[    2.487067] ip (286) used greatest stack depth: 12360 bytes left
[    2.600910] ip (295) used greatest stack depth: 12344 bytes left
[   11.459437] ip (976) used greatest stack depth: 12064 bytes left
[   53.792165] netem: version 1.3
[  619.175219] tc (12618) used greatest stack depth: 11936 bytes left