[    1.854261] ip (250) used greatest stack depth: 12384 bytes left
[    1.944926] ip (255) used greatest stack depth: 12336 bytes left
[    3.363781] ip (361) used greatest stack depth: 12296 bytes left
[    8.571491] ip (747) used greatest stack depth: 12056 bytes left
[   52.697111] netem: version 1.3