[    1.664116] ip (250) used greatest stack depth: 12368 bytes left
[    1.975790] ip (280) used greatest stack depth: 12320 bytes left
[   15.202934] ip (1028) used greatest stack depth: 12272 bytes left
[   39.337082] ip (1896) used greatest stack depth: 12128 bytes left
[   47.208139] netem: version 1.3