[    1.507350] ip (259) used greatest stack depth: 12232 bytes left
[    2.131416] ip (417) used greatest stack depth: 12008 bytes left
[    4.466200] ip (1063) used greatest stack depth: 11960 bytes left
[   50.987898] netem: version 1.3
[  565.171038] pm_nl_ctl (24827) used greatest stack depth: 11856 bytes left