Hey,

I know another GSoC Student has problems with the a GT GUI sink as well. It would randomly SEGFAULT in a volk multiply kernel. I think it is the volk_32_fc_32f_multiply_32fc kernel used in waterfall_sink_X_impl::fft(). This kernel takes the FFT size as an input argument, so it could be related to your problem. I just had a quick glance at it so I am not sure though. I'll ask him to post his exact problem when he arrives at the lab. Maybe he can shed a bit more light on this problem

-Jan


On 04.06.2014 01:43, Alfredo Muniz wrote:

On Tue, Jun 3, 2014 at 4:35 PM, Marcus Müller <mar...@hostalia.de <mailto:mar...@hostalia.de>> wrote:

    I hope someone more familiar with the qtgui infrastructure might
    chime in.


Hey Marcus,

Did you try debugging the SEGFAULT using gdb? This is a good reference to try:
http://www.unknownroad.com/rtfm/gdbtut/gdbsegfault.html


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