[    7.675918] ip (946) used greatest stack depth: 12120 bytes left
[   51.976438] netem: version 1.3
[  228.279587] ip (5461) used greatest stack depth: 12040 bytes left
[  576.052756] tc (16940) used greatest stack depth: 11896 bytes left
[  643.775733] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left