[    1.393192] ip (218) used greatest stack depth: 12216 bytes left
[   11.339703] ip (1532) used greatest stack depth: 12008 bytes left
[   51.400036] netem: version 1.3
[   59.594076] ip (4486) used greatest stack depth: 11960 bytes left
[  554.630081] pm_nl_ctl (24825) used greatest stack depth: 11856 bytes left