[    1.875311] ip (268) used greatest stack depth: 12728 bytes left
[    1.964557] ip (277) used greatest stack depth: 12584 bytes left
[    2.060211] ip (286) used greatest stack depth: 12488 bytes left
[    2.153811] ip (295) used greatest stack depth: 12232 bytes left
[    4.726249] ip (543) used greatest stack depth: 12088 bytes left
[   53.087128] netem: version 1.3
[  639.826659] tc (21653) used greatest stack depth: 11952 bytes left
[  696.910096] pm_nl_ctl (24796) used greatest stack depth: 11872 bytes left