[    1.730276] ip (248) used greatest stack depth: 12368 bytes left
[    2.089159] ip (278) used greatest stack depth: 12320 bytes left
[   47.028555] netem: version 1.3
[   54.568169] ip (2253) used greatest stack depth: 12272 bytes left
[   63.085402] ip (2372) used greatest stack depth: 12224 bytes left
[  456.449783] ip (8910) used greatest stack depth: 12128 bytes left