[    1.904345] ip (259) used greatest stack depth: 12392 bytes left
[    2.199221] ip (278) used greatest stack depth: 12344 bytes left
[   54.659296] netem: version 1.3
[   63.900597] ip (2382) used greatest stack depth: 12192 bytes left
[  606.568878] tc (12618) used greatest stack depth: 11936 bytes left