[    1.959252] ip (261) used greatest stack depth: 12336 bytes left
[   50.285323] netem: version 1.3
[   68.477296] ip (2344) used greatest stack depth: 12192 bytes left
[  417.591888] ip (7360) used greatest stack depth: 12144 bytes left
[  566.054288] tc (11919) used greatest stack depth: 11872 bytes left