[    1.692943] ip (252) used greatest stack depth: 12856 bytes left
[    1.719453] ip (255) used greatest stack depth: 12816 bytes left
[    1.894605] ip (271) used greatest stack depth: 12552 bytes left
[    1.920366] ip (274) used greatest stack depth: 12472 bytes left
[    2.101141] ip (292) used greatest stack depth: 12200 bytes left
[   15.541906] ip (1276) used greatest stack depth: 11904 bytes left
[   49.116708] netem: version 1.3
[  614.246223] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left