I once had an OpenGL issue mess with uhd_fft. If you run 'glxgears' from a terminal does it work and do you get a normal frame rate (30+ fps, I get up to 60). My fix was installing proper video card drivers. Just a thought.
Rich Sent from my iPhone > On Feb 16, 2015, at 12:48 PM, Ergeerts Glenn <glenn.ergee...@uantwerpen.be> > wrote: > > yes i did, "pybombs list" shows this: > > gnuradio installed inventory > fc7861ac029a4297df5a0b1159cb07f922670054 > git://http://www.gnuradio.org/git/gnuradio.git > uhd installed inventory > 7d97ab60012b99ed92fb122a3a68d68515a404fa > git://https://github.com/EttusResearch/uhd.git > > >> On 02/16/2015 09:39 PM, Martin Braun wrote: >> Those swig traces are hard to parse, but you might have to rebuild GNU >> Radio against the current UHD build. Did you install both via Pybombs? >> >> M >> >>> On 02/16/2015 09:09 PM, Ergeerts Glenn wrote: >>> Hi, >>> >>> I'm new to SDR and gnuradio and trying to get started with an USRP B200 >>> and gnuradio on ubuntu 14.04. >>> I'm using pybombs (up-to-date) for building. Building succeeds but i get >>> a segfault when running uhd_fft. >>> The backtrace is below. >>> >>> I checked if the correct libuhd was being used (with ldd),instead of an >>> old version from an ubuntu package. >>> I also tried uhd_find_devices (which uses pure uhd if i'm correct, >>> without gnuradio?), this works fine. >>> Running "pybombs verify gnuradio" results in: >>> The following tests FAILED: >>> 183 - qa_uhd (Failed) >>> 192 - qa_fcd (Failed) >>> Errors while running CT >>> >>> Running gnuradio/gr-uhd/python/uhd/qa_uhd.py in gdb segfaults with a >>> similar backtrace as well. >>> Finally, i tried changing the gnuradio recipe to use the maint branch >>> instead of master. >>> Rebuilding (after cleaning the build dir) results in the same situation >>> however. >>> >>> I don't know where to look next. Did anyone experience the same problem? >>> Thanks for any pointers! >>> >>> >>> (gdb) bt >>> #0 0x000000000001e626 in ?? () >>> #1 0x00007ffff079d3a0 in strstr (__needle=0x7ffff082bfca "swig_ptr: ", >>> __haystack=0xd9398 <error: Cannot access memory at address 0xd9398>) at >>> /usr/include/string.h:337 >>> #2 SWIG_Python_FixMethods (methods=0x7ffff0a57380 <SwigMethods>, >>> const_table=0x7ffff0a5d920 <swig_const_table>, types=0x7ffff0a5d980 >>> <swig_types>, >>> types_initial=0x7ffff0a55a20 <swig_type_initial>) at >>> /home/glenn/projects/pybombs/src/gnuradio/build/gr-uhd/swig/uhd_swigPYTHON_wrap.cxx:47200 >>> #3 init_uhd_swig () at >>> /home/glenn/projects/pybombs/src/gnuradio/build/gr-uhd/swig/uhd_swigPYTHON_wrap.cxx:47321 >>> #4 0x00000000004268bc in _PyImport_LoadDynamicModule >>> (name=0x7ffff1cccd74 "_uhd_swig", >>> pathname=0x7fffed3fa48c >>> "/home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/_uhd_swig.so", >>> fp=<optimized out>) at ../Python/importdl.c:53 >>> #5 0x00000000005b75d1 in load_module.39237 (name=<optimized out>, >>> fp=<optimized out>, pathname=<optimized out>, type=<optimized out>, >>> loader=loader@entry=0x0) >>> at ../Python/import.c:1915 >>> #6 0x000000000046232a in imp_load_module.39244 (self=<optimized out>, >>> args=<optimized out>) at ../Python/import.c:3182 >>> #7 0x000000000052c6d5 in call_function (oparg=<optimized out>, >>> pp_stack=0x7fffffffc170) at ../Python/ceval.c:4020 >>> #8 PyEval_EvalFrameEx (f=f@entry= >>> Frame 0x7ffff2182a50, for file >>> /home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py, >>> line 24, in swig_import_helper (dirname=<function at remote >>> 0x7ffff7f0f578>, imp=<module at remote 0x7ffff6b519f0>, fp=<file at >>> remote 0x7ffff0aa1f60>, >>> pathname='/home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/_uhd_swig.so', >>> description=('.so', 'rb', 3)), throwflag=throwflag@entry=0) at >>> ../Python/ceval.c:2666 >>> #9 0x000000000052cf32 in fast_function (nk=<optimized out>, >>> na=<optimized out>, n=0, pp_stack=0x7fffffffc2b0, func=<function at >>> remote 0x7fffed3fa398>) >>> at ../Python/ceval.c:4106 >>> #10 call_function (oparg=<optimized out>, pp_stack=0x7fffffffc2b0) at >>> ../Python/ceval.c:4041 >>> #11 PyEval_EvalFrameEx (f=f@entry=Frame 0x7ffff1c73b00, for file >>> /home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py, >>> line 28, in <module> (), >>> throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 >>> #12 0x000000000055c594 in PyEval_EvalCodeEx (co=0x7fffed40a9b0, >>> globals=<optimized out>, locals=<optimized out>, args=<optimized out>, >>> argcount=<optimized out>, >>> kws=<optimized out>, kwcount=0, defs=0x0, defcount=0, closure=0x0) >>> at ../Python/ceval.c:3252 >>> #13 0x00000000005b7392 in PyEval_EvalCode (co=<optimized out>, >>> globals=<optimized out>, locals=<optimized out>) at ../Python/ceval.c:667 >>> #14 0x00000000005b744a in PyImport_ExecCodeModuleEx >>> (name=name@entry=0xdf9060 "gnuradio.uhd.uhd_swig", co=co@entry=<code at >>> remote 0x7fffed40a9b0>, >>> pathname=pathname@entry=0xa0f170 >>> "/home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.pyc") >>> at ../Python/import.c:709 >>> #15 0x0000000000579f0f in load_source_module.39194 >>> (name=name@entry=0xdf9060 "gnuradio.uhd.uhd_swig", >>> pathname=0xa0f170 >>> "/home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.pyc", >>> >>> pathname@entry=0xa72300 >>> "/home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py", >>> fp=<optimized out>) at ../Python/import.c:1099 >>> #16 0x00000000005b7541 in load_module.39237 (name=name@entry=0xdf9060 >>> "gnuradio.uhd.uhd_swig", fp=<optimized out>, >>> pathname=pathname@entry=0xa72300 >>> "/home/glenn/bin/gnuradio/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py", >>> type=<optimized out>, loader=<optimized out>) >>> at ../Python/import.c:1906 >>> #17 0x000000000055d3a3 in import_submodule.39248 (mod=mod@entry=<module >>> at remote 0x7ffff1c8aa98>, subname=subname@entry=0xdf906d "uhd_swig", >>> fullname=0xdf9060 "gnuradio.uhd.uhd_swig") at ../Python/import.c:2700 >>> #18 0x000000000055d77c in load_next (mod=<module at remote >>> 0x7ffff1c8aa98>, altmod=None, p_name=p_name@entry=0x7fffffffc650, >>> buf=buf@entry=0xdf9060 "gnuradio.uhd.uhd_swig", >>> p_buflen=p_buflen@entry=0x7fffffffc660) at ../Python/import.c:2515 >>> #19 0x000000000055db37 in import_module_level.isra.3 (level=-1, >>> fromlist=None, globals=<optimized out>, name=0x0) at ../Python/import.c:2224 >>> #20 PyImport_ImportModuleLevel (name=<optimized out>, globals=<optimized >>> out>, locals=<optimized out>, fromlist=None, level=-1) at >>> ../Python/import.c:2288 >>> #21 0x00000000004755e7 in builtin___import__.32997 (self=<optimized >>> out>, args=<optimized out>, kwds=<optimized out>) at >>> ../Python/bltinmodule.c:49 >>> #22 0x00000000004da20b in PyObject_Call (kw=0x0, >>> arg=('uhd_swig', {'_prepare_uhd_swig': <function at remote >>> 0x7ffff0adf2a8>, '__builtins__': {'bytearray': <type at remote >>> 0x9166a0>, 'IndexError': <type at remote 0x919900>, 'all': <built-in >>> function all>, 'help': <_Helper at remote 0x7ffff7e7d290>, 'vars': >>> <built-in function vars>, 'SyntaxError': <type at remote 0x91b9e0>, >>> 'unicode': <type at remote 0x91dc80>, 'UnicodeDecodeError': <type at >>> remote 0x91a920>, 'memoryview': <type at remote 0x90dae0>, 'isinstance': >>> <built-in function isinstance>, 'copyright': >>> <_Printer(_Printer__data='Copyright (c) 2001-2014 Python Software >>> Foundation.\nAll Rights Reserved.\n\nCopyright (c) 2000 BeOpen.com.\nAll >>> Rights Reserved.\n\nCopyright (c) 1995-2001 Corporation for National >>> Research Initiatives.\nAll Rights Reserved.\n\nCopyright (c) 1991-1995 >>> Stichting Mathematisch Centrum, Amsterdam.\nAll Rights Reserved.', >>> _Printer__lines=None, _Printer__name='copyright', _Printer__dirs=(), >>> _Printer__files=(...)) at remote 0x7ffff7e7d590>, 'NameError': <type at >>> remote 0x91bd20>, 'BytesWarn...(truncated), func=<built-in function >>> __import__>) at ../Objects/abstract.c:2529 >>> #23 PyEval_CallObjectWithKeywords (func=func@entry=<built-in function >>> __import__>, >>> arg=arg@entry=('uhd_swig', {'_prepare_uhd_swig': <function at >>> remote 0x7ffff0adf2a8>, '__builtins__': {'bytearray': <type at remote >>> 0x9166a0>, 'IndexError': <type at remote 0x919900>, 'all': <built-in >>> function all>, 'help': <_Helper at remote 0x7ffff7e7d290>, 'vars': >>> <built-in function vars>, 'SyntaxError': <type at remote 0x91b9e0>, >>> 'unicode': <type at remote 0x91dc80>, 'UnicodeDecodeError': <type at >>> remote 0x91a920>, 'memoryview': <type at remote 0x90dae0>, 'isinstance': >>> <built-in function isinstance>, 'copyright': >>> <_Printer(_Printer__data='Copyright (c) 2001-2014 Python Software >>> Foundation.\nAll Rights Reserved.\n\nCopyright (c) 2000 BeOpen.com.\nAll >>> Rights Reserved.\n\nCopyright (c) 1995-2001 Corporation for National >>> Research Initiatives.\nAll Rights Reserved.\n\nCopyright (c) 1991-1995 >>> Stichting Mathematisch Centrum, Amsterdam.\nAll Rights Reserved.', >>> _Printer__lines=None, _Printer__name='copyright', _Printer__dirs=(), >>> _Printer__files=(...)) at remote 0x7ffff7e7d590>, 'NameError': <type at >>> remote >>> >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
