10/11/95
 
  TTY HOG Error
 
 
 
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       Information in this document is correct to the best of our
       knowledge at the time of this writing.  Please send feedback
       by fax to "AIXServ Information" at (512) 823-4009.
 
       Please use this information with care.  IBM will not be
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       operational environment.
 
  TTY HOG ERROR
 
       MESSAGE:  "TTY TTYHOG"
 
       DESCRIPTION:  TTYHOG Overrun -- The sending device is
       ignoring flow control.  This error occurs after the hardware
       FIFO has been accessed and has written to the software
       buffer.  In other words the tty hog error is logged because
       the buffer where incoming characters are placed is over-
       flowing.  When the buffer is about 3/4's full, the device
       driver notifies the hardware to ( in this case tty ) send
       the XOFF char to the sender to stop sending data.  If the
       sender continues to send data AND the buffer is not emptied,
       the device driver flushes the buffer and logs the error
       message in the error log.
 
       THINGS TO CHECK
 
       o   Check cabling -- cables without proper shielding can
           cause problems; cables without proper pinouts can cause
           problems.
 
       o   Check flow control of device (xon/xoff, rts/cts).  Keep
           in mind that hardware handshaking requires correct
           cabling, pinouts, and rts on the device stack (e.g.,
           "stty add rts < /dev/tty0").
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                                                        TTY HOG Error  1
 
 
                                                                10/11/95
 
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  081192DAYALA END OF DOCUMENT (hog.zap, 4FAX# 2444)
 
 
 
                                                        TTY HOG Error  2