[    4.244227] ip (276) used greatest stack depth: 12512 bytes left
[    4.312422] ip (285) used greatest stack depth: 12400 bytes left
[    4.378298] ip (294) used greatest stack depth: 12272 bytes left
[   51.339955] netem: version 1.3
[  131.280547] ip (3751) used greatest stack depth: 12240 bytes left
[  574.696095] tc (15676) used greatest stack depth: 11896 bytes left
[  633.257242] pm_nl_ctl (18820) used greatest stack depth: 11880 bytes left