locate.updatedb breaks on inaccessible smbfs mounts

[Rumko]

when a smbfs share is unavailable (the machine is turned off or the samba 
server), locate.updatedb breaks. Running "find / ! \( -fstype ufs \) -prune -or
 -print" manually breaks at:
find: router: Connection refused

/mnt/router is the unavailable smbfs share
because of this the locate database only contains entries in / to /mnt/router
and doesnt for example have /usr in it.