File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/__init__.py", line 116, in constructor_interceptor
return old_constructor(*args) File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py", line 2895, in usrp_sink
return _uhd_swig.usrp_sink(*args)
RuntimeError: RuntimeError: fifo ctrl timed out looking for acks
It's coming multiple times.