Crash with complex model (2.6.0 alpha 2)

[the-ress]

Description of the bug

PS crashed after adding a complex model. I had PS set to default settings with 0.2mm/Prusament PETG/MK3S+ and added the model. Then I switched to another app. When I wanted to switch back to PS, it wasn't there (and I didn't saw any error window either), but a crash dump file got created. On the next attempt it didn't crash.

I'm running PS with --sw-renderer (because reasons).

The model is https://cults3d.com/en/3d-model/game/albedo-genshin-impact (I can send the STL privately if needed.)

Project file & How to reproduce

Crash dump: prusa-slicer.exe.15080.zip

Checklist of files included above

• [ ] Project file
• [ ] Screenshot

Version of PrusaSlicer

Version 2.6.0-alpha2+win64

Operating system

Windows 11 (22621.1194)

Printer model

Prusa MK3S+

[lukasmatena]

@the-ress Thanks. The dump leads to an event handler reacting to a keypress, which tried to open some tool from the left toolbar. The crash happened when undo/redo tried to capture the snapshot. It is difficult to tell more without full memory dump, but it may be enough. I will look through the relevant code later.

[the-ress]

Thanks for the details. I'll try to reproduce it and capture a full dump.

[the-ress]

Good news! I managed to reliably reproduce it:

1. Open a new instance
2. Press Ctrl+I
3. Paste STL path (preferably a complex one, but it should work with any STL if you're fast enough in step 5)
4. Press Enter
5. Rapidly press L for a few seconds

Here's the full memory dump: https://tomcova-my.sharepoint.com/:u:/g/personal/tereza_tomcova_onmicrosoft_com/ESptOVzFmHBIgOB2Fs7h32oBRsRcgcqeZ7CONbtlBcWuKw?e=S4xIA4 (There should be a download button in top left corner.)