[    1.683117] ip (248) used greatest stack depth: 12608 bytes left
[    1.919662] ip (269) used greatest stack depth: 12512 bytes left
[    2.002082] ip (278) used greatest stack depth: 12320 bytes left
[    4.835552] ip (547) used greatest stack depth: 12160 bytes left
[   48.633396] netem: version 1.3
[  565.664541] tc (11912) used greatest stack depth: 11872 bytes left