[    1.636257] ip (250) used greatest stack depth: 12368 bytes left
[    1.874396] ip (271) used greatest stack depth: 12320 bytes left
[   47.294275] netem: version 1.3
[  563.591427] ip (12205) used greatest stack depth: 12272 bytes left
[  606.292217] ip (14464) used greatest stack depth: 12128 bytes left