[    1.538058] ip (250) used greatest stack depth: 12368 bytes left
[    1.859790] ip (280) used greatest stack depth: 12320 bytes left
[    8.792451] ip (913) used greatest stack depth: 12032 bytes left
[   33.211637] ip (1375) used greatest stack depth: 12000 bytes left
[   46.151885] netem: version 1.3
[  531.093150] tc (11915) used greatest stack depth: 11872 bytes left