[R-pkg-devel] Segmentation Fault cause 'memory not mapped' on Debian only

[D Z]

Hi all,
I wanted to publish my RITCH package (https://github.com/DavZim/RITCH) to CRAN, which has Rcpp code.
It has, in it�s CICD Pipeline, Tests for Macos, Windows, and Ubuntu (devel, release,, and oldrel-1), which all succeed on Github Actions.
When I submitted the package to CRAN, I was notified, that I got the following error on Debian (the tests on Windows throw no such bug, neither do the Github Actions tests):


   *** caught segfault ***

  address 0x55939b7ca000, cause 'memory not mapped'

  Segmentation fault

The full Report is currently available here: https://win-builder.r-project.org/incoming_pretest/RITCH_0.1.14_20230420_223157/Debian/00check.log (note the error happens in the test_filter_itch.R unit tests).

I looked for the error online but couldn�t find anything useful, and as I am not able to reproduce the segfault locally, cannot debug it.
Do you have any ideas or hunches what might cause this and how to resolve it?

Thank you,
David

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