[    2.177754] ip (255) used greatest stack depth: 12632 bytes left
[    2.212659] ip (258) used greatest stack depth: 12392 bytes left
[    2.522328] ip (277) used greatest stack depth: 12360 bytes left
[    4.075905] ip (392) used greatest stack depth: 12344 bytes left
[   53.126965] netem: version 1.3
[   70.104196] ip (2511) used greatest stack depth: 12304 bytes left
[  589.671935] tc (12619) used greatest stack depth: 11936 bytes left