[    1.705503] ip (255) used greatest stack depth: 12168 bytes left
[    6.539634] ip (841) used greatest stack depth: 11976 bytes left
[   49.833795] netem: version 1.3
[  555.934031] tc (16940) used greatest stack depth: 11896 bytes left
[  612.873500] pm_nl_ctl (20240) used greatest stack depth: 11800 bytes left