Crash when trying to access web gpu / worker threads

[srinivaassunil]

How can we reproduce the crash?

setup a demo using this library
https://github.com/sb2702/websr and bun will crash as soon as encoding starts

JavaScript/TypeScript code that reproduces the crash?

import WebSR from "@websr/websr";
import { useEffect, useRef } from "react";
import { toast } from "sonner";


function Upscaler() {
  const gpu = useRef<GPUDevice | false | null>(null);
  useEffect(() => {
    const init = async () => {
      try {
        if (gpu.current) {
          return;
        }
        gpu.current = await WebSR.initWebGPU();
        if (!gpu) return toast.error("Browser/device doesn't support WebGPU");
        const targetCanvas = document.getElementById(
          "video-out"
        ) as HTMLCanvasElement;
        const video = document.querySelector("video-in") as HTMLVideoElement;
        if (!video) return;
        if (!targetCanvas) return;
        if (!gpu.current) return;
        const websr = new WebSR({
          source: video,
          network_name: "anime4k/cnn-2x-s",
          weights: await (await fetch("./cnn-2x-s.json")).json(),
          gpu: gpu.current,
          canvas: targetCanvas,
        });
        await websr.start();
      } catch (error) {
        console.log("error in init-->", error);
        throw error;
      }
    };
  }, []);

  return (
    <div className="w-full h-full p-10 bg-slate-200">
      <video
        id="video-in"
        src="/sample-video.mp4"
        controls
        autoPlay
        className="width-60 aspect-video"
      />
      <canvas id="video-out" />
    </div>
  );
}

Relevant log output

Bun v1.1.8 (89d25807) Windows x64
Args: "C:\Users\srini\.bun\bin\bun.exe", "--bun", "vite"
Features: jsc Bun.stdin(2) Bun.stdout abort_signal dotenv http_server spawn(2) transpiler_cache(17) tsconfig(2)
Builtins: "bun:jsc" "bun:main" "node:assert" "node:buffer" "node:child_process" "node:crypto" "node:dns" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:perf_hooks" "node:process" "node:querystring" "node:readline" "node:stream" "node:string_decoder" "node:tls" "node:tty" "node:url" "node:util" "node:util/types" "node:zlib" "node:worker_threads" "ws" "node:v8"
Elapsed: 8713ms | User: 609ms | Sys: 93ms
RSS: 0.77GB | Peak: 0.79GB | Commit: 5.41GB | Faults: 211651

panic(main thread): Internal assertion failure
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

 https://bun.report/1.1.8/wa189d2580A6pghoFglq4L+g0uIwit1F+swC02ljLw+pjeuztkegzqkek37xG2t9t1CA0eNrzzCtJLcpLzFFILC5OLSrJzM9TSEvMzCktSgUAiSkKPg

error: script "start" exited with code 3

Stack Trace (bun.report)

Bun v1.1.8 (89d2580) on windows x86_64 [RunCommand]

panic: Internal assertion failure

• debug.zig:373: panicExtra
• debug.zig:348: panic
• output.zig:356: panic
• bun.zig:3177: assertionFailure
• bun.zig:229: cast
• uv__work_done
• ??
• uv_run
• uws.zig:2619: run
• JSC__VM__holdAPILock