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=-1.0 required=5.0 tests=MAILING_LIST_MULTI, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 13847 invoked from network); 6 Jun 2022 01:17:28 -0000 Received: from minnie.tuhs.org (2600:3c01:e000:146::1) by inbox.vuxu.org with ESMTPUTF8; 6 Jun 2022 01:17:28 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 8A8A34221B; Mon, 6 Jun 2022 11:17:25 +1000 (AEST) Received: from mcvoy.com (mcvoy.com [192.169.23.250]) by minnie.tuhs.org (Postfix) with ESMTPS id 6769E4221A for ; Mon, 6 Jun 2022 11:17:21 +1000 (AEST) Received: by mcvoy.com (Postfix, from userid 3546) id 3460635E921; Sun, 5 Jun 2022 18:17:21 -0700 (PDT) Date: Sun, 5 Jun 2022 18:17:21 -0700 From: Larry McVoy To: George Michaelson Message-ID: <20220606011721.GH10240@mcvoy.com> References: <20220603214032.GQ10240@mcvoy.com> <20220603223014.GS10240@mcvoy.com> <20220603234822.GV10240@mcvoy.com> <20220604010543.GZ10240@mcvoy.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Message-ID-Hash: AFJIZLDRUYXGSP6ZHFG62DCUQYCV4VFC X-Message-ID-Hash: AFJIZLDRUYXGSP6ZHFG62DCUQYCV4VFC X-MailFrom: lm@mcvoy.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: The Eunuchs Hysterical Society X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Fwd: [simh] Announcing the Open SIMH project List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Mon, Jun 06, 2022 at 10:47:31AM +1000, George Michaelson wrote: > Kernels might be good: they're also horrendously complex now. Amen to that. I started on uniprocessor kernels that disabled interrupts, very simple model. Then SMP but coarse grained locks, still pretty simple. Then out of order hit and while I get it, it is fine, it still kind of exploded my mind and I moved to user space, source management stuff. I have a vague idea what is in a modern Linux kernel and I want nothing to do with it, I'm not good enough.