Date: Thu, 23 Feb 95 17:50:16 MST From: terry@cs.weber.edu (Terry Lambert) To: root@vhf.dataradio.com (Charlie ROOT) Cc: freebsd-questions@FreeBSD.org Subject: Re: Odd behaviour in 2.0R Message-ID: <9502240050.AA20593@cs.weber.edu> In-Reply-To: <Pine.NEB.3.91.950223173050.890A-100000@vhf.dataradio.com> from "Charlie ROOT" at Feb 23, 95 05:34:35 pm
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> Maybe I am overlooking something fundemental here, but I can't for the > life of me get processes started by a user to die off when the user logs > out. If they are background tasks, they aren't supposed to die when the user logs out if they were started from a shell other than sh, or if they were started in sh with "nohup". A background process is not a member of the same process group as the foreground process, so it won't be sent a sighup when the DCD goes from on-to-off on the modem and all/some (there is disagreement on the exact implementation) of the processes in the process group get a SIGHUP -- assuming the modem is set up correctly and the line is -CLOCAL and HUPCL. Note that this *would* be a problem if the hardware were setup correctly but processes in the foreground didn't go away on DCD loss. Terry Lambert terry@cs.weber.edu --- Any opinions in this posting are my own and not those of my present or previous employers.
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