Once the system gets into this state, the only remedy is a forced power-off. What seems to be happening is that an NFS filesystem that auto-mounted over a WiFi connection cannot be unmounted because the WiFi connection is enabled only for my login and gets torn down when my UID is logged off.
Any suggestions on how I can configure things to avoid this? I
really don’t want to expose my WPA2 key by making the connection available to all users.