[    2.422527] ip (276) used greatest stack depth: 12360 bytes left
[    2.661668] ip (294) used greatest stack depth: 12344 bytes left
[   56.255873] netem: version 1.3
[   64.331981] ip (2373) used greatest stack depth: 12032 bytes left
[  594.186701] tc (12617) used greatest stack depth: 11936 bytes left