Hi Vasil & Phillipp,

I just un- and reinstalled gnuradio from source (basically following the steps 
at the wiki)... that did not solve the problem.

Im on version 3.10.4.0 and im on Ubuntu 20.04.


@Phillipp you were right, gnuradio does not crash if I open another flowgraph. 
The import I was originally aiming to do works now.



And i found when gnuradio segfaults: it happens when I add a variable block with

"mymodule.phy_header().formatter()"

(maybe that additional info is useful)

@Vasil I did install the debug symbols, but when I do the command,
it still shows

Reading symbols from python...
(No debugging symbols found in python)
And the rest of the output is still the same...so I dont know what wrong here. 
That indicates that the installation of the debug symbols went wrong?

Thank you very much for your help so far, I would be very thankful for any 
further help 😊

Best,
N




________________________________
Von: Vasil Velichkov <vvvelich...@gmail.com>
Gesendet: Dienstag, 21. März 2023 19:06:06
An: Beckmann, Niklas
Cc: discuss-gnuradio@gnu.org
Betreff: Re: AW: AW: AW: Import Error "undefined symbol"

Hi Niklas,

On 21/03/2023 18.02, Beckmann, Niklas wrote:
> I have two blocks in the module, where I use "digital". Which source code do 
> you need exactly, the .h file in the include folder, the _impl.cc file from 
> the lib folder,
> or the _impl.h file from the lib folder (or all of them?) ?

The _impl.{h,cc} files as the .h file most likely does not contain anything 
that's important for this crash.

> I could provide anything that "helps to help" .

Install the gnuradio's debug symbols and then take another backtrace.

How did you install gnuradio, which version and which Linux distribution?

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