They do wake.
> forking one process since it gets loaded due to a mount command and that
> one nfsiod is necessary to handle that mount. But what about the other 3?
> And when every nfs mount is unmounted, the original 4 don't terminate. They
> just hang around. As a result the use count of nfs.o is always some number
> that is equal or greater than 4.
Yep. They provide asynchronous handlers for NFS requests to do things like
readahead.
Alan