[    1.821449] ip (254) used greatest stack depth: 12392 bytes left
[    2.148384] ip (276) used greatest stack depth: 12360 bytes left
[    3.680742] ip (392) used greatest stack depth: 12344 bytes left
[   57.207019] netem: version 1.3
[   68.074862] ip (2365) used greatest stack depth: 12304 bytes left
[  121.117806] ip (2770) used greatest stack depth: 12160 bytes left