[    1.856853] ip (247) used greatest stack depth: 12368 bytes left
[    1.914110] ip (252) used greatest stack depth: 12320 bytes left
[    3.078809] ip (369) used greatest stack depth: 12272 bytes left
[    8.911896] ip (930) used greatest stack depth: 12160 bytes left
[   46.332483] netem: version 1.3
[  534.276886] tc (11915) used greatest stack depth: 11872 bytes left