[    2.344812] ip (276) used greatest stack depth: 12344 bytes left
[   53.040905] netem: version 1.3
[  156.868352] ip (3250) used greatest stack depth: 12288 bytes left
[  278.487549] ip (4406) used greatest stack depth: 12064 bytes left
[  604.544176] tc (12830) used greatest stack depth: 11896 bytes left