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000206_jaltman@watsun.cc.columbia.edu_Sun Jun 17 14:20:15 EDT 2001.msg
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Article: 12524 of comp.protocols.kermit.misc
Path: newsmaster.cc.columbia.edu!watsun.cc.columbia.edu!jaltman
From: jaltman@watsun.cc.columbia.edu (Jeffrey Altman)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: My kermit locks up under Linux 7.1 - any suggestions?
Date: 13 Jun 2001 02:00:49 GMT
Organization: Columbia University
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In article <hWxV6.93$Wt2.11949@e420r-sjo2.usenetserver.com>,
Michael Barton <mgb@cyberdude.com> wrote:
: I've tried both 7.0 and 7.1 of kermit (cku197 and cku199) - they both
: exhibit the same behavior under RedHat's Linux 7.1, but both work just
: fine under Redhat's Linux 6.2 and SGI's Irix 5.3. In all cases,
: kermit was built using:
:
: KFLAGS="-O2 -DTCP_NODELAY -DBIGBUFOK -DNODEBUG -DNOOLDMODEMS" make
: linux (or irix53)
:
: What happens is: I invoke kermit, then use the 'telnet' command to a
: remote AIX system.
:
: I can connnect just fine, and as long as I'm actively using the
: connection, all seems well. However, if the connection is left idle
: for an indeterminate period of time (maybe 3 minutes...) then kermit
: locks up HARD. I can't ctl-C, ctl-\, or enter any sequence of
: characters that resumes processing. the only thing that works is
: closing the XTerm window.
Clearly something in Linux changed out from underneath Kermit.
Can you attach to the locked process with gdb and get a stack trace?
That would indicate exactly where in the code the process is stuck.
Jeffrey Altman * Sr.Software Designer C-Kermit 7.1 Alpha available
The Kermit Project @ Columbia University includes Secure Telnet and FTP
http://www.kermit-project.org/ using Kerberos, SRP, and
kermit-support@kermit-project.org OpenSSL. SSH soon to follow.