[    1.902462] ip (254) used greatest stack depth: 12168 bytes left
[   49.128715] netem: version 1.3
[  277.893042] ip (5991) used greatest stack depth: 12120 bytes left
[  565.803838] tc (16939) used greatest stack depth: 11896 bytes left
[  623.730795] pm_nl_ctl (20240) used greatest stack depth: 11856 bytes left