[    1.311734] ip (217) used greatest stack depth: 12152 bytes left
[    3.671844] ip (864) used greatest stack depth: 12104 bytes left
[   16.853312] ip (1716) used greatest stack depth: 11944 bytes left
[   51.847515] netem: version 1.3
[  105.734399] ip (5221) used greatest stack depth: 11928 bytes left
[  505.495807] tc (20922) used greatest stack depth: 11704 bytes left