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000198_news@columbia.edu_Tue Aug 22 14:36:23 1995.msg
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(5.65c+CU/IDA-1.4.4/HLK for <kermit.misc@watsun.cc.columbia.edu>); Tue, 22 Aug 1995 10:36:35 -0400
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: CKermit for OS/2 freezes
Date: 22 Aug 1995 14:36:23 GMT
Organization: Columbia University
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Message-Id: <41cq17$qei@apakabar.cc.columbia.edu>
References: <41agkn$315@belfort.daimi.aau.dk> <41ce7c$ae9@news.jhu.edu>
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In article <41ce7c$ae9@news.jhu.edu>, <murthy@pha.jhu.edu> wrote:
: In <41agkn$315@belfort.daimi.aau.dk>, guldager@daimi.aau.dk (Hans Guldager Knudsen) writes:
: >I have problems with Ckermit (5A191) for OS/2 on IBM-pentium machines,
: >running Warp (danish) and IBM TC/PIP 2.0.
: >
: >Sometimes (often) kermit freezes, and the only thing to do, is to kill the
: >session.
:
: I have this problem too. When I telnet over to the unix machines using
: kermit, kermit occaisonally freezes and I have to kill kermit. I have not
: been able to reproduce it at will which is why I haven't reported it. Note
: that this is distinct from having my whole machine freeze which happens
: reasonably often when I have my modem set to autoanswer!
:
If this happens when Kermit is in terminal (CONNECT) mode,
the first thing to try is Alt-r (RESET).
Explanation: perhaps Kermit has received an APC, DCS, or other escape
sequence which introduces a string of arbitrary length, which must be
terminated by another escape sequence called ST (String Terminator).
Now if an APC, DCS, etc, shows up by accident -- e.g. as garbage, or
because of a terminal-type or character-set mismatch, then Kermit will
wait forever for the ST that isn't coming, and will therefore appear to
be hung. Solution: RESET the terminal emulator with ST.
This is not, by the way, a shortcoming of Kermit -- it's exactly how VT220
and VT320 terminals work. And, unlike the real terminals, Kermit *does*
give you a reset button :-)
- Frank