[    1.429973] ip (229) used greatest stack depth: 11944 bytes left
[    1.503781] ip (257) used greatest stack depth: 11896 bytes left
[   52.118912] netem: version 1.3
[   61.485892] ip (4458) used greatest stack depth: 11872 bytes left
[  529.413538] tc (20913) used greatest stack depth: 11704 bytes left