[    1.830137] ip (254) used greatest stack depth: 12168 bytes left
[    1.887586] ip (259) used greatest stack depth: 12120 bytes left
[   50.191481] netem: version 1.3
[  549.576112] tc (16942) used greatest stack depth: 11888 bytes left
[  607.029352] pm_nl_ctl (20243) used greatest stack depth: 11848 bytes left