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Re: [Discuss-gnuradio] FPE with FM Rcvr


From: Josh Blum
Subject: Re: [Discuss-gnuradio] FPE with FM Rcvr
Date: Wed, 30 Mar 2011 22:25:42 -0700
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110223 Lightning/1.0b2 Thunderbird/3.1.8


On 03/30/2011 09:31 PM, Ron Hall wrote:
> 
> Working the following issue...any ideas?
> 
> System: Ubuntu 10.10, Gnuradio 3.3.0, uhd (Mar 2011), USRP2, TVRX
> 
> Using the attached grc model results in a floating point exception:
> 
> 

(process of elimination)

it looks like its coming from the xlating filter


> It might be a memory issue. An attempt to sample at the 6Mz limit
> with the TVRX (board responds with ~5.88...) results in
> gr_buffer:allocate_buffer: failed to allocate buffer of size 18760,
> which points to an installation issue that make check should have
> handled...a reinstall and closer scrutiny of the output should
> highlight any neglected warnings/errors.
> 
> 

failed to allocate is an issue introduced by a block that changed that
is used in the fft sink (tom?)

-Josh



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