Cannot stat file /proc/4033/fd/48: Stale NFS file handle
Cannot stat file /proc/4033/fd/53: Stale NFS file handle
Cannot stat file /proc/4033/fd/55: Stale NFS file handle
Cannot stat file /proc/4033/fd/57: Stale NFS file handle
                     USER        PID ACCESS COMMAND
/dev/snd/controlC0:  ubuntu     4041 F.... pulseaudio