[    1.508134] ip (259) used greatest stack depth: 12168 bytes left
[   65.848055] netem: version 1.3
[   73.896281] ip (4518) used greatest stack depth: 12152 bytes left
[  603.864313] tc (23603) used greatest stack depth: 11880 bytes left
[  667.537460] pm_nl_ctl (27732) used greatest stack depth: 11800 bytes left