[    1.956357] ip (257) used greatest stack depth: 12624 bytes left
[    2.070458] ip (264) used greatest stack depth: 12608 bytes left
[    2.178782] ip (273) used greatest stack depth: 12368 bytes left
[    2.384264] ip (291) used greatest stack depth: 12352 bytes left
[   53.733601] netem: version 1.3
[   88.940978] ip (2490) used greatest stack depth: 12200 bytes left
[  595.615829] tc (11924) used greatest stack depth: 11936 bytes left