[    2.452297] ip (223) used greatest stack depth: 12216 bytes left
[   52.011458] netem: version 1.3
[   57.781513] ip (4443) used greatest stack depth: 12168 bytes left
[   57.861942] ip (4469) used greatest stack depth: 11960 bytes left
[  534.202659] pm_nl_ctl (24831) used greatest stack depth: 11832 bytes left