From nobody Sat Jan 13 01:52:55 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 4TBhHp6cRvz56sfd for ; Sat, 13 Jan 2024 01:52:54 +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 4TBhHp3pm2z3x2p for ; Sat, 13 Jan 2024 01:52:54 +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 40D1qu65017970 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Fri, 12 Jan 2024 17:52:56 -0800 (PST) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.17.1/8.15.2/Submit) id 40D1quhJ017969; Fri, 12 Jan 2024 17:52:56 -0800 (PST) (envelope-from fbsd) Date: Fri, 12 Jan 2024 17:52:55 -0800 From: bob prohaska To: Mark Millard Cc: FreeBSD ARM List Subject: Re: USB-serial adapter suggestions needed Message-ID: References: <902798B1-2B66-4ECD-BDAC-195C85066FE6@yahoo.com> <8B4C76B2-707E-4978-9CB3-5D547303A7E5@yahoo.com> <482FA770-89E8-42E8-945E-B662AD564AFE@yahoo.com> <9F0BEC32-93CB-4DEB-98C4-D0FF2284B9DE@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: <9F0BEC32-93CB-4DEB-98C4-D0FF2284B9DE@yahoo.com> X-Rspamd-Queue-Id: 4TBhHp3pm2z3x2p 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 Fri, Jan 12, 2024 at 05:18:25PM -0800, Mark Millard wrote: > Do you have the following sort of thing in each /etc/sysctl.conf ? > > # > # Together this pair avoids swapping out the process kernel stacks. > # This avoids processes for interacting with the system from being > # hung-up by such swapping out of process kernel stacks (and other > # types of processes as well). > vm.swap_enabled=0 > vm.swap_idle_enabled=0 Not on pelorus.zefox.org, www.zefox.com, nemesis.zefox.com, fixed now. The rest already had the setting. While checking, I logged in as root on the serial consoles of each host. When I tried to log in to www.zefox.net the response was FreeBSD/arm (www.zefox.net) (ttyu0) login: root Password: Corrupted MAC on input. ssh_dispatch_run_fatal: I've seen this only once before, I think logging in to pelorus.zefox.org. Re-running ssh to the terminal server and tip to www.zefox.net connected directly to a running console root shell. Apparently the login attempt started a root session on the console and detached the tip connection. For some reason I find that rather sinister. Am I being unreasonable? Thanks for writing! bob prohaska