[    2.062274] ip (255) used greatest stack depth: 12392 bytes left
[    2.286003] ip (277) used greatest stack depth: 12344 bytes left
[    2.365997] ip (286) used greatest stack depth: 12328 bytes left
[    2.450634] ip (295) used greatest stack depth: 12168 bytes left
[   80.113899] netem: version 1.3
[  646.078003] tc (24872) used greatest stack depth: 11864 bytes left