2012/4/12 Alick Zhao <alick9...@gmail.com>: > Hi all, > > Recently I have upgraded my gnuradio build to v3.5.3 on several > computers, and I find that on two machines with Ubuntu 11.10, make test > will fail the test qa_constellation_receiver while on the other two with > Fedora 16 all tests are passed. > > To investigate the problem, I add one line in the file > `gr-digital/python/qa_constellation_receiver.py` which just print the > value of constellation, differential, and correct before the assert. > Then I run the script > `build/gr-digital/python/qa_constellation_receiver_test.sh`. The output > is recorded and attached below. Among them: > > * test.t41.log is from a Thinkpad T41 with Ubuntu 11.10 32bit installed, > * test.t60.log is from a Thinkpad T60 with Ubuntu 11.10 32bit installed, > * test.f16.log is from a HP 6531s with Fedora 16 x86_64 installed. > > Hope these logs are helpful to diagnose the problem. > > PS: As a side note, my debugging line's output appears later than the > result, which is not the case for screen output. I think this is > probably related to stdout buffering. > > PS2: I once changed the REQ_CORRECT to 0.7 on one Ubuntu machine, > and then made the test passed. I wonder if it is a valid fix. > > alick > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
It sounds like this is definitely a bug, but it's hard for me to track it down because I can't replicate it. Does the bug still occur if you set FREQUENCY_OFFSET = 0 in the test case? _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
