[    1.952968] ip (267) used greatest stack depth: 12584 bytes left
[    2.050926] ip (276) used greatest stack depth: 12528 bytes left
[    2.082649] ip (279) used greatest stack depth: 12448 bytes left
[    2.147563] ip (285) used greatest stack depth: 12272 bytes left
[   38.386062] ip (2108) used greatest stack depth: 12240 bytes left
[   50.036051] netem: version 1.3
[   72.236364] ip (3160) used greatest stack depth: 12104 bytes left
[  583.840095] tc (15678) used greatest stack depth: 11952 bytes left
[  640.156563] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left