[    2.045974] ip (265) used greatest stack depth: 12672 bytes left
[    2.124355] ip (272) used greatest stack depth: 12480 bytes left
[    2.349906] ip (292) used greatest stack depth: 12352 bytes left
[    4.621906] ip (462) used greatest stack depth: 12200 bytes left
[   54.517414] netem: version 1.3