[    1.934592] ip (269) used greatest stack depth: 12616 bytes left
[    1.964102] ip (272) used greatest stack depth: 12488 bytes left
[    1.992841] ip (275) used greatest stack depth: 12440 bytes left
[    2.077717] ip (284) used greatest stack depth: 12408 bytes left
[    2.161636] ip (293) used greatest stack depth: 12216 bytes left
[   55.261679] netem: version 1.3
[  509.873999] ip (15432) used greatest stack depth: 12136 bytes left
[  558.308474] tc (16942) used greatest stack depth: 11928 bytes left
[  620.505482] pm_nl_ctl (20243) used greatest stack depth: 11880 bytes left