[    1.866984] ip (267) used greatest stack depth: 12496 bytes left
[    2.103232] ip (295) used greatest stack depth: 12248 bytes left
[   48.413842] netem: version 1.3
[  551.851977] tc (15679) used greatest stack depth: 11952 bytes left
[  611.406719] pm_nl_ctl (18824) used greatest stack depth: 11872 bytes left