[    1.817235] ip (255) used greatest stack depth: 12392 bytes left
[    2.178003] ip (286) used greatest stack depth: 12360 bytes left
[    2.274324] ip (295) used greatest stack depth: 12344 bytes left
[    7.131151] ip (693) used greatest stack depth: 12288 bytes left
[   36.145680] ip (1432) used greatest stack depth: 12064 bytes left
[   52.852557] netem: version 1.3
[  591.780112] tc (12617) used greatest stack depth: 11936 bytes left