[   50.272938] ip (3751) used greatest stack depth: 12104 bytes left
[   52.469073] netem: version 1.3
[   59.148303] ip (4484) used greatest stack depth: 11896 bytes left
[  503.132880] tc (20916) used greatest stack depth: 11704 bytes left
[  548.583563] pm_nl_ctl (24822) used greatest stack depth: 11544 bytes left