[    2.657134] ip (286) used greatest stack depth: 12272 bytes left
[    5.968343] ip (526) used greatest stack depth: 12016 bytes left
[   61.893654] netem: version 1.3
[  634.166694] tc (15594) used greatest stack depth: 11936 bytes left
[  699.521293] pm_nl_ctl (18732) used greatest stack depth: 11872 bytes left