[   12.321865] ip (220) used greatest stack depth: 12272 bytes left
[   12.402437] ip (247) used greatest stack depth: 12032 bytes left
[   13.030245] ip (414) used greatest stack depth: 12008 bytes left
[   62.209072] netem: version 1.3
[  554.155905] pm_nl_ctl (24859) used greatest stack depth: 11824 bytes left