[    1.625374] ip (249) used greatest stack depth: 12368 bytes left
[    1.909070] ip (279) used greatest stack depth: 12320 bytes left
[    2.891236] ip (378) used greatest stack depth: 12048 bytes left
[   46.300537] netem: version 1.3
[  234.230464] ip (4002) used greatest stack depth: 12032 bytes left