Problem with message "Command is respawning to rapidly"

[TSch]

Hi everyone,

since a few weeks we keep getting the following message on our system:

INIT: /usr/sbin/getty /dev/lft0
error: command is respawning to rapidly


what's happening there?
what might have caused this ?
how can we get rid of it?

Thanks in advance.

Regards
Thomas

 

[trunix]

This idicates a problem with whatever hardware is connected to /dev/lft0
It may be sending continous connection requests.
Try disconnecting / resetting the device.

 

[aixqueen]

Respawning Too Rapidly Errors

The system records the number of getty processes spawned for a particular
tty in a short time period. If the number of getty processes spawned in this
time frame exceeds five, then the Respawning Too Rapidly
error is displayed on the console and the port is disabled by the system.

The tty stays disabled for about 19 minutes or until the system administrator
enables the port again. At the end of the 19 minutes, the system will
automatically enable the port, resulting in the spawning of a new getty process.


Possible Causes

Incorrect modem configuration
A port is defined and enabled but no cable or device is attached to it
Bad cabling or loose connection
Noise on communication line
Corruption of, or tampering with, /etc/environment or /etc/inittab files
tty configuration is corrupted
Hardware is defective

Procedures for Recovery

Correct modem configuration:

Ensure that the modem's carrier detect is not forced high.
Note: The following applies to Hayes-compatible modems.
1.Connect to the modem and examine the active profile.
2.The modem's carrier detect should be set to &C1 rather
than &C0 (forced high). Use the following
AT modem commands to set and change the carrier attribute:

AT&C1
AT&W

Notes:
1.Refer to "Sending AT Commands with the cu Command"
2.Refer to your modem documentation for further information.

Disable the tty, remove the tty definition, or attach a device to the port:
To disable the tty definition use the chdev command as follows:

chdev -l ttyName -a Login=disable

After running this command, the tty will not become enabled after
a system restart.

To remove the tty definition:
1.Disable the tty port, use the pdisable command, enter:

pdisable ttyName

2.Remove the tty definition from the system. Refer
to "Managing TTY Devices" for further information.

Check for bad cables or loose connections:
1.Check cabling. Tighten loose connections and replace damaged or
inappropriate connectors.
2.Verify that the suspected cabling is IBM serial cable P/N 6323741
or that the cable meets the same
standard. Replace damaged or inappropriate cables.

Eliminate noise on communication line:
1.Verify that cabling is correct length and impedance.
2.Ensure that toroid rings are in place where needed on longer cables.
3.Check routing of cables; they should not be close to fluorescent
lights or motors.

Check for corruption of, or tampering with, the /etc/environment
or the /etc/inittab files:
1.If possible, compare these files against known good copies.
2.Copy the files as a backup and make changes as needed.
3.In the /etc/environment file, remove any lines that are not:
blank lines
comment lines
variable=value
4.In the /etc/inittab file, examine the tty devices lines. If the tty is set
to off, it is likely that the tty port is not being used. If it is not
being used, remove the tty definition or attach a device to the port.

Remove corrupted tty configuration:
1.Remove the tty definition. Use the Web-based System
Manager Devices application or see
"Managing TTY Devices" for further information.
2.If you want a hard copy record of the tty definition before removing
it, press the Image key (F8 or Esc+8). This will capture the
current screen image and copy it to the smit.log file in
your $HOME directory.
3.Read the tty definition. See the instructions for
Adding a TTY under "Managing TTY Devices" .

Locate defective hardware:
1.Run diagnostics using the diag command.
2.If any hardware problems are detected, follow local
problem solving procedures.

 

[avadh]

Hello,

do the below listed steps.
1)lscons -> if you get /dev/tty0 then you have ascii console.
2) create empty Xserver file in /etc/dt/dtconfig director if exist.
3) then kill /etc/dt/dtconfig -kill and kill CDE
4) restart CDE by /etc/rc.dt;exit
this will stop the CDE message from coming up. You are starting Common Desktop Enviornment and console is a ASCII console.

 

[gheist]

you have an lft0 only if your RS/6000 has videocard, so you should configure your videocard properly or if you dont have a videocard disable confusing line in /etc/inittab by prepending a colon before it