[   12.328222] ip (226) used greatest stack depth: 12720 bytes left
[   12.399715] ip (254) used greatest stack depth: 12520 bytes left
[   60.926807] ip (3954) used greatest stack depth: 12336 bytes left
[   61.569502] ip (4123) used greatest stack depth: 12008 bytes left
[   62.245950] netem: version 1.3
[  543.473028] pm_nl_ctl (24865) used greatest stack depth: 11856 bytes left