[    2.038538] ip (262) used greatest stack depth: 12336 bytes left
[   39.982691] ip (1697) used greatest stack depth: 12192 bytes left
[   50.497000] netem: version 1.3
[  544.238411] ip (11264) used greatest stack depth: 12176 bytes left
[  567.616972] tc (11917) used greatest stack depth: 11832 bytes left