[    1.578912] ip (249) used greatest stack depth: 12016 bytes left
[   51.084189] netem: version 1.3
[   66.115737] ip (4646) used greatest stack depth: 11960 bytes left
[  104.044263] ip (5211) used greatest stack depth: 11936 bytes left
[  543.954555] pm_nl_ctl (24833) used greatest stack depth: 11856 bytes left