Re: [Discuss-gnuradio] uhd_fft seg fault

[Daniel R. Marlow]

On Mar 23, 2016, at 8:53 PM, Marcus D. Leech wrote:

> On 03/23/2016 07:46 PM, Daniel R. Marlow wrote:
>> Hello,
>> 
>>   H/W:  Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz
>>    USRP:  Ettus B210
>>     OS:  Ubuntu 15.04
>> gnuradio:  3.7.5
>> 
>>    The most recent step was to do a simple binary install of uhd-host and 
>> gnradio using
>> 
>>   > sudo apt-get install uhd-host
>>   > sudo apt-get install gnuradio
>> 
>>    All seemed to work OK.
>>    > uhd_usrp_probe
>>    works as expected (displays info about B210)
>> 
>>    However, when I try to run
>>     > uhd_fft -f 1420M
>>     the program seg fautls.
>>         The same is true when I try
>>     > gnuradio-companion
>>     and also
>>     > python top_block_ex.py
>>      where top_block_ex.py is a known-to-work module from another project.
>> 
>>    See the screen dump below.   I don't believe it's a windows issue, since 
>> other apps open windows without problems.     Full disclosure:  installation 
>> of the binaries was preceded with a PyBOMBS installation (which seemed to go 
>> OK, except that uhd_usrp_probe was not found)
>> 
>>    Any suggestions would be most appreciated.   (Sorry if this is hopelessly 
>> naive.)
>> 
>> --Dan Marlow
> Could you try a simple "sudo ldconfig" after doing those apt-based installs? 
> Does that fix the issue?
> 
> 
Thanks Marcus.

I did a "sudo ldconfig" but to no avail.

I am wondering if the problem is destructive interference between the apt-get 
install of the binaries
and my attempt to install using PyBOMBS?   If so, is there anything I should do 
to get rid of the PyBOMBS
other than an "rm" of the installation directories?

--Dan

>> 
>> 
>> address@hidden:~/21cm$ uhd_fft -1420M
>> Segmentation fault (core dumped)
>> address@hidden:~/21cm$ gnuradio-companion
>> Segmentation fault (core dumped)
>> address@hidden:~/21cm$ python top_block_ex.py
>> Segmentation fault (core dumped)
>> address@hidden:~/21cm$
>> 
>> 
>> 
>> 
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