[    1.922604] ip (250) used greatest stack depth: 12400 bytes left
[    2.383893] ip (280) used greatest stack depth: 12352 bytes left
[   18.441033] ip (1018) used greatest stack depth: 12200 bytes left
[   53.424773] netem: version 1.3
[  450.474390] ip (7396) used greatest stack depth: 12072 bytes left
[  607.271088] tc (11935) used greatest stack depth: 11936 bytes left