[    2.407798] ip (267) used greatest stack depth: 12528 bytes left
[    2.648701] ip (286) used greatest stack depth: 12344 bytes left
[   11.791093] ip (935) used greatest stack depth: 12192 bytes left
[   61.590844] netem: version 1.3
[   83.909242] ip (2805) used greatest stack depth: 12064 bytes left
[  634.576685] tc (13799) used greatest stack depth: 11936 bytes left