title: Not able to remove a loadable kernel module
body: <p>I'm writing a loadable kernel module and trying to test it. After inserting it I was trying to remove it using <code>rmmod xxx</code> command, but I get an error saying <code>module xxx is in use</code> and the module gets stuck and I can't remove it. Any idea how to remove the module without rebooting the entire machine ? (linux Kernel v. 3.5.0)</p>
  
  <p>Note: <code>rmmod -f</code> prints <code>Error: device or resource busy</code></p>