[    1.832701] ip (249) used greatest stack depth: 12608 bytes left
[    1.903155] ip (254) used greatest stack depth: 12368 bytes left
[    2.007918] ip (261) used greatest stack depth: 12320 bytes left
[   49.250217] netem: version 1.3
[  501.565949] ip (10931) used greatest stack depth: 12272 bytes left