[    1.955568] ip (270) used greatest stack depth: 12320 bytes left
[   40.529612] ip (1996) used greatest stack depth: 12272 bytes left
[   47.024602] netem: version 1.3
[   87.218674] ip (2493) used greatest stack depth: 12160 bytes left
[  561.448646] tc (11910) used greatest stack depth: 11872 bytes left