Printing "powernow-k8 transition frequency failed" after install XEN

After I installed XEN hypervisor, the tty0 (CTRL+ALT+F1) prints "powernow-k8 transition frequency failed" to STDOUT continously, how to solve it?

asked Apr 8, 2015 by harryxiyou (5,830 points)

1 Answer

 
Best answer
answered Apr 8, 2015 by harryxiyou (5,830 points)

How to make the settings persistent (take effect after reboot)?

commented Apr 9, 2015 by Eric Z Ma (44,280 points)

1, Create script file '/etc/init.d/stop_pwoerk8.sh' as follows.

harry2vera@node1:/etc/init.d$ cat stop_pwoerk8.sh 
#! /bin/sh

rmmod powernow_k8

2, Add the full PATH of it into '/etc/rc.local' file as follows.

harry2vera@node1:/etc/init.d$ cat /etc/rc.local
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

/etc/init.d/stop_pwoerk8.sh

exit 0

NOTE: I tested above solution on debian Wheezy.

References: http://stackoverflow.com/questions/12973777/how-to-run-a-shell-script-at-startup

commented Apr 9, 2015 by harryxiyou (5,830 points)
edited Apr 9, 2015 by harryxiyou

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