[    2.451273] ip (282) used greatest stack depth: 12352 bytes left
[    2.570064] ip (291) used greatest stack depth: 12336 bytes left
[   56.563207] netem: version 1.3
[  506.607445] ip (8787) used greatest stack depth: 12056 bytes left
[  599.836950] tc (11952) used greatest stack depth: 11920 bytes left