Periodic failures with parallel/test-child-process-stdout-flush-exit #61393
Description
Test
parallel/test-child-process-stdout-flush-exit
Platform
Linux ARM64
Console output
2026-01-15T19:40:03.5158785Z not ok 572 parallel/test-child-process-stdout-flush-exit
2026-01-15T19:40:03.5158846Z ---
2026-01-15T19:40:03.5159008Z duration_ms: 418.60800
2026-01-15T19:40:03.5159093Z severity: fail
2026-01-15T19:40:03.5159158Z exitcode: 1
2026-01-15T19:40:03.5159224Z stack: |-
2026-01-15T19:40:03.5159287Z node:assert:90
2026-01-15T19:40:03.5159370Z throw new AssertionError(obj);
2026-01-15T19:40:03.5159426Z ^
2026-01-15T19:40:03.5159799Z
2026-01-15T19:40:03.5160025Z AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:
2026-01-15T19:40:03.5160103Z + actual - expected
2026-01-15T19:40:03.5160161Z
2026-01-15T19:40:03.5160227Z + '\nfiller\n'
2026-01-15T19:40:03.5160288Z - 'goodbye\n'
2026-01-15T19:40:03.5160616Z at ChildProcess.<anonymous> (/build/node-v20.19.6/test/parallel/test-child-process-stdout-flush-exit.js:54:12)
2026-01-15T19:40:03.5160814Z at ChildProcess.<anonymous> (/build/node-v20.19.6/test/common/index.js:474:15)
2026-01-15T19:40:03.5160926Z at ChildProcess.emit (node:events:524:28)
2026-01-15T19:40:03.5161053Z at maybeClose (node:internal/child_process:1104:16)
2026-01-15T19:40:03.5161228Z at ChildProcess._handle.onexit (node:internal/child_process:304:5) {
2026-01-15T19:40:03.5161308Z generatedMessage: true,
2026-01-15T19:40:03.5161380Z code: 'ERR_ASSERTION',
2026-01-15T19:40:03.5161452Z actual: '\nfiller\n',
2026-01-15T19:40:03.5161523Z expected: 'goodbye\n',
2026-01-15T19:40:03.5161601Z operator: 'strictEqual'
2026-01-15T19:40:03.5161658Z }
2026-01-15T19:40:03.5161717Z
2026-01-15T19:40:03.5161783Z Node.js v20.19.6Build links
- (none public, sorry)
Additional information
I'm not sure if this is the right place to report this. However, we ran into this flaky test when building Node on a machine with a high core count and a lot of other compilation jobs happening.