[    1.776411] ip (248) used greatest stack depth: 12912 bytes left
[    1.873314] ip (254) used greatest stack depth: 12392 bytes left
[    1.969282] ip (260) used greatest stack depth: 12344 bytes left
[   49.149806] netem: version 1.3
[  583.130241] tc (11912) used greatest stack depth: 11872 bytes left