[    1.341394] ip (218) used greatest stack depth: 12216 bytes left
[    1.475871] ip (258) used greatest stack depth: 12168 bytes left
[   22.742942] ip (1865) used greatest stack depth: 11952 bytes left
[   52.207947] netem: version 1.3
[   85.746261] ip (4827) used greatest stack depth: 11872 bytes left
[  519.457959] tc (20915) used greatest stack depth: 11680 bytes left