[    1.669906] ip (254) used greatest stack depth: 12168 bytes left
[   39.660719] ip (2444) used greatest stack depth: 12120 bytes left
[   52.603361] netem: version 1.3
[  573.476789] tc (16940) used greatest stack depth: 11864 bytes left
[  630.541815] pm_nl_ctl (20240) used greatest stack depth: 11832 bytes left