[    2.001499] ip (254) used greatest stack depth: 12368 bytes left
[    2.269383] ip (271) used greatest stack depth: 12320 bytes left
[   45.962135] ip (1978) used greatest stack depth: 12240 bytes left
[   53.119361] netem: version 1.3
[   69.580748] ip (2374) used greatest stack depth: 12032 bytes left
[  581.934875] tc (11907) used greatest stack depth: 11872 bytes left