[    1.804014] ip (259) used greatest stack depth: 12392 bytes left
[    2.131933] ip (288) used greatest stack depth: 12360 bytes left
[    2.217417] ip (297) used greatest stack depth: 12344 bytes left
[   39.060331] ip (1677) used greatest stack depth: 12192 bytes left
[   52.786035] netem: version 1.3