[    1.788659] ip (254) used greatest stack depth: 12248 bytes left
[    3.964710] ip (417) used greatest stack depth: 12104 bytes left
[   50.354444] netem: version 1.3
[  552.036057] tc (15679) used greatest stack depth: 11928 bytes left
[  610.100763] pm_nl_ctl (18822) used greatest stack depth: 11872 bytes left