[    2.696690] ip (419) used greatest stack depth: 12200 bytes left
[   48.616537] netem: version 1.3
[  135.664402] ip (4062) used greatest stack depth: 12120 bytes left
[  566.245648] tc (16942) used greatest stack depth: 11912 bytes left
[  621.715303] pm_nl_ctl (20243) used greatest stack depth: 11864 bytes left