Re: [Discuss-gnuradio] Troubles, I got troubles

[Eric Blossom]

On Sun, Jun 19, 2005 at 12:26:39PM -0400, Marcus D. Leech wrote:
> I pulled the CVS files from yesterday, and build gnuradio, with alsa, oss, and
> usrp support.
> 
> In trying to run any of the USRP examples that use an FFT, I get a seg fault. 
> Using
>   GDB, the stack backtrace points at a function called m2fv_64_0 as being 
> active
> when
>   the segfault is asserted, in libgnuradio-core.so.0
> 
> I'm running with wxPython 2.6.1.0, python2.3, on an FC3 system.
> 
> Other USRP examples seem to work OK, like usrp_oscope.

Hi Marcus,

In the past we've seen some core dumps from FFTW.  I don't recall
exactly what the conditions were, but it seemed to depend on the
compiler version.

You might want to try building FFTW from source using the

 ./configure --enable-single --enable-shared

options.  Your problem may have something to do with --enable-sse and/or
changes in compilers, etc.

Eric