[    2.151140] ip (184) used greatest stack depth: 12560 bytes left
[    2.190748] ip (197) used greatest stack depth: 12528 bytes left
[    2.253504] ip (223) used greatest stack depth: 12424 bytes left
[    4.308126] ip (848) used greatest stack depth: 12048 bytes left
[   50.092582] netem: version 1.3
[  545.768264] pm_nl_ctl (24845) used greatest stack depth: 11864 bytes left