[    2.314928] ip (285) used greatest stack depth: 12248 bytes left
[   49.140337] netem: version 1.3
[  474.812089] ip (11158) used greatest stack depth: 12232 bytes left
[  568.871662] tc (15678) used greatest stack depth: 11952 bytes left
[  626.794796] pm_nl_ctl (18824) used greatest stack depth: 11864 bytes left