[    2.061328] ip (254) used greatest stack depth: 12456 bytes left
[    2.097447] ip (257) used greatest stack depth: 12392 bytes left
[    2.400824] ip (276) used greatest stack depth: 12360 bytes left
[    7.403741] ip (616) used greatest stack depth: 12344 bytes left
[   39.987363] ip (1548) used greatest stack depth: 12304 bytes left
[   57.634551] netem: version 1.3
[   67.773164] ip (2678) used greatest stack depth: 12192 bytes left
[  621.664391] tc (13804) used greatest stack depth: 11936 bytes left