[    1.828735] ip (251) used greatest stack depth: 12392 bytes left
[    2.212257] ip (281) used greatest stack depth: 12352 bytes left
[    2.310604] ip (290) used greatest stack depth: 12344 bytes left
[   51.548626] netem: version 1.3
[   91.338399] ip (2588) used greatest stack depth: 12296 bytes left
[  580.303882] tc (11934) used greatest stack depth: 11936 bytes left