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000286_news@columbia.edu_Sat Jul 8 16:08:23 1995.msg
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(5.65c+CU/IDA-1.4.4/HLK for <kermit.misc@watsun.cc.columbia.edu>); Sat, 8 Jul 1995 12:08:31 -0400
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Late lockup in terminal emulation
Date: 8 Jul 1995 16:08:23 GMT
Organization: Columbia University
Lines: 44
Message-Id: <3tmahn$pon@apakabar.cc.columbia.edu>
References: <3t1rqq$1lj@tera.com>
Nntp-Posting-Host: watsun.cc.columbia.edu
Keywords: Compaq Aero 4/25, Megahertz XJ2288, Kermit 3.14, MS-DOS 6.2
Apparently-To: kermit.misc@watsun.cc.columbia.edu
In article <3t1rqq$1lj@tera.com>, Burton Smith <burton@Tera.COM> wrote:
: In moving Kermit to my new traveling machine and modem (see keywords
: above) I ran into a problem that didn't improve when I upgraded to
: Kermit 3.14. Screen output hangs up pretty unpredictably -- sometimes
: just after the CONNECT message from the modem but occasionally after I
: have supplied my user name and we are partway into the "Password:"
: prompt.
:
What little text I see is perfect. Changing terminal emulation
: to VT102, ANSI, etc. doesn't help; neither does slower DTE speeds.
: There are probably a few flow control options I haven't yet tried :).
:
That this would happen so early in a session probably means it is not
a flow control problem, but you still might want to try telling Kermit
to "set flow none" just to rule out flow-control deadlocks.
Or, conversely, you might want to try using (if this is not what you are
already doing) the TELEPCMC.SCR dialing script to set up Kermit *and*
your modem optimally for flow control and all other pertinent parameters.
This script should work for the Megahertz / Telepath Xjack PCMCIA modems.
: The modem does not complain. Procomm (the old one) works fine, and
: so does Bitcom. The configuration looks OK except MSD shows 5 data bits
: for COMM2. IRQ, etc are vanilla. The PCMCIA tools give expected answers.
:
If using the aforementioned dialing script doesn't clear matters up for
you, then all of this taken together would tend to point towards your
system configuration; either an IRQ conflict (despite your sleuthing) or
a memory management problem:
. If you have told Kermit to "set terminal expanded-memory on" to make
it use expanded memory for rollback buffers, and there are any problems
with your memory layout, there is no end of bad things that can happen
as a consequence. Try telling Kermit to "set term expanded off" and
see if the problem goes away.
. If you have an IRQ conflict, it would affect Kermit, but not other
communications software that operates via polling rather than being
interrupt-driven.
If these suggestions don't help, send email direct to kermit@columbia.edu
with additional details.
- Frank