[    1.719898] ip (247) used greatest stack depth: 12392 bytes left
[    1.897347] ip (259) used greatest stack depth: 12344 bytes left
[   16.989652] ip (1031) used greatest stack depth: 12296 bytes left
[   50.848123] netem: version 1.3
[  317.432387] ip (5333) used greatest stack depth: 12072 bytes left