[    3.436732] ip (419) used greatest stack depth: 12232 bytes left
[   30.013740] ip (1531) used greatest stack depth: 12120 bytes left
[   53.445834] netem: version 1.3
[  649.648381] tc (21240) used greatest stack depth: 11952 bytes left
[  706.262322] pm_nl_ctl (24382) used greatest stack depth: 11872 bytes left