[    1.460728] ip (256) used greatest stack depth: 12232 bytes left
[    3.223330] ip (711) used greatest stack depth: 12040 bytes left
[   16.780253] ip (1691) used greatest stack depth: 11992 bytes left
[   50.995562] netem: version 1.3
[  550.207723] pm_nl_ctl (24825) used greatest stack depth: 11856 bytes left