[    2.471180] ip (280) used greatest stack depth: 12320 bytes left
[    4.961195] ip (455) used greatest stack depth: 12160 bytes left
[   54.325051] netem: version 1.3
[  193.466366] ip (3571) used greatest stack depth: 12128 bytes left
[  577.939434] tc (11926) used greatest stack depth: 11872 bytes left