home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Columbia Kermit
/
kermit.zip
/
newsgroups
/
misc.19970929-19971216
/
000194_news@newsmaster….columbia.edu _Wed Oct 29 03:55:58 1997.msg
< prev
next >
Wrap
Internet Message Format
|
2020-01-01
|
4KB
Return-Path: <news@newsmaster.cc.columbia.edu>
Received: from newsmaster.cc.columbia.edu (newsmaster.cc.columbia.edu [128.59.35.30])
by watsun.cc.columbia.edu (8.8.5/8.8.5) with ESMTP id DAA08575
for <kermit.misc@watsun.cc.columbia.edu>; Wed, 29 Oct 1997 03:55:58 -0500 (EST)
Received: (from news@localhost)
by newsmaster.cc.columbia.edu (8.8.5/8.8.5) id DAA25516
for kermit.misc@watsun; Wed, 29 Oct 1997 03:55:57 -0500 (EST)
Path: news.columbia.edu!news.new-york.net!news-peer.gsl.net!news.gsl.net!gip.net!news.idt.net!dispose.news.demon.net!demon!news.demon.co.uk!demon!fangorn.demon.co.uk!news
From: adrian@fangorn.demon.co.uk (Adrian Godwin)
Newsgroups: comp.protocols.kermit.misc
Subject: Problem with TRANSMIT / Linux 2.0.27 / Redhat 4.1
Date: 29 Oct 1997 00:51:36 -0000
Organization: Adrian's rest home for middle-aged electronics
Message-ID: <6361ao$b4j@fangorn.fangorn.demon.co.uk>
NNTP-Posting-Host: localhost.fangorn.demon.co.uk
X-NNTP-Posting-Host: fangorn.demon.co.uk [158.152.8.130]
Lines: 98
Xref: news.columbia.edu comp.protocols.kermit.misc:7975
I'm having some problems using the TRANSMIT command : the transmission
stops just short of the end of the file. The amount lost depends on
various factors (see below), but is generally just a few characters
short. The behaviour isn't totally repeatable : if I send the same
file 4 times, it might go OK once.
I'm using :
Kermit 6.0.192 patch 18 (ckermit-6.0.192-7.i386.rpm from columbia)
Linux 2.0.27 (Redhat 4.1 from Pacific HiTech CDROM)
I suppose I can't be totally sure of the reliability of the serial
port, PC chipsets and UARTS being what they are. But it's the same
serial port I use for various jobs (including interactive connections
to the same RS232 device, Kermit connections, a PPP link to the
internet and so on) and it seems to work reasonably well.
I've tried :
running Kermit -Y
( no difference from symtoms with standard startup script )
set file type { text / bin }
( the number of characters lost varies slightly )
enabling local echo
( the whole file is echoed to the screen, but not sent to the
line. There's another effect too : echo only works in binary
mode, not text )
telnet instead of serial connection
( the whole file appears to be sent over TCP. Another peculiarity
of local echo shows here : some of the echoing doesn't get
flushed out until I do a connect command )
sending the file multiple times
( the missing data never goes : i.e. it isn't just stuck
in the driver. 'Connect' doesn't flush it out, either )
monitoring the serial line
( I'm checking the line with a protocol analyser : the data
really isn't sent, it's not just the other machine losing it )
I haven't tried yet :
rebuilding Kermit from sources
( this is probably the next thing I'll try )
A later linux
( I know there's a later Redhat distribution )
Any further suggestions gratefully received.
Here's the file I'm sending - it's delimited with LF and has a single
LF after the last hex record. Either the last line or the penultimate
line gets truncated. (Note to anyone familiar with intel hex : the
records for addresses 0140 and 0150 were deliberately removed to
provoke the failure, since it's filesize dependent. I'm currently
working around it by padding out the file with some junk that the
receiver is known to ignore).
:03000000020038C3
:03000B000200CD23
:100030000D0A50726F62650075810F1200B61200D2
:10004000541200E2D2AF9000301200B19000301292
:10005000011F80FE758DFD758BFF53890F4389202D
:10006000438840759850438780D29922209807E5AD
:1000700022B401F8D322C298E599C3223099FDC277
:1000800099F59922C0E0C4118ED0E0118E22540F50
:1000900024028380E7303132333435363738394102
:1000A0004243444546740D117C740A117C22117C34
:1000B000A3E49370F922758C00758A005389F0438C
:1000C0008901D28C752164752201D2A922758AFF1B
:1000D000758CDBD28CD52109752164D5220375225C
:1000E000013285FF9074103124741031247413315F
:1000F00024740D312474803124752000740431245B
:10010000740E3124781474203127D8FA22B40A02EC
:1001100080E3B40D1274807520008008310DA3E4D3
:100120009370F922C380190520D33140E520B40A29
:100130000474C080EFB41407752000748080E52239
:1001600090316640FC22C296C297C294D294C29447
:08017000A293D29485FF9022B6
:00000001FF
-adrian