[    1.781616] ip (266) used greatest stack depth: 12408 bytes left
[    1.927139] ip (285) used greatest stack depth: 12344 bytes left
[    2.004103] ip (294) used greatest stack depth: 12328 bytes left
[    2.938008] ip (407) used greatest stack depth: 12200 bytes left
[   50.056628] netem: version 1.3
[  643.288862] pm_nl_ctl (18820) used greatest stack depth: 11752 bytes left