Help request: cu hangs on termination

Geoffrey Leach leach at
Mon Sep 25 03:11:24 AEST 1989

I'm running AT&T UNIX release 3.2.1 on a generic 386AT.
Occasionally, when I end a cu session (after the connection
is terminated normally) the child process will hang in the
<defunct> stage.  (Modem is a TrailBlazer).  Terminating
the window in which the cu was run does not kill the zombie,
and, of course, the parent hangs around as well.  I have to
reboot to get the port back.  Any ideas?

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