[    1.686539] ip (254) used greatest stack depth: 12224 bytes left
[   50.067649] netem: version 1.3
[  568.805473] ip (16121) used greatest stack depth: 12176 bytes left
[  572.115448] tc (16519) used greatest stack depth: 11920 bytes left
[  629.633406] pm_nl_ctl (19767) used greatest stack depth: 11872 bytes left