[    1.929485] ip (251) used greatest stack depth: 12912 bytes left
[    2.011132] ip (256) used greatest stack depth: 12368 bytes left
[    2.129319] ip (263) used greatest stack depth: 12032 bytes left
[   54.363398] netem: version 1.3
[  593.685255] tc (11933) used greatest stack depth: 11872 bytes left