[    1.985451] ip (254) used greatest stack depth: 12384 bytes left
[    2.097016] ip (261) used greatest stack depth: 12336 bytes left
[    9.759780] ip (849) used greatest stack depth: 12176 bytes left
[   51.850393] netem: version 1.3
[  559.909501] tc (11930) used greatest stack depth: 11872 bytes left