[    2.317041] ip (261) used greatest stack depth: 12672 bytes left
[    2.448671] ip (270) used greatest stack depth: 12360 bytes left
[    2.572178] ip (279) used greatest stack depth: 12200 bytes left
[    5.206365] ip (454) used greatest stack depth: 12168 bytes left
[   54.215557] netem: version 1.3
[  433.633089] ip (7489) used greatest stack depth: 12072 bytes left