[    1.992507] ip (257) used greatest stack depth: 12392 bytes left
[    2.317783] ip (280) used greatest stack depth: 12344 bytes left
[   57.760667] ip (2859) used greatest stack depth: 12160 bytes left
[   57.898500] netem: version 1.3
[  702.933470] pm_nl_ctl (18733) used greatest stack depth: 11624 bytes left