[    2.293442] ip (280) used greatest stack depth: 12368 bytes left
[    3.567191] ip (379) used greatest stack depth: 12352 bytes left
[   53.436459] netem: version 1.3
[  494.355998] ip (8173) used greatest stack depth: 12312 bytes left
[  607.538222] tc (11923) used greatest stack depth: 11936 bytes left