[    1.913473] ip (255) used greatest stack depth: 12392 bytes left
[    2.395482] ip (289) used greatest stack depth: 12360 bytes left
[    3.583029] ip (379) used greatest stack depth: 12352 bytes left
[    4.930233] ip (475) used greatest stack depth: 12344 bytes left
[   23.777283] ip (1110) used greatest stack depth: 12072 bytes left
[   52.409799] netem: version 1.3