worker_threads stuck when passed execArgv: ["--inspect-brk"] #53648
Description
Version
v20.15.0
Platform
Darwin Aris-MacBook-Air.local 23.5.0 Darwin Kernel Version 23.5.0: Wed May 1 20:19:05 PDT 2024; root:xnu-10063.121.3~5/RELEASE_ARM64_T8112 arm64
Subsystem
No response
What steps will reproduce the bug?
// worker-repro.mjs
import { isMainThread, Worker } from "node:worker_threads";
import { fileURLToPath } from "node:url";
if (isMainThread) {
const worker = new Worker(fileURLToPath(import.meta.url), {
execArgv: ["--inspect-brk"],
});
await new Promise((r) => setTimeout(r, 1_000));
setTimeout(() => {
console.log("Time out waiting for terminate, calling process.exit()");
process.exit();
}, 1000).unref();
setTimeout(
() => console.log("This is never logged but process.exit doesnt exit"),
2000
).unref();
console.log("Terminating...");
await worker.terminate();
console.log("Done");
} else {
console.log("Worker running");
}How often does it reproduce? Is there a required condition?
Always on 20.15.0. Works fine on 20.14.0.
What is the expected behavior? Why is that the expected behavior?
- Worker should start
- Worker should exit
- Main thread should exit
ari ~/Git/repros $ nvm use 20.14.0
Now using node v20.14.0 (npm v10.7.0)
ari ~/Git/repros $ node worker-repro.mjs
Worker running
Terminating...
DoneWhat do you see instead?
- Worker does not start
worker.terminate()is stuckprocess.exit()does not exit the main process
ari ~/Git/repros $ node worker-repro.mjs
Terminating...
Time out waiting for terminate, calling process.exit()
# Stuck here forever, exits on CTRL+cAdditional information
Even though --inspect-brk doesn't work on workers (#26609 (comment)), it still shouldn't make them stuck.