[    1.904008] ip (255) used greatest stack depth: 12376 bytes left
[    2.334748] ip (286) used greatest stack depth: 12344 bytes left
[    3.680150] ip (392) used greatest stack depth: 12328 bytes left
[    9.011547] ip (784) used greatest stack depth: 12144 bytes left
[   48.282110] ip (2102) used greatest stack depth: 12048 bytes left
[   55.903548] netem: version 1.3