Segmentation Fault!

Hi, recently i installed h323 support for asterisk, and i dont have any problems with it.
But when i stop the asterisk server by typing STOP NOW, it displays the folowing meg:

[b]Beginning asterisk shutdown…
Executing last minute cleanups

== Destroying musiconhold processes
Asterisk cleanly ending (0).
Segmentation fault[/b]

I am only curious about the last line “Segmentation Fault”. i dont know what it means. does any body have a clue about this?

also i need to configure my h323.conf file and and make extension for it. how do i do that?
i have made extensions before, but for SIP channels. how do i make extensions for h323, is there any difference or no?