[    1.993127] ip (278) used greatest stack depth: 12320 bytes left
[   33.332563] ip (1346) used greatest stack depth: 12176 bytes left
[   47.224657] netem: version 1.3
[  279.313426] ip (4411) used greatest stack depth: 12160 bytes left
[  550.761890] tc (11887) used greatest stack depth: 11872 bytes left