[    1.619487] ip (254) used greatest stack depth: 12168 bytes left
[   50.324329] netem: version 1.3
[  517.864574] ip (14999) used greatest stack depth: 12120 bytes left
[  574.770499] tc (16939) used greatest stack depth: 11888 bytes left
[  630.452733] pm_nl_ctl (20241) used greatest stack depth: 11848 bytes left