[    2.068335] ip (254) used greatest stack depth: 12344 bytes left
[   49.241980] netem: version 1.3
[  219.851688] ip (3867) used greatest stack depth: 12184 bytes left
[  485.765703] ip (9352) used greatest stack depth: 12040 bytes left
[  561.127284] tc (11927) used greatest stack depth: 11872 bytes left