[   40.919605] ip (2746) used greatest stack depth: 12120 bytes left
[   48.673395] netem: version 1.3
[  129.260682] ip (3939) used greatest stack depth: 11944 bytes left
[  571.771214] tc (16939) used greatest stack depth: 11896 bytes left
[  629.008140] pm_nl_ctl (20241) used greatest stack depth: 11848 bytes left