[    2.268576] ip (284) used greatest stack depth: 12272 bytes left
[   54.120325] netem: version 1.3
[  489.120942] ip (12449) used greatest stack depth: 12240 bytes left
[  559.884408] tc (15680) used greatest stack depth: 11952 bytes left
[  615.820786] pm_nl_ctl (18825) used greatest stack depth: 11768 bytes left