020 01:27:22 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 466CE9C0F8; Sat, 18 Jan 2020 01:25:27 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="UkycfJuE"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 05D559C0F8; Sat, 18 Jan 2020 01:25:12 +1000 (AEST) Received: from mail-ua1-f44.google.com (mail-ua1-f44.google.com [209.85.222.44]) by minnie.tuhs.org (Postfix) with ESMTPS id 981FC9B842 for ; Sat, 18 Jan 2020 01:25:10 +1000 (AEST) Received: by mail-ua1-f44.google.com with SMTP id 59so9043927uap.12 for ; Fri, 17 Jan 2020 07:25:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=2PuX2vc+pprq/PvRRcZHVH+SCLzP8bbBIzzbw6m+Cyw=; b=UkycfJuErI5/Jt99QmLSuJT6aisgBioc6CUG3wRjQxX7rgRFtx7q07HtGeOUUAIV8K 3orirn1G5ttEWy7eCtiNd1N57Od9fJQyv+gpy1hZnuePhL8vYgHTJ1CvhhFe+jGyhbVY AMCxJQzxxS7C1ZysEq86xR4i4CQWj1B6Oxl+Pu6eNXMMFI3XnL6aFeIu4XPYs008HOAA W1KMme6FvetncapZn1YJikeRRkU6P+UMV8n2ClcCDNVLHr0skjDFKxBmshwyx3ClSa4s YPRGW9CtUemFQ+UYZewhpuRDC+l5LX2YbUv19ZnzDPw6gqgwOc3Zg1hyuuWCpT6qqE1Y S9pQ== 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=2PuX2vc+pprq/PvRRcZHVH+SCLzP8bbBIzzbw6m+Cyw=; b=jf4ht6Q8oDzIRL8zV0r3zc032sVYEmDAft8I5zKdpQRkfiZ6Qa3tLWdC265vDTvc1E ch+o4VCTFykdI8gx0xnKsiiDTNal2UT5F+O+pMRSBBN3VDsWO1sHYBwsYHcWmTPi7FRH 8L3WhPx/ky9RsRfUzGCCdlnUtxlAQoKsu/5g+/qeArhrwi7oK8bcKXtSvPD8/KVL8INv RjhU1MRVnwAgqdQRq2cIkE2UtXsI11+43nXls3cslYzWvM7VBXO1OSVZFtoXww8rCutc l+q1i0coqg9BD7/V+psoeVNiEzlopWb9YzBieHAfb+b9mcdPlZMR+FRQN7V08JUJVJYo wm+w== X-Gm-Message-State: APjAAAUW0R7bdmvEkE6q3PT+Tvxcn6wWbJwdSE4TTuP0zEK/flrDA3uO ZK1aH0MNHp0+r03vnK9Kgfi3KCUobRr6ByKmsPA= X-Google-Smtp-Source: APXvYqwPt2Zzv3q+gU/QKzdeWrIfZjZm5+r/bC90LfL8kRs8d1KugLc+aMYgfBiRHhdzmomZ2gshOJhbBuNh+8wNsvc= X-Received: by 2002:ab0:14a2:: with SMTP id d31mr21415550uae.106.1579274709643; Fri, 17 Jan 2020 07:25:09 -0800 (PST) MIME-Version: 1.0 References: <202001171431.00HEV3gF020029@tahoe.cs.Dartmouth.EDU> In-Reply-To: From: "John P. Linderman" Date: Fri, 17 Jan 2020 10:24:57 -0500 Message-ID: To: Clem Cole Content-Type: multipart/alternative; boundary="000000000000123720059c578c6c" Subject: Re: [TUHS] Lions book 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: The Eunuchs Hysterical Society , Doug McIlroy Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --000000000000123720059c578c6c Content-Type: text/plain; charset="UTF-8" I heard from her as well. So far, no immediate fire danger where she lives in Australia, but her garden (which may be Australian for lawn) is dying because of water restrictions. On Fri, Jan 17, 2020 at 9:52 AM Clem Cole wrote: > Indeed!! > > > FWIW I continue recommend it young hackers to read/examine/study before > they try to open something like the current Linux kernel. The MIT xv6 work > to put it on an Intel Architecture just adds to the value. > > As the recent thread/argument on the merits/demerits of the use/abuse of > the preprocessor shows - simple and straightforward is easier to understand > regardless of the arguments wrt how helpful the macros can be. > > 6th Edition is clear and if you want to understand what it takes and how > it works, John's commentary it difficult to be. > > On Fri, Jan 17, 2020 at 9:32 AM Doug McIlroy > wrote: > >> I learned from Marianne Lions that she's still receiving >> royalties from John's book. What a testimonial to both >> John and the system! >> >> Doug >> > -- > Sent from a handheld expect more typos than usual > --000000000000123720059c578c6c Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I h= eard from her as well. So far, no immediate fire danger where she lives in = Australia, but her garden (which may be Australian for lawn) is dying becau= se of water restrictions.=C2=A0

<= div dir=3D"ltr" class=3D"gmail_attr">On Fri, Jan 17, 2020 at 9:52 AM Clem C= ole <clemc@ccc.com> wrote:
Indeed!!=C2=A0

<= br>
FWIW I continue recommend it young hackers to re= ad/examine/study before they try to open something like the current Linux k= ernel.=C2=A0 The MIT xv6 work =C2=A0to put it on an Intel Architecture just= adds to the value.

As t= he recent thread/argument on the merits/demerits of the use/abuse of the pr= eprocessor shows - simple and straightforward is easier to understand regar= dless of the arguments wrt how helpful the macros can be. =C2=A0=C2=A0

6th Edition is clear and if = you want to understand what it takes and how it works, John's commentar= y it difficult to be.

On Fri, Jan 17, 2020 at 9:32 AM Doug McIlroy <= doug@cs.dartmout= h.edu> wrote:
I learned from Marianne Lions that she's still receiving
royalties from John's book. What a testimonial to both
John and the system!

Doug
--
Sent from a handheld expec= t more typos than usual
--000000000000123720059c578c6c--