[    1.915259] ip (268) used greatest stack depth: 12424 bytes left
[    2.001660] ip (277) used greatest stack depth: 12344 bytes left
[    2.166599] ip (295) used greatest stack depth: 12184 bytes left
[   73.694962] netem: version 1.3
[  613.635968] tc (24872) used greatest stack depth: 11880 bytes left