[    1.386975] ip (216) used greatest stack depth: 12216 bytes left
[    1.448545] ip (229) used greatest stack depth: 12008 bytes left
[   52.598803] netem: version 1.3
[   62.378675] ip (4487) used greatest stack depth: 11960 bytes left
[  570.315572] pm_nl_ctl (24823) used greatest stack depth: 11856 bytes left