On Tue, Dec 20, 2011 at 5:11 AM, Sebastian Döring <sdoer...@rhrk.uni-kl.de> wrote: >> ------------------------------------------------------------------------------------------------------ >> #0 0x0013a455 in sem_post@@GLIBC_2.1 () from >> /lib/tls/i686/cmov/libpthread.so.0 >> #1 0x0810ab61 in PyThread_release_lock (lock=0x0) at >> ../Python/thread_pthread.h:374 >> #2 0x080dbad3 in PyEval_ReleaseLock () at ../Python/ceval.c:262 >> #3 0x00fa6073 in gr_py_feval_dd::calleval(double) ()
This is likely a similar issue with the Python GIL (global interpreter lock) that occurred previously on the E100. In that case the final cause was a missing ctypes library. http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/2011-June/001479.html To find out, try this thread hack. The patch is old, so you will probably need to apply manually against the current master. diff --git a/uhd_spectrum_sense_sum.py b/uhd_spectrum_sense_sum.py index 70f530f..31bf458 100644 --- a/uhd_spectrum_sense_sum.py +++ b/uhd_spectrum_sense_sum.py @@ -32,7 +32,11 @@ import sys import math import struct import time +import threading +class ThreadClass(threading.Thread): + def run(self): + return class tune(gr.feval_dd): """ @@ -306,6 +310,9 @@ def main_loop(tb): if __name__ == '__main__': + t = ThreadClass() + t.start() + tb = my_top_block() try: tb.start() # start executing flow graph in another thread... Thomas _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
