webgpureport.org crashes servo

[beaufortfrancois]

When running Servo 0.0.1-5e8f70f with --pref dom.webgpu.enabled, it fails to render https://webgpureport.org/

Without the pref, it loads and simply says WebGPU is not supported.

Is this a known issue?

[jdm]

Is there any output in your terminal window?

[beaufortfrancois]

Here it is:

$ /Applications/Servo.app/Contents/MacOS/servo --pref dom.webgpu.enabled https://webgpureport.org
2023-12-22 15:53:14.784 servo[13975:3432175] WARNING: Secure coding is not enabled for restorable state! Enable secure coding by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState: and returning YES.
UNSUPPORTED (log once): POSSIBLE ISSUE: unit 1 GLD_TEXTURE_INDEX_2D is unloadable and bound to sampler type (Float) - using zero texture because texture unloadable
called `Result::unwrap()` on an `Err` value: RecvError (thread Script(1,1), at components/script/script_thread.rs:1498)
[2023-12-22T14:53:15Z ERROR servo::main2] called `Result::unwrap()` on an `Err` value: RecvError

[beaufortfrancois]

FYI https://demo.servo.org/experiments/webgpu-game-of-life/ works

$ /Applications/Servo.app/Contents/MacOS/servo --pref dom.webgpu.enabled https://demo.servo.org/experiments/webgpu-game-of-life/
2023-12-22 15:57:59.875 servo[14319:3436272] WARNING: Secure coding is not enabled for restorable state! Enable secure coding by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState: and returning YES.
UNSUPPORTED (log once): POSSIBLE ISSUE: unit 1 GLD_TEXTURE_INDEX_2D is unloadable and bound to sampler type (Float) - using zero texture because texture unloadable

[beaufortfrancois]

I played a bit more and succeeded to make servo not crash when removing the WebGPU API javascript call below:

await navigator.gpu.requestAdapter({ forceFallbackAdapter: true })

[beaufortfrancois]

According to 71e0372, @sagudev may be interested in this crash.

[sagudev]

I opened #30915, but something like this is expected because our webgpu support is still very experimental.

Thanks for detailed report.