[    2.524235] ip (292) used greatest stack depth: 12384 bytes left
[   13.035938] ip (1166) used greatest stack depth: 12256 bytes left
[   58.455880] netem: version 1.3
[  619.573413] tc (15685) used greatest stack depth: 11936 bytes left
[  686.615553] pm_nl_ctl (18830) used greatest stack depth: 11880 bytes left