[    2.575357] ip (227) used greatest stack depth: 12560 bytes left
[    2.599720] ip (236) used greatest stack depth: 12544 bytes left
[    2.647040] ip (254) used greatest stack depth: 12184 bytes left
[   49.315484] ip (3597) used greatest stack depth: 12056 bytes left
[   51.809836] netem: version 1.3
[   61.859223] ip (4455) used greatest stack depth: 12024 bytes left
[  560.641692] pm_nl_ctl (24667) used greatest stack depth: 11856 bytes left