[    1.993852] ip (295) used greatest stack depth: 12248 bytes left
[   48.045626] netem: version 1.3
[  548.996317] ip (15462) used greatest stack depth: 12232 bytes left
[  550.991674] tc (15678) used greatest stack depth: 11952 bytes left
[  609.862735] pm_nl_ctl (18824) used greatest stack depth: 11864 bytes left