sequential/test-fs-watch and a few fs/watch related tests being flaky

[jakecastelli]

Test

sequential/test-fs-watch

Platform

AIX

Console output

---
duration_ms: 180.704
exitcode: 1
severity: fail
stack: |-
  node:internal/fs/watchers:255
      throw error;
      ^

  Error: ENOSPC: System limit for number of file watchers reached, watch '/home/iojs/build/.tmp.4357/watch.txt'
      at FSWatcher.<computed> (node:internal/fs/watchers:247:19)
      at Object.watch (node:fs:2549:36)
      at Object.<anonymous> (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix72-ppc64/test/sequential/test-fs-watch.js:61:22)
      at Module._compile (node:internal/modules/cjs/loader:1734:14)
      at Object..js (node:internal/modules/cjs/loader:1899:10)
      at Module.load (node:internal/modules/cjs/loader:1469:32)
      at Function._load (node:internal/modules/cjs/loader:1286:12)
      at TracingChannel.traceSync (node:diagnostics_channel:322:14)
      at wrapModuleLoad (node:internal/modules/cjs/loader:235:24)
      at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:151:5) {
    errno: -28,
    syscall: 'watch',
    code: 'ENOSPC',
    path: '/home/iojs/build/.tmp.4357/watch.txt',
    filename: '/home/iojs/build/.tmp.4357/watch.txt'
  }

  Node.js v24.0.0-pre
...

Build links

• https://ci.nodejs.org/job/node-test-pull-request/65639/
• https://ci.nodejs.org/job/node-test-pull-request/65670/

Additional information

I've observed a pattern that on the AIX platform three of those tests related to fs / watch mode often fail together

parallel.test-fs-watch-recursive-delete
sequential.test-fs-watch
sequential.test-watch-mode

[richardlau]

This is nodejs/build#4035. The problematic machine was taken out of the Jenkins pool.