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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!whuxl!whuxlm!akgua!gatech!seismo!lll-crg!lll-lcc!dual!islenet!uhpgvax!brown
From: brown@uhpgvax.UUCP (Robert H. Brown)
Newsgroups: net.bugs.2bsd
Subject: Possible bug in cu
Message-ID: <247@uhpgvax.UUCP>
Date: Tue, 10-Dec-85 21:08:50 EST
Article-I.D.: uhpgvax.247
Posted: Tue Dec 10 21:08:50 1985
Date-Received: Mon, 16-Dec-85 04:16:51 EST
Distribution: net
Organization: U. of Hawaii, HIG-PGD, Honolulu
Lines: 27

This may be just the incongruous ravings of a total amateur but
please help if you can. I am running a dec 11/73 under 2.9 and am
having a problem with cu. The problem results from trying to port a
file to a non-unix remote system (e. g. telemail). Because of
overrun problems, I have written a short program which transfers a
file by writing to the standard output a line at a time with a
variable-length sleep at the end of each line. If I don't toggle cu
so that it does this silently (no output at terminal from the
the file transfer) I get garbage interspersed with a few correct
characters. Otherwise the transfer works fine in the silent mode.
The same goes for the standard cu file-transfer facility except that
in the noisy mode the system eventually crashes with a "panic: timeout 
table overflow" message.  If I attempt to kill cu from another port
the processes die but garbages continue to dump to the offending
port for a long time (several minutes) after ps says the processes
are dead. I also find that if I start up cu with a tee to save a 
record of a cu session, the destination file has mostly unprintable
garbage in it very similar to the garbage dumped at the terminal
during a file transfer. 

I have talked to my friendly neighborhood guru about this
and he theorizes it's a bug in the kernel, but doesn't have the time
to deal with the problem. Has anyone seen this
problem or am I just hallucinating??!! It is entirely possible that it
has been posted on the net and I have missed it or am too stupid
to recognize it.
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