netlink socket creation problem

[akry]

After the following scenario, netlink sockets cannot be created.

1. Invoke netlink_kernel_create() for the first time (a socket is properly created)
2. Remove the kernel module
3. Install the kernel module again
4. Invoke netlink_kernel_create() again

I suppose a netlink socket is created after the scenario 4, but not.

[akry]

need to implement netlink connection in another way such as open vswitch datapath.