[    1.770309] ip (253) used greatest stack depth: 12368 bytes left
[    2.116475] ip (287) used greatest stack depth: 12320 bytes left
[   46.197512] ip (2114) used greatest stack depth: 12272 bytes left
[   46.312470] netem: version 1.3
[  544.118031] tc (11908) used greatest stack depth: 11872 bytes left