[    2.142411] ip (265) used greatest stack depth: 12240 bytes left
[   50.320037] ip (2566) used greatest stack depth: 12128 bytes left
[   59.239714] netem: version 1.3
[  622.293565] tc (15685) used greatest stack depth: 11936 bytes left
[  689.014722] pm_nl_ctl (18829) used greatest stack depth: 11880 bytes left