The knfsd-1.4.4 package has a separate nfslock initscript that attempts to start rpc.statd and a new daemon rpc.lockd. The script fails with the message Starting NFS lockd: lockdsvc: Invalid argument [FAILED] presumably because the kernel-2.2.5-22 package does not enable (or possibly even have) this as a separate service.
This is correct, a future release of the kernel rpm will have a patch that will split lockd in a separate kernel thread that can be fired up from user space. I did not have time to get around it yet. :-)