[    1.887425] ip (255) used greatest stack depth: 12392 bytes left
[    2.210266] ip (277) used greatest stack depth: 12360 bytes left
[    2.325099] ip (286) used greatest stack depth: 12344 bytes left
[   38.651346] ip (1567) used greatest stack depth: 12192 bytes left
[   56.391194] netem: version 1.3