[    2.104708] ip (269) used greatest stack depth: 12360 bytes left
[    2.424315] ip (296) used greatest stack depth: 12344 bytes left
[    4.865126] ip (484) used greatest stack depth: 12160 bytes left
[   52.551848] netem: version 1.3
[  579.087416] tc (12830) used greatest stack depth: 11936 bytes left