[    1.811692] ip (281) used greatest stack depth: 12320 bytes left
[   45.528255] netem: version 1.3
[   61.335780] ip (2363) used greatest stack depth: 12272 bytes left
[  252.984953] ip (4163) used greatest stack depth: 12144 bytes left
[  540.043861] tc (11920) used greatest stack depth: 11872 bytes left