[   38.620944] ip (2274) used greatest stack depth: 12136 bytes left
[   50.264167] netem: version 1.3
[   58.933286] ip (3244) used greatest stack depth: 11944 bytes left
[  562.976887] tc (16942) used greatest stack depth: 11920 bytes left
[  620.474887] pm_nl_ctl (20244) used greatest stack depth: 11864 bytes left