[    1.961010] ip (245) used greatest stack depth: 12392 bytes left
[    2.173774] ip (257) used greatest stack depth: 12344 bytes left
[   47.072871] ip (1987) used greatest stack depth: 12184 bytes left
[   54.120196] netem: version 1.3
[  552.862591] tc (11930) used greatest stack depth: 11832 bytes left