[    2.424074] ip (287) used greatest stack depth: 12360 bytes left
[    3.857011] ip (393) used greatest stack depth: 12344 bytes left
[   53.732071] netem: version 1.3
[   73.778139] ip (2499) used greatest stack depth: 12160 bytes left
[  617.265835] tc (12829) used greatest stack depth: 11936 bytes left