[    2.540519] ip (256) used greatest stack depth: 12320 bytes left
[    3.159265] ip (287) used greatest stack depth: 12272 bytes left
[   66.486559] netem: version 1.3
[  635.917601] tc (15590) used greatest stack depth: 11936 bytes left
[  702.622107] pm_nl_ctl (18730) used greatest stack depth: 11912 bytes left