[    2.441150] ip (271) used greatest stack depth: 12368 bytes left
[    3.954330] ip (374) used greatest stack depth: 12352 bytes left
[   18.644652] ip (1031) used greatest stack depth: 12312 bytes left
[   53.790545] netem: version 1.3
[  116.664969] ip (2619) used greatest stack depth: 12072 bytes left