[    2.133945] ip (279) used greatest stack depth: 12320 bytes left
[    3.108263] ip (360) used greatest stack depth: 12192 bytes left
[   28.400362] ip (1204) used greatest stack depth: 12160 bytes left
[   48.801375] netem: version 1.3
[  547.160523] tc (11915) used greatest stack depth: 11872 bytes left