[Click] Errors stopping click kernel level configurations

[betamaz]

Hi,

I am working on some test configuration files that run as in the linux
kernel.  I use click-install to start a click configuration file, and
to stop it, I use click-uninstall.  Sometimes when the thread runs for
a while, the linux 'rmmod' would not let allow the uninstall
operation.  The error is:

[proc]# click-uninstall
rmmod: module click is not loaded
click-uninstall: cannot remove Click module from kernel
[proc]#

Why does the kernel get stuck on this thread? Is there any other way
to stop a configuration file? I've tried killing the thread manually
(kill unix command), but with bad side effects.

Thanks,
Bita.
---------------------------------
here is the config file, for reference:
// test file
pd :: PollDevice(eth0);	// processing type: push
th :: ToHost();		// processing type: push
td ::ToDevice(eth0);	// processing type: pull
//ths :: ToHostSniffers(); // processing type: push

pd -> th;
Idle -> td;		// process type: agnostic