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- Newsgroups: comp.sys.ibm.pc.rt
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!wupost!usc!elroy.jpl.nasa.gov!ucla-cs!maui.cs.ucla.edu!edwin
- From: edwin@maui.cs.ucla.edu (Edwin Tisdale)
- Subject: terminals on planar serial port RS232C interface
- Message-ID: <1992Nov13.035257.7985@cs.ucla.edu>
- Sender: usenet@cs.ucla.edu (Mr Usenet)
- Nntp-Posting-Host: maui.cs.ucla.edu
- Organization: UCLA, Computer Science Department
- Distribution: usa
- Date: Fri, 13 Nov 92 03:52:57 GMT
- Lines: 46
-
- We a have terminals connected to the psp - planar serial port RS232C interface.
- The terminal attached to the `S2' port usually displays the following prompt:
-
- Academic Information Systems 4.3 (unix) (ttys0)
-
- login:
-
- and permits me to `login' and work. But eventually, output to the terminal
- will suddenly stop. And I will not be able to restart it from the terminal.
- I can login from another workstation and kill the terminal session. But the
- process remains in an `<exiting>' condition:
-
- unix% ps -gx
- PID TT STAT TIME COMMAND
- 695 p0 S 0:00 -csh (csh)
- 716 p1 R 0:00 ps -gx
- 704 s0 S 0:00 -csh (csh)
- unix% kill -9 704
- unix% ps -gx
- PID TT STAT TIME COMMAND
- 695 p0 I 0:00 -csh (csh)
- 717 p1 R 0:00 ps -gx
- 704 s0 S 0:00 <exiting>
- unix%
-
- And I cannot use the terminal again unless I reboot or enter something on
- the terminal attached to the `S1' port. Then that terminal will freeze
- until I enter something on the terminal attached to the `S2' port again
- which will in turn freeze and so on. This behavior will continue until
- I reboot the system.
-
- I would appreciate any advice I can get to help me solve this problem.
- The following information may be useful:
-
- unix% stty everything
- new tty, speed 19200 baud, 32 rows, 80 columns
- even odd -raw -nl echo -lcase -tandem tabs -cbreak
- crt: (crtbs crterase crtkill ctlecho) -tostop
- -tilde -flusho -mdmbuf -litout -pass8 -nohang
- -pendin -decctlq -noflsh
- erase kill werase rprnt flush lnext susp intr quit stop eof
- ^? ^X ^W ^R ^O ^V ^Z/^Y ^C ^\ ^S/^Q ^D
- unix% cat /etc/motd
- 4.3 BSD UNIX (6151) #1: Thu Jul 27 15:00:42 PDT 1989
-
- Thanks in advance, Bob Tisdale (edwin@maui.cs.ucla.edu)
-