[    2.049142] ip (256) used greatest stack depth: 12392 bytes left
[    2.371894] ip (278) used greatest stack depth: 12360 bytes left
[    2.597595] ip (296) used greatest stack depth: 12344 bytes left
[   31.519187] ip (1298) used greatest stack depth: 12064 bytes left
[   54.595393] netem: version 1.3
[  618.856703] tc (12619) used greatest stack depth: 11936 bytes left