[    1.821189] ip (260) used greatest stack depth: 12344 bytes left
[    8.068852] ip (847) used greatest stack depth: 12296 bytes left
[   21.515975] ip (1134) used greatest stack depth: 12184 bytes left
[   48.566415] netem: version 1.3
[  576.671485] tc (11937) used greatest stack depth: 11872 bytes left