[    1.616687] ip (250) used greatest stack depth: 12368 bytes left
[    1.672338] ip (255) used greatest stack depth: 12320 bytes left
[   45.201972] netem: version 1.3
[  486.669195] ip (10714) used greatest stack depth: 12160 bytes left
[  541.727790] tc (11910) used greatest stack depth: 11872 bytes left