Re: [Discuss-gnuradio] gr-bluetooth

[Martin Braun]

On 07/10/2014 12:05 AM, Orin Lincoln wrote:
> I have encountered a segmentation fault issue in the
> gr::bluetooth::multi_block code (which all the other gr-bluetooth blocks
> use) that did not appear while running the included QA code (though I'm
> not sure how reliable the test code was). I've spent the past couple
> days trying to track down with GDB what exactly is going wrong, so that
> I can fix it (the code looks fine to me, nothing is standing out as a
> big issue). From what I've gathered so far, it appears the issue is with
> "gr_vector_void_star& out", an input to multi_block::channel_samples().
> I don't have a lot of experience with debugging, so if anyone has any
> suggestions about what to look for when tracking down segmentation
> faults (my understanding is that
> memory is being accessed which should not be accessed by the process), I
> would appreciate them.

If you build GNU Radio with debug symbols and follow the instructions on
http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsDebugging,
you can figure out exactly where the segfault is happening; that'll help
you fix the problem.

M