[    1.860796] iptables (239) used greatest stack depth: 12848 bytes left
[    2.086186] ip (257) used greatest stack depth: 12392 bytes left
[    2.307044] ip (267) used greatest stack depth: 12192 bytes left
[   56.783465] netem: version 1.3
[  530.852482] ip (11600) used greatest stack depth: 12160 bytes left