[    1.653085] ip (253) used greatest stack depth: 12368 bytes left
[    1.823758] ip (269) used greatest stack depth: 12320 bytes left
[    7.920794] ip (839) used greatest stack depth: 12160 bytes left
[   46.197452] netem: version 1.3
[  560.188529] tc (11909) used greatest stack depth: 11872 bytes left