[    1.387738] ip (223) used greatest stack depth: 12216 bytes left
[    1.506708] ip (258) used greatest stack depth: 12168 bytes left
[    5.345642] ip (1214) used greatest stack depth: 11976 bytes left
[   51.449322] ip (4116) used greatest stack depth: 11904 bytes left
[   52.170601] netem: version 1.3
[   61.248986] ip (4484) used greatest stack depth: 11896 bytes left
[  520.073027] tc (20918) used greatest stack depth: 11704 bytes left