From nobody Thu Jan 11 20:12:15 2024 X-Original-To: freebsd-arm@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4T9wnJ19XNz56sDG for ; Thu, 11 Jan 2024 20:12:20 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (www.zefox.net [50.1.20.27]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "www.zefox.com", Issuer "www.zefox.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4T9wnH4f79z47lZ for ; Thu, 11 Jan 2024 20:12:19 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Authentication-Results: mx1.freebsd.org; none Received: from www.zefox.net (localhost [127.0.0.1]) by www.zefox.net (8.17.1/8.15.2) with ESMTPS id 40BKCFg0010269 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Thu, 11 Jan 2024 12:12:16 -0800 (PST) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.17.1/8.15.2/Submit) id 40BKCFix010268; Thu, 11 Jan 2024 12:12:15 -0800 (PST) (envelope-from fbsd) Date: Thu, 11 Jan 2024 12:12:15 -0800 From: bob prohaska To: Mark Millard Cc: freebsd-arm@freebsd.org Subject: Re: USB-serial adapter suggestions needed Message-ID: References: <3012A549-9482-4D69-9DF4-7987E650DFFA@yahoo.com> <55AC6824-587D-4C67-B64B-2045A1112F69@yahoo.com> <041F74B4-3D44-4364-9EBD-9F21A4F3B313@yahoo.com> List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <041F74B4-3D44-4364-9EBD-9F21A4F3B313@yahoo.com> X-Rspamd-Queue-Id: 4T9wnH4f79z47lZ X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7065, ipnet:50.1.16.0/20, country:US] On Wed, Jan 10, 2024 at 09:34:00PM -0800, Mark Millard wrote: > > "&" creates background processes that are still killed when > their parent tty or controlling process goes away. nohup > avoids that kill. Not sure what's going on, but if I use make buildworld & on one of my RPi* hosts and log out or otherwise drop the connection, the job keeps going. Maybe use of tcsh? > > What was running on nemesis.zefox.com was its side of the > ssh that in turn was attached to the shell that in turn > was running tip --until those exited/were-killed on > nemesis.zefox.com . > > But there is no information here about which of those was the > one to start the failure on nemesis.zefox.com : > > A) Was it the tip process? > B) Was it the shell process? > C) Was it the nemesis.zefox.com side of the ssh? > I've put relevant excerpts from /var/log/messages from ns2.zefox.net (the console host) and nemesis.zefox.com (the terminal server) at http://www.zefox.net/~fbsd/tiptrouble/ They've been trimmed to the tip failure timeframe. There is a link to a copy of nemesis's sshd_debug.log file at http://nemesis.zefox.com/~bob/fbsd/sshd_debug.log The file seems too big to search interactively via a browser, but it might be possible to download it in one pass and then grep locally. For some reason it isn't timestamped in any way I recognize. > We only know that the end result was lack of anything > reading the pipe on nemesis.zefox.com : by then > the ssh side on nemesis.zefox.com had stopped being > set up to read the pipe. > > > Did you look at /var/logs/messages [or the analogous linux > place(s)] on "pi4 RasPiOS workstation"? What, if anything, did > such have from around the failure time frame? > > I tried, but the naming is very different from FreeBSD and I didn't recognize any obvious candidates. I'll look more later. Meanwhile, the non-ssh-mediated tip session from nemesis.zefox.com to ns2.zefox.net's console gpio pins remains up. Thanks for reading, and apologies for the cumbersome log file presentation. bob prohaska