[    1.692675] ip (253) used greatest stack depth: 12368 bytes left
[    1.931145] ip (278) used greatest stack depth: 12320 bytes left
[    6.916418] ip (751) used greatest stack depth: 12272 bytes left
[   45.824712] netem: version 1.3
[  176.561259] ip (3564) used greatest stack depth: 12144 bytes left
[  527.702870] tc (11909) used greatest stack depth: 11872 bytes left