[    2.259935] ip (282) used greatest stack depth: 12368 bytes left
[    2.363039] ip (291) used greatest stack depth: 12352 bytes left
[    8.034566] ip (749) used greatest stack depth: 12312 bytes left
[   44.567863] ip (1990) used greatest stack depth: 12072 bytes left
[   51.496635] netem: version 1.3