[    1.940513] iptables (238) used greatest stack depth: 12864 bytes left
[    2.119902] ip (253) used greatest stack depth: 12392 bytes left
[    2.591083] ip (284) used greatest stack depth: 12344 bytes left
[   53.940089] netem: version 1.3
[  562.721132] ip (11689) used greatest stack depth: 12240 bytes left