On Tue, 2012-10-02 at 14:14 -0700, Alexander Duyck wrote:

I think something may have been missed in this patch.

With it applied to net-next I am unable to remove the ixgbe driver after
running a routing traffic test.  The specific message I am getting is:
    unregister_netdevice: waiting for eth2 to become free. Usage count = -7

Yes, I realized later that rt_set_nexthop(), called from
__mkroute_input() was responsible to do the caching...

So another version is needed, I'll do that tomorrow unless David can fix
the problem while I sleep a bit ;)