[    1.957131] ip (247) used greatest stack depth: 12624 bytes left
[    2.042840] ip (252) used greatest stack depth: 12336 bytes left
[   53.658809] netem: version 1.3
[  142.668973] ip (3057) used greatest stack depth: 12176 bytes left
[  557.934453] tc (11915) used greatest stack depth: 11872 bytes left