[    2.468065] ip (220) used greatest stack depth: 12576 bytes left
[    2.503875] ip (228) used greatest stack depth: 12520 bytes left
[    3.706139] ip (557) used greatest stack depth: 12040 bytes left
[   52.049528] netem: version 1.3
[  542.724439] pm_nl_ctl (24668) used greatest stack depth: 11856 bytes left