[    1.748139] ip (250) used greatest stack depth: 12368 bytes left
[    2.083634] ip (280) used greatest stack depth: 12320 bytes left
[    8.044520] ip (831) used greatest stack depth: 12160 bytes left
[   46.637810] netem: version 1.3
[   56.043819] ip (2223) used greatest stack depth: 12000 bytes left
[  560.252448] tc (11914) used greatest stack depth: 11872 bytes left