libuv assertion on Windows with Node.js 23.x

Why this is a good first issue

The issue involves a libuv assertion on Windows and requires deep knowledge of Node.js internals.

AI Summary

The issue involves a libuv assertion on Windows, likely due to incorrect usage of uv_async_send() after uv_close(). The problem was traced to a large PR (3143 files), making it difficult to pinpoint the exact source. Deep knowledge of Node.js internals and libuv is required to diagnose and fix.

Issue Description

Version

23.x+

Platform

Windows

Subsystem

No response

What steps will reproduce the bug?

Write the following file as registryServer.mjs:

registryServer.mjs

The original file is https://github.com/nodejs/corepack/blob/main/tests/_registryServer.mjs, I tried to trim the unrelated stuff but it's still a large file:

import { createHash, createSign, generateKeyPairSync } from "node:crypto";
import { once } from "node:events";
import { createServer } from "node:http";
import { gzipSync } from "node:zlib";

let privateKey, keyid;

({ privateKey } = generateKeyPairSync(`ec`, {
  namedCurve: `sect239k1`,
}));

const { privateKey: p, publicKey } = generateKeyPairSync(`ec`, {
  namedCurve: `sect239k1`,
  publicKeyEncoding: {
    type: `spki`,
    format: `pem`,
  },
});
privateKey ??= p;
keyid = `SHA256:${createHash(`SHA256`).end(publicKey).digest(`base64`)}`;
process.env.COREPACK_INTEGRITY_KEYS = JSON.stringify({
  npm: [
    {
      expires: null,
      keyid,
      keytype: `ecdsa-sha2-sect239k1`,
      scheme: `ecdsa-sha2-sect239k1`,
      key: publicKey.split(`\n`).slice(1, -2).join(``),
    },
  ],
});

function createSimpleTarArchive(fileName, fileContent, mode = 0o644) {
  const contentBuffer = Buffer.from(fileContent);

  const header = Buffer.alloc(512); // TAR headers are 512 bytes
  header.write(fileName);
  header.write(`100${mode.toString(8)} `, 100, 7, `utf-8`); // File mode (octal) followed by a space
  header.write(`0001750 `, 108, 8, `utf-8`); // Owner's numeric user ID (octal) followed by a space
  header.write(`0001750 `, 116, 8, `utf-8`); // Group's numeric user ID (octal) followed by a space
  header.write(`${contentBuffer.length.toString(8)} `, 124, 12, `utf-8`); // File size in bytes (octal) followed by a space
  header.write(
    `${Math.floor(new Date(2000, 1, 1) / 1000).toString(8)} `,
    136,
    12,
    `utf-8`
  ); // Last modification time in numeric Unix tim

GitHub Labels

windows