[    1.679509] ip (254) used greatest stack depth: 12264 bytes left
[    2.831712] ip (380) used greatest stack depth: 12200 bytes left
[   52.394793] netem: version 1.3
[  561.662304] tc (15685) used greatest stack depth: 11952 bytes left
[  619.131992] pm_nl_ctl (18831) used greatest stack depth: 11848 bytes left