Hung ttys on Sun
Randy C. Lee
RCLee at HI-MULTICS.arpa
Tue Mar 10 17:33:43 AEST 1987
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 at hi-multics.arpa
...!umn-cs!hi-csc!rclee
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