Re: [Discuss-gnuradio] benchmark_rx.py segmentation fault

[Henry Jin]

I remember I had the same issue before when testing the benchmark. What I did to avoid the crash is to start the tx first, and then the rx. It seems that you are doing it in reverse order, which is reasonable but not working according to my test. 

On Fri, May 1, 2015 at 10:51 AM, Richard Bell <address@hidden> wrote:

I forgot to mention that I also re-cloned pybombs before doing the update. So to be explicit, I deleted the target and pybombs directory. I then re-cloned pybombs and performed a new ./pybombs install gnuradio. This recognized I had all dependencies installed via rpm and only needed to remove and re-install uhd and gnuradio. It then did this.

As I mentioned, my custom radio flowgraph is working on this updated system.

v/r,

Rich

On Fri, May 1, 2015 at 10:46 AM, Richard Bell <address@hidden> wrote:

I use pybombs to update, which automatically updates UHD first and then GNU Radio.

Rich

On Fri, May 1, 2015 at 10:20 AM, Martin Braun <address@hidden> wrote:

Did you update GNU Radio *after* you updated UHD? If not, that's what
you should do.

http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#My-application-segfaults-immediately-It-used-to-work-and-I-didnt-change-it-What-the

M

On 30.04.2015 08:59, Richard Bell wrote:
> Hello,
>
> I'm using Ubuntu 14.04, gnuradio 3.7.8, USRP N210 and the latest UHD.
> Everything was recently (3 days ago) updated to newest versions and
> USRP's reflashed. I have custom flowgraphs that use the USRP N210's that
> work fine.
>
> I decided to play around with the benchmark_tx and benchmark_rx scripts
> to see what they could do, but I'm not able to receive anything because
> a segmentation fault crashes the benchmark_rx script as soon as I start
> the tx script. Even with the -v flag, I don't get any error output other
> then 'Segmentation fault (core dumped)'.
>
> Here is an example of the commands I use to start the scripts. I start
> the rx and then the tx.
>
> TX: *./benchmark_tx.py -v -f 1000000000 -r 800000 --args="addr=10.0.8.5"
> -A TX/RX --tx-gain=15*
>
> RX: *./benchmark_rx.py -v -f 1000000000 -r 800000 --args="addr=10.0.8.4"
> -A RX2 --rx-gain=15 *
>
> Am I doing something wrong on my end or is there a script issue?
>
> Thanks,
> Rich
>
>
>
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