On Sat, Apr 7, 2012 at 7:07 PM, Alexandru Csete <oz9...@gmail.com> wrote: > On Sat, Apr 7, 2012 at 5:35 PM, Tom Rondeau <t...@trondeau.com> wrote: >> On Sat, Apr 7, 2012 at 10:19 AM, Alexandru Csete <oz9...@gmail.com> wrote: >>> On Sat, Apr 7, 2012 at 4:13 PM, Tom Rondeau <t...@trondeau.com> wrote: >>>> On Sat, Apr 7, 2012 at 9:48 AM, Alexandru Csete <oz9...@gmail.com> wrote: >>>>> Greetings, >>>>> >>>>> I'm getting segmentation faults in a C++ application when I restart >>>>> the flow graph, i.e by doing: >>>>> >>>>> tb->start() >>>>> ... >>>>> tb->stop() >>>>> tb->wait() >>>>> ... >>>>> tb->start() >>>>> (crashes) >>>>> >>>>> Running the application through a debugger suggests it is >>>>> volk_32f_s32f_multiply_32f_a_sse which is used by a gr_multiply_ff() >>>>> block. I end up with the attached assembly dump with a marker >>>>> highlighting line 19. >>>>> >>>>> I have attached a simple python flow graph, which also crashes for me. >>>>> Note that the python code was originally generated by GRC and it used >>>>> gr.multiply_const_vff which didn't crash. I manually changed it to >>>>> gr.multiply_const_ff to provoke the crash. >>>>> >>>>> This is happening on Ubuntu 11.04 64 bit and intel i7 processor. I'm >>>>> also seeing the message "Using Volk machine: sse4_2_64" when I start >>>>> the graph. GNU Radio is built using cmake. >>>>> >>>>> Alex >>>> >>>> What version of GNU Radio are you using? This sounds like a bug that >>>> was fixed a little while ago and is not a release version yet (will be >>>> in 3.5.3). >>>> >>> >>> Hi Tom, >>> >>> I pulled from origin/master earlier today. Git describe says >>> v3.5.2.1-103-gfaf1d33 >>> Is there another branch I can try? >>> >>> Alex >> >> >> Alex, >> >> Can you try applying the attached patch? It should work, but I've only >> tested it on one of my machines. This makes sure all buffers are >> aligned and all blocks know if after a start and restart. >> >> Thanks, >> Tom > > The patch fixed my problem. Thanks for the q
It was supposed to be "thanks for the quick fix" :) Alex _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
