[    1.947216] ip (250) used greatest stack depth: 12400 bytes left
[    2.380289] ip (281) used greatest stack depth: 12368 bytes left
[   17.523853] ip (1035) used greatest stack depth: 12352 bytes left
[   51.886043] netem: version 1.3
[  510.284955] ip (9776) used greatest stack depth: 12040 bytes left