I am using the Mandriva Linux - 2008 version.
Recently I have compiled the latest kernel source - 2.6.xx.5

I tried to compile a single module and tried inserting and removing using the commands - insmod and rmmod, they were successful.

But now i added another module file and tried to build the module. The build was successful.

Using the Insmod, i inserted both in to kernel space.
When i tried to removed the module, i get the error saying,

"Module is in use and can not be removed".

Is there any means - to kill this module.