[    3.206631] ip (393) used greatest stack depth: 12120 bytes left
[   30.068755] ip (1661) used greatest stack depth: 11976 bytes left
[   52.647896] netem: version 1.3
[  561.193024] tc (16940) used greatest stack depth: 11896 bytes left
[  620.742752] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left