[Interest] Crash with Qt application that use OpenGL

Sergio Martins sergio.martins at kdab.com
Thu Apr 20 21:23:10 CEST 2017

On 2017-04-20 20:04, Xavier Bigand wrote:
> It is not necessary a bug from Nvidia, it can comes from bad
> parameters to functions like glDrawElements.

Could be, but you'll have to prove it.

I suggest:
- Create a minimal-testcase which reproduces the problem
- Run apitrace on it [1] (Never used it on Windows, but there are 
binaries for it)
- Re-run the trace under apitrace, hopefully it crashes
- Check if your hypothesis is correct (bad glDrawElements)
- If it's an nvidia bug: Report to Nvidia, attach trace
- If it's an nvidia bug: Open a Qt bug report so the card can be 
- If it's non an nvidia bug: Report a regular Qt bug so it can be fixed, 
attach trace

[1] - http://apitrace.github.io/#download

SĂ©rgio Martins | sergio.martins at kdab.com | Senior Software Engineer
Klarälvdalens Datakonsult AB, a KDAB Group company
Tel: Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322)
KDAB - The Qt, C++ and OpenGL Experts

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