[    2.575959] ip (286) used greatest stack depth: 12360 bytes left
[    2.701906] ip (295) used greatest stack depth: 12344 bytes left
[   40.101530] ip (1549) used greatest stack depth: 12192 bytes left
[   54.833308] netem: version 1.3
[  609.241381] tc (12617) used greatest stack depth: 11896 bytes left