[    2.630286] ip (263) used greatest stack depth: 12560 bytes left
[    2.755382] ip (273) used greatest stack depth: 12368 bytes left
[    2.876567] ip (282) used greatest stack depth: 12352 bytes left
[   57.125427] netem: version 1.3
[  512.095184] ip (9137) used greatest stack depth: 12072 bytes left
[  589.702405] tc (11935) used greatest stack depth: 11936 bytes left