[    1.584746] ip (249) used greatest stack depth: 12040 bytes left
[   17.043976] ip (1701) used greatest stack depth: 12008 bytes left
[   51.379417] netem: version 1.3
[   57.966334] ip (4477) used greatest stack depth: 11960 bytes left
[  540.834891] pm_nl_ctl (24814) used greatest stack depth: 11856 bytes left