+++ This bug was initially created as a clone of Bug #481794 +++ Created an attachment (id=330115) Proposed patch. If a machine is both a NFS server and a client with nfs shares mounted. The command service netfs stop will unmount these nfs shares correctly. However it also unmounts /proc/fs/nfsd which is required by the nfs server on the machine. This prevents other clients from mounting nfs shares from this server. Reproducer: 1) create nfs share and start nfs service. 2) mount nfs share 3) service netfs stop This will unmount the nfs service. It also unmounts /proc/fs/nfsd which in turn prevents others from mounting from the servers nfs servers.