[    2.036337] ip (249) used greatest stack depth: 12368 bytes left
[    2.356888] ip (271) used greatest stack depth: 12320 bytes left
[   17.866675] ip (1037) used greatest stack depth: 12272 bytes left
[   52.219005] netem: version 1.3
[  599.121297] tc (11937) used greatest stack depth: 11872 bytes left