[    2.676405] ip (297) used greatest stack depth: 12360 bytes left
[    5.197433] ip (494) used greatest stack depth: 12344 bytes left
[    9.603336] ip (795) used greatest stack depth: 12192 bytes left
[   53.820177] netem: version 1.3
[  394.973236] ip (7078) used greatest stack depth: 12064 bytes left