[    1.525457] ip (249) used greatest stack depth: 12200 bytes left
[    1.548224] ip (258) used greatest stack depth: 12168 bytes left
[    2.771115] ip (578) used greatest stack depth: 11872 bytes left
[   52.227832] netem: version 1.3
[   83.247924] ip (5043) used greatest stack depth: 11848 bytes left
[  493.443938] tc (20906) used greatest stack depth: 11704 bytes left