[    1.373244] ip (220) used greatest stack depth: 12216 bytes left
[    2.086480] ip (414) used greatest stack depth: 11992 bytes left
[    3.243810] ip (727) used greatest stack depth: 11960 bytes left
[   50.907031] netem: version 1.3
[   91.181432] ip (4857) used greatest stack depth: 11952 bytes left
[  572.916404] pm_nl_ctl (24827) used greatest stack depth: 11856 bytes left