[    1.590556] ip (253) used greatest stack depth: 12168 bytes left
[   68.167313] netem: version 1.3
[   76.994591] ip (4527) used greatest stack depth: 11912 bytes left
[  607.835320] tc (23602) used greatest stack depth: 11856 bytes left
[  670.169649] pm_nl_ctl (27730) used greatest stack depth: 11848 bytes left