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000353_news@columbia.edu_Mon Dec 5 15:45:05 1994.msg
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Lockup problem
Date: 5 Dec 1994 15:45:05 GMT
Organization: Columbia University
Lines: 35
Message-Id: <3bvci1$lu8@apakabar.cc.columbia.edu>
References: <3bsjb2$1e1@news-2.csn.net>
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In article <3bsjb2$1e1@news-2.csn.net>, Gary Fritz <gfritz@csn.net> wrote:
>I just downloaded the latest/greatest Kermit (binaries for HP-UX/700)
>from kermit.columbia.edu, but it still has the same problem my old
>kermit did: it locks up.
>
>I recently tried to get Kermit running on my system. At first it worked,
>though not at all well, and it caused some strange problems with accessing
>the modem line (sorry, though, I can't remember the specifics). Then
>it started locking up as soon as it tried to access the modem. If I
>started it with "kermit -l /dev/cul01" it would lock; if I started it
>with "kermit" it would give me a prompt until I said "set line /dev/cul01".
>It never unhangs until I hit ^C.
>
>I cleared the /usr/lib/uucp locks on the line, but that's not the problem.
>What else would cause Kermit to lock?
>
Did you read the HP-UX section of ckuker.bwr? Quoting:
Before you can use serial ports on the HP-9000, you must configure them as
either "terminals" or "modems" with SAM ("peripheral devices"..."terminals and
modems"), as described in the HP manual, "Configuring HP-UX for Peripherals:
HP 9000". If you attempt to use a serial device before it has been configured
this way, it will not work properly; typical symptoms are (a) no communication
at all; (b) nonfunctional modem signals; and/or (c) massive amounts of
character loss in both directions.
(end quote)
Other things to watch out for: bidirectional ttys (see earlier posting about
this), improperly configured modem (DSR or CTS signals missing, for example),
or perhaps commands in your .kermrc that might cause the open() to hang:
"set carrier on nnn", "set flow rts/cts" (when CTS is not being asserted),
etc.
- Frank