[   57.483657] netem: version 1.3
[   67.981744] ip (2996) used greatest stack depth: 12128 bytes left
[  387.030297] ip (7165) used greatest stack depth: 12104 bytes left
[  642.974658] tc (15686) used greatest stack depth: 11936 bytes left
[  710.649777] pm_nl_ctl (18831) used greatest stack depth: 11704 bytes left