[   12.305565] ip (220) used greatest stack depth: 12312 bytes left
[   13.007524] ip (414) used greatest stack depth: 12080 bytes left
[   27.773353] ip (1716) used greatest stack depth: 12040 bytes left
[   62.156573] netem: version 1.3
[  577.613888] pm_nl_ctl (24861) used greatest stack depth: 11856 bytes left