[    1.891202] ip (256) used greatest stack depth: 12392 bytes left
[    2.204566] ip (278) used greatest stack depth: 12360 bytes left
[    3.673858] ip (393) used greatest stack depth: 12344 bytes left
[   53.794820] netem: version 1.3
[  393.323708] ip (5948) used greatest stack depth: 12064 bytes left