[    2.256716] ip (274) used greatest stack depth: 12344 bytes left
[    2.364854] ip (283) used greatest stack depth: 12328 bytes left
[   54.153597] netem: version 1.3
[  574.271497] ip (12180) used greatest stack depth: 12288 bytes left
[  585.555457] tc (12614) used greatest stack depth: 11920 bytes left