[    2.315626] ip (281) used greatest stack depth: 12360 bytes left
[    4.990563] ip (473) used greatest stack depth: 12344 bytes left
[   55.216763] netem: version 1.3
[  537.744379] ip (10252) used greatest stack depth: 12312 bytes left
[  604.055520] tc (11928) used greatest stack depth: 11936 bytes left