[    2.188998] ip (257) used greatest stack depth: 12392 bytes left
[    2.436996] ip (273) used greatest stack depth: 12360 bytes left
[    2.667193] ip (291) used greatest stack depth: 12352 bytes left
[    9.389866] ip (758) used greatest stack depth: 12344 bytes left
[   54.461899] netem: version 1.3
[  586.812000] tc (11923) used greatest stack depth: 11936 bytes left