Crashing PC at level 3

[mlgarchery]

Describe the bug

This is a major issue. After scrolling down to level 3, the game started to freeze and then my computer crashed.
I observed the crash twice, a first time on the web version and a second time on the desktop app.

To Reproduce
Steps to reproduce the bug:

1. Go to level 3.
2. Scroll to the end of the level
3. You should experience a issue at this point.

Information about your device (please complete the following information):

• Operating System: Ubuntu 22.04
• Browser: Brave

[NathanLovato]

This shouldn't be possible in the browser as the process is sandboxed within the web browser and shielded from your system. We're a couple on Ubuntu 22.04 using Brave in the team. We took a moment to try and can't reproduce the issue.

We also have thousands of Linux and Ubuntu users who went through this course, and you're the first person to experience something like this. So I suspect there's something specific to your system happening

Do you have anything else you could share, that could help understand what's causing this?

[mlgarchery]

Hi, sorry for the late response. I just reproduced the issue and made my PC crashed 3 times by opening the level 3 and scrolling down. It's frustrating because I can't provide more information as my screen freezes and then I have no more control over my computer.
I tried recording my screen, and here is the last image of it:

[NathanLovato]

Thanks for taking the time. The image doesn't show anything special, unfortunately. I'm unsure we'll be able to address something like this, as you're the only person who encountered this so far.

Have you tried the linux desktop build? Does the same issue occur? You can download it here: https://gdquest.itch.io/learn-godot-gdscript

[mlgarchery]

I don't know how I could collect more data on this issue, and yes, unfortunately I did observe the exact same issue on the desktop version (being on the same machine)
I may be the only person reporting the issue, but my machine is not quite special, so I would think other ppl already encountered it.

[NathanLovato]

I don't know how I could collect more data on this issue

I'm clueless on this one. Especially as it's specifically lesson 3, which has no special data, nothing processing, and it's happening with just scrolling. If it also happens on desktop, it suggests that it's engine-related, and scrolling feels like it's a rendering problem. This might be linked to a driver. But I can't be sure.

If I had access to your machine, I'd just go with trial and error in the Godot editor, removing all content in lesson 3 and re-adding half the blocks as when bisecting, to try and find if there's something specific triggering this.

so I would think other ppl already encountered it.

Given our community and this app's popularity, if it happened commonly at least, we'd know. Our users go out of their way to report the smallest things, things like crashes, we typically get many duplicate reports.

[yilmazdurmaz]

What about the specifications of your PC/laptop? CPU and GPU type, number of cores, system memory, and video memory.
There might be an issue with one of them.

Also, what about the language you are using? maybe the one you switched had a character problem that had not been tested.

I work on translations, and the app even works from inside WSL.

or maybe the problem is fixed somehow since then. can you try it again?

[jscasca]

I ran into exactly the same issue. I have a PC and a laptop, both running Ubuntu 22 using Brave. Laptop crashes every single time. PC can scroll fine. Really hard to debug what's happening as the system completely crashes.

My only clue would be :

brave-browser.desktop[3577]: [3881:3881:1126/210312.720197:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 3 times!

[NathanLovato]

I'm really sorry to hear you've also experienced this! Is it happening only on your laptop and not on the desktop computer, despite them both using Ubuntu 22 and Brave?

One thing that's especially strange is that this is webgl running in a sandbox in the browser. These technologies are meant to at worst freeze the webgl frame in the web page, but never go as far as crashing the entire system.

As you're also on Ubuntu 22, this might be linked to this version of the distro. The only way I would know to debug this, as it's a backend issue somewhere, is to try removing all the lesson 3 content and adding it back piece by piece until the crash can be reproduced. Although that is not certain to work reliably.