[    2.492847] ip (211) used greatest stack depth: 12344 bytes left
[    2.613297] ip (252) used greatest stack depth: 12096 bytes left
[    4.366804] ip (715) used greatest stack depth: 12056 bytes left
[   52.134545] netem: version 1.3
[  551.641107] pm_nl_ctl (24671) used greatest stack depth: 11808 bytes left