[    1.549135] ip (255) used greatest stack depth: 12168 bytes left
[    4.853836] ip (668) used greatest stack depth: 12120 bytes left
[   49.470773] netem: version 1.3
[  568.395672] tc (16939) used greatest stack depth: 11888 bytes left
[  627.139795] pm_nl_ctl (20239) used greatest stack depth: 11848 bytes left