[    1.617174] ip (247) used greatest stack depth: 12392 bytes left
[    1.778275] ip (259) used greatest stack depth: 12344 bytes left
[    2.752030] ip (352) used greatest stack depth: 12184 bytes left
[   49.303071] netem: version 1.3
[  584.470708] tc (11922) used greatest stack depth: 11872 bytes left