[    2.126459] ip (268) used greatest stack depth: 12624 bytes left
[    2.230143] ip (278) used greatest stack depth: 12360 bytes left
[    2.331285] ip (287) used greatest stack depth: 12344 bytes left
[    2.435100] ip (296) used greatest stack depth: 12032 bytes left
[   56.841159] netem: version 1.3
[  671.478036] pm_nl_ctl (16873) used greatest stack depth: 11736 bytes left