Most examples segfault on Linux/Vulkan

[rastertail]

All of the examples excluding triangle and init segfault while trying to run the framegraph. I want to say this is caused by PresentNode given that the triangle example doesn't use it and is also the only substantial example that works, but I haven't actually tested to see if that's the case.

Tested with:
Linux 5.1.5
NVIDIA driver 430.26
rustc 1.35.0

[fu5ha]

I'm going on a limb and saying this is probably the Vulkan debug layer bug. Do you have the latest Vulkan SDK installed? If so, the info about only caused on the ones without PresentNode could be a helpful clue!

[rastertail]

I think so? I'm a little confused right now, the LunarG website says the latest version is 1.1.108, yet all of the Arch Linux packages (which I am on) are version 1.1.112

[fu5ha]

Interesting, well I'm guessing it's above 1.1.106 either way. Try downgrading to 1.1.106 if you can, should clear up the segfault.

[rastertail]

Definitely seems to be an issue with the validation layers - compiling with --release (disables validation layers in gfx-backend-vulkan) works fine.

[jaynus]

Fix has just been merged. https://github.com/KhronosGroup/Vulkan-ValidationLayers/pull/1035/files

We should see this fixed in the next version of the validation layers. Closing.