HP PCI Multiplexer Family Cabling, Diagnostics, and Troubleshooting Manual

Troubleshooting and Diagnostics
Troubleshooting
Chapter 6 69
Troubleshooting
Following are some of the problems which may be encountered due to
improper configuration of ports.
Excessive Frequent getty Spawning
Problem:
A console message similar to the following appears:
‘tty1a1’
getty keeps dying. There may be a problem
Cause:
This message usually indicates that the incoming CD signal connected to
a modem control port with CLOCAL set keeps toggling. The result is
that the getty process dies because the loss of carrier spawns a new
getty. If the system detects a getty process spawned too frequently on a
port, it prints this message and eventually fails to spawn a new getty
until an internal retry time has been reached or the port is disabled and
then re-enabled.
Terminal Login Problems
Problems:
• No login prompt
• Garbled message
• Problems logging in
Causes:
• Port is not enabled
• Port is set for wrong speed, parity, character size, etc
• Cabling problem
• Hardware problem