[    2.160393] ip (198) used greatest stack depth: 12296 bytes left
[    3.325684] ip (544) used greatest stack depth: 12056 bytes left
[   50.505104] netem: version 1.3
[   60.581066] ip (4443) used greatest stack depth: 12024 bytes left
[  562.910657] pm_nl_ctl (24817) used greatest stack depth: 11864 bytes left