[   30.245551] ip (2744) used greatest stack depth: 12168 bytes left
[   50.848862] netem: version 1.3
[   59.093397] ip (4461) used greatest stack depth: 12008 bytes left
[   67.904836] ip (4675) used greatest stack depth: 11960 bytes left
[  557.192029] pm_nl_ctl (24833) used greatest stack depth: 11784 bytes left