[   54.134781] netem: version 1.3
[   64.293889] ip (3233) used greatest stack depth: 11976 bytes left
[  574.480934] tc (16942) used greatest stack depth: 11864 bytes left
[  692.929963] pm_nl_ctl (20246) used greatest stack depth: 11840 bytes left
[  693.321373] kworker/2:2 (62) used greatest stack depth: 11704 bytes left