Denys wrote:

Possible i discovered bug, but maybe specific to my setup. 

In your sources (tc/tc_core.h) i notice 
#define TIME_UNITS_PER_SEC    1000000000 
When i change it to 
#define TIME_UNITS_PER_SEC      1000000.0 
(it was value before in sources) 
everythign works fine. Otherwise tbf not working at all, it is dropping all 
packets.

Did anyone test new iproute2 with tbf?

Yes, please send the commands you use.