[    1.605626] ip (254) used greatest stack depth: 12168 bytes left
[   50.249756] netem: version 1.3
[   63.002980] ip (3389) used greatest stack depth: 12120 bytes left
[  539.065290] tc (16942) used greatest stack depth: 11896 bytes left
[  597.959061] pm_nl_ctl (20243) used greatest stack depth: 11864 bytes left