[    2.261907] ip (268) used greatest stack depth: 12584 bytes left
[    2.361450] ip (275) used greatest stack depth: 12472 bytes left
[    2.482140] ip (286) used greatest stack depth: 12344 bytes left
[   59.699948] netem: version 1.3
[  630.572029] tc (13802) used greatest stack depth: 11936 bytes left