[    2.015661] ip (252) used greatest stack depth: 12352 bytes left
[   54.943829] netem: version 1.3
[   73.894050] ip (2505) used greatest stack depth: 12296 bytes left
[  391.745697] ip (6437) used greatest stack depth: 12072 bytes left
[  605.487439] tc (12613) used greatest stack depth: 11936 bytes left