Godot editor crashing due to illegal instruction (Ubuntu VM)

[tobydjones]

Tested versions

• Reproducible in v4.2.2.stable.official [15073af]

System information

Godot v4.2.2.stable - Ubuntu 22.04.4 LTS 22.04 - X11 - GLES3 (Compatibility) - llvmpipe (LLVM 15.0.7, 256 bits) () - Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz (2 Threads)

Issue description

I have been using Godot on an Azure VM (Ubuntu) for a few months with no issues. Yesterday, however, the editor started crashing a minute or so after opening my project, with no error message.

edited to remove MRP, as that introduced a different (known) bug

Here's the verbose output of my actual project: godot crash - game server project.txt

[AThousandShips]

This sounds like it's not a Godot problem but the VM, I'd say that if it doesn't happen on a genuine machine the error lies in the implementation of the VM and if we can identify the cause and it's trivial to fix we can do that

[tobydjones]

I should have said my home PC is Windows 10, not Ubuntu, so I can't rule out Ubuntu itself, but it could well be the VM.
What can I do to help track down the issue? Is there any software I can install? Thanks.
There's no core-dump, is that a setting or something I have to install? Would it be useful?

[AThousandShips]

I don't know in this case, will see if I can find some resources, but might be someone else who can point in the right direction as well

[alvinhochun]

• Godot crash in a Linux VM (VMWare, VirtualBox) or without Vulkan GPU when using Vulkan software rasterizer (llvmpipe crashes) #82435

[tobydjones]

• Godot crash in a Linux VM (VMWare, VirtualBox) or without Vulkan GPU when using Vulkan software rasterizer (llvmpipe crashes) #82435

That looks very promising, thank you.

(edit) Unfortunately that's not the issue, as my project is in Compatibility mode

[huwpascoe]

Can't imagine Godot requiring next gen SIMD instructions. Got to find out what's in that core dump to be sure.

[tobydjones]

@huwpascoe Here's the: core dump

I will attempt to look myself, though I don't know what I'm doing...

gdb gave me:
#0 0x000078b5ee697edc in ?? ()

I found this thread about compiling Godot with debugging symbols but I don't want to have to go through that hassle. Is there anywhere I can download 4.2.2 with debugging symbols included please?

[huwpascoe]

If it's possible to get gdb to show the actual data at that address or an asm view or something then that'd help.