[    3.576849] ip (254) used greatest stack depth: 12296 bytes left
[    3.888296] ip (285) used greatest stack depth: 12248 bytes left
[   53.422622] netem: version 1.3
[  573.963728] tc (15678) used greatest stack depth: 11952 bytes left
[  631.740611] pm_nl_ctl (18822) used greatest stack depth: 11864 bytes left