[    1.995804] ip (254) used greatest stack depth: 12368 bytes left
[    2.316857] ip (281) used greatest stack depth: 12320 bytes left
[   23.829932] ip (1118) used greatest stack depth: 12160 bytes left
[   52.217775] netem: version 1.3
[  531.620435] ip (10548) used greatest stack depth: 12144 bytes left
[  593.175818] tc (11906) used greatest stack depth: 11872 bytes left