[    1.956788] ip (249) used greatest stack depth: 12392 bytes left
[    2.138942] ip (261) used greatest stack depth: 12344 bytes left
[   16.646039] ip (1024) used greatest stack depth: 12296 bytes left
[   49.938786] netem: version 1.3
[  306.014508] ip (4562) used greatest stack depth: 12184 bytes left