[    2.008873] ip (254) used greatest stack depth: 12336 bytes left
[    6.263993] ip (573) used greatest stack depth: 12232 bytes left
[   52.188207] netem: version 1.3
[  434.858517] ip (7492) used greatest stack depth: 12192 bytes left
[  576.773607] tc (11929) used greatest stack depth: 11872 bytes left