[    2.109094] ip (182) used greatest stack depth: 12296 bytes left
[    2.124614] ip (187) used greatest stack depth: 12256 bytes left
[    2.176736] ip (204) used greatest stack depth: 12048 bytes left
[   50.831770] netem: version 1.3
[  552.723647] pm_nl_ctl (24830) used greatest stack depth: 11864 bytes left