[    1.533675] ip (257) used greatest stack depth: 12200 bytes left
[    2.174770] ip (407) used greatest stack depth: 12168 bytes left
[    3.474184] ip (738) used greatest stack depth: 11944 bytes left
[   52.437408] netem: version 1.3
[  582.548721] pm_nl_ctl (24823) used greatest stack depth: 11856 bytes left