[    1.598914] ip (255) used greatest stack depth: 12152 bytes left
[   18.727965] ip (1863) used greatest stack depth: 12088 bytes left
[   78.477051] netem: version 1.3
[   85.472545] ip (5565) used greatest stack depth: 11912 bytes left
[  644.125764] tc (26301) used greatest stack depth: 11864 bytes left