[    2.216481] ip (269) used greatest stack depth: 12600 bytes left
[    2.329131] ip (278) used greatest stack depth: 12552 bytes left
[    2.439502] ip (287) used greatest stack depth: 12344 bytes left
[   10.921692] ip (920) used greatest stack depth: 12128 bytes left
[   63.037054] netem: version 1.3
[  684.220958] pm_nl_ctl (18732) used greatest stack depth: 11624 bytes left