[    2.128327] ip (284) used greatest stack depth: 12360 bytes left
[    2.219862] ip (294) used greatest stack depth: 12344 bytes left
[   58.496303] netem: version 1.3
[   68.345210] ip (2658) used greatest stack depth: 12032 bytes left
[  621.553707] tc (13804) used greatest stack depth: 11936 bytes left