[    1.883394] ip (250) used greatest stack depth: 12384 bytes left
[    2.333397] ip (280) used greatest stack depth: 12336 bytes left
[   54.033297] netem: version 1.3
[  115.527129] ip (2629) used greatest stack depth: 12296 bytes left
[  607.980454] tc (11936) used greatest stack depth: 11920 bytes left