Re: [Discuss-gnuradio] problem with gri_fftw

[Eric Blossom]

On Wed, Feb 28, 2007 at 11:30:52AM -0800, John Clark wrote:
> I am setting up a 'embedded' gnuradio application, and have run across 
> the following diagnostic
> message.
> 
> gri_fftw: Bad address
> gr_vmcircbuf_createfilemapping: createfilemapping is not available
> (null)/.gnuradio/prefs/gr_vmcircbuf_default_factory: No such file or 
> directory
> 
> I've noticed simular sorts of messages when I have my root disk 'read 
> only', etc.
> 
> But this one seems to cause the fft to stop processing.
> 
> What is this prefs item, and how do I set it up correctly in a embedded
> environment, and use an http server to initiate the gnuradio application 
> (which
> is probably why there is a '(null)' in front of the directory for the 
> prefs, as
> there may be no assigned directory for the http 'user' being used to 
> initiate
> the application.)

Try setting the HOME environment variable such that it points at a
writable directory. 

Eric