Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!brl-adm!adm!RCLee@HI-MULTICS.arpa
From: RCLee@HI-MULTICS.arpa (Randy C. Lee)
Newsgroups: comp.unix.wizards
Subject: Hung ttys on Sun
Message-ID: <4837@brl-adm.ARPA>
Date: Tue, 10-Mar-87 02:33:43 EST
Article-I.D.: brl-adm.4837
Posted: Tue Mar 10 02:33:43 1987
Date-Received: Tue, 10-Mar-87 19:24:53 EST
Sender: news@brl-adm.ARPA
Lines: 27


Environment:  Sun 3/XX with SunOS 3.2

I have been trying to run xmodem that was passed around on the sources
list recently on our Suns.  To test I have been using the Sun as the
local system, connecting to our LAN using tip, logging into our local
Multics system, and starting xmodem on Multics to send a file.  To start
xmodem on the Sun I have tried using
    ~C xmodem rt start_up.ec

and suspending tip and doing
   xmodem rt start_up.ec << /dev/ttyb.

While the ~C does not hang the port, it also does not tranfer the file.
The suspend method definitely hangs the port and will not let go.  I
evenually disconnect (manually) because there is no response.  When I
login again to the Sun, I have a process <exiting> in the idle state
hanging around and trying to use tip again results in the message "all
ports busy".

Two questions:  What is the proper way to use xmodem with tip?  Is there
any way to get ttyb released without rebooting?  No form of kill -N
seems to toss it either from my ID or the root.

--Randy
  rclee@hi-multics.arpa
  ...!umn-cs!hi-csc!rclee