Cannot stat file /proc/13264/fd/15: Stale NFS file handle
Cannot stat file /proc/13330/fd/20: Stale NFS file handle
Cannot stat file /proc/13334/fd/19: Stale NFS file handle
Cannot stat file /proc/13589/fd/4: Stale NFS file handle
Cannot stat file /proc/13589/fd/20: Stale NFS file handle
                     USER        PID ACCESS COMMAND
/dev/snd/controlC0:  ubuntu     3817 F.... pulseaudio