[    1.977193] ip (255) used greatest stack depth: 12320 bytes left
[   48.258094] netem: version 1.3
[   55.215986] ip (2251) used greatest stack depth: 12272 bytes left
[  233.148179] ip (4033) used greatest stack depth: 12128 bytes left
[  542.079590] tc (11924) used greatest stack depth: 11872 bytes left