[    2.260222] ip (255) used greatest stack depth: 12400 bytes left
[    2.468689] ip (272) used greatest stack depth: 12352 bytes left
[    4.972178] ip (476) used greatest stack depth: 12200 bytes left
[   50.662938] netem: version 1.3
[   58.243632] ip (2237) used greatest stack depth: 12120 bytes left
[  575.894352] tc (11911) used greatest stack depth: 11936 bytes left