[    1.499131] ip (253) used greatest stack depth: 12168 bytes left
[   51.731684] netem: version 1.3
[  365.041119] ip (9052) used greatest stack depth: 12120 bytes left
[  554.683137] tc (16940) used greatest stack depth: 11872 bytes left
[  614.595061] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left