[    1.920393] ip (254) used greatest stack depth: 12368 bytes left
[    2.123067] ip (271) used greatest stack depth: 12320 bytes left
[    3.495539] ip (384) used greatest stack depth: 12272 bytes left
[   46.725441] netem: version 1.3
[  117.975754] ip (2740) used greatest stack depth: 12160 bytes left
[  557.096036] tc (11912) used greatest stack depth: 11872 bytes left