[    1.571813] ip (254) used greatest stack depth: 12168 bytes left
[   48.755889] netem: version 1.3
[   78.296784] ip (3585) used greatest stack depth: 11912 bytes left
[  553.818066] tc (16940) used greatest stack depth: 11896 bytes left
[  611.322204] pm_nl_ctl (20242) used greatest stack depth: 11864 bytes left