0.22.1: Segfault if star catalogues (v2.0) added to existing installation

[Kangie]

While packaging 0.22.1 for Gentoo (gentoo/gentoo#25054) I noticed that if I enable the stars USE flag (which simply downloads the stars catalogue v2.0 files from stellarium-data & installs to /usr/share/stellarium/stars/default) after initialising the application without it that the application segfaults immediately after importing/loading the data for the first time.

All subsequent launches behave as expected, and if the initial launch detects these files it does not segfault.

Expected Behaviour

Stellarium should launch successfully when star catalogue .cat files are added.

Actual Behaviour

. . .
Loading nomenclature for Solar system bodies ...
Loaded 15781 / 15783 items of planetary surface nomenclature
WARNING - These planets to assign nomenclature items were not found: "Dactyl"
Loading star data ...
"Loading /usr/share/stellarium/stars/default/stars_0_0v0_8.cat: 0_0v0_8; 4979"
"Loading /usr/share/stellarium/stars/default/stars_1_0v0_8.cat: 1_0v0_8; 21806"
"Loading /usr/share/stellarium/stars/default/stars_2_0v0_8.cat: 2_0v0_8; 150826"
"Loading /usr/share/stellarium/stars/default/stars_3_1v0_4.cat: 3_1v0_4; 425807"
Found file  "/usr/share/stellarium/stars/default/stars_4_1v0_2.cat" , checking md5sum..
MD5 sum correct!
"Loading /usr/share/stellarium/stars/default/stars_4_1v0_2.cat: 4_1v0_4; 1692779"
Found file  "/usr/share/stellarium/stars/default/stars_5_2v0_1.cat" , checking md5sum..
MD5 sum correct!
[1]    1741584 segmentation fault (core dumped)  stellarium --verbose

Steps to reproduce

1. Install stellarium with USE=-stars
2. Launch the application
3. Install with USE=stars
4. Launch the application

I assume that this behaviour can be replicated by installing a binary distribution, launching it without the catalogue files, adding the catalogue files, then launching the app again.

System

• Stellarium version: 0.22.1 - Gentoo
• Operating system: Gentoo, ~amd64
• Graphics Card: Nvidia

[github-actions]

Thanks for adding your first issue to Stellarium. If you have questions, please do not hesitate to contact us.

[Kangie]

See the linked PR for additional info / troubleshooting.

[DarthGandalf]

Same happens if stars were available on previous runs, but then got removed. Then the first run after the removal also segfaults

[github-actions]

Hello @Kangie! OK, developers can reproduce the issue. Thanks for the report!

[github-actions]

Hello @Kangie! Please check the fresh version (development snapshot) of Stellarium:
https://github.com/Stellarium/stellarium-data/releases/tag/weekly-snapshot

[github-actions]

Hello @Kangie! Please check the latest stable version of Stellarium:
https://github.com/Stellarium/stellarium/releases/latest