[    1.950453] ip (253) used greatest stack depth: 12400 bytes left
[    2.374538] ip (281) used greatest stack depth: 12352 bytes left
[    6.513883] ip (588) used greatest stack depth: 12296 bytes left
[   55.328330] netem: version 1.3
[   72.528921] ip (2506) used greatest stack depth: 12168 bytes left
[  596.982885] tc (12614) used greatest stack depth: 11936 bytes left