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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`parallel/test-temporal-with-zoneinfo` fails on Linux s390x","articleBody":"\nWhen configured with `--v8-enable-temporal-support`, `parallel/test-temporal-with-zoneinfo` fails on Linux s390x.\ne.g. https://ci.nodejs.org/job/node-test-commit-linuxone/53661/nodes=rhel9-s390x/console\n\n```\n18:10:11 not ok 3886 parallel/test-temporal-with-zoneinfo\n18:10:11   ---\n18:10:11   duration_ms: 86.44100\n18:10:11   severity: fail\n18:10:11   exitcode: 1\n18:10:11   stack: |-\n18:10:11     /home/iojs/build/workspace/node-test-commit-linuxone/test/parallel/test-temporal-with-zoneinfo.js:19\n18:10:11     assert.strictEqual(pdt.toString(), '1969-07-20T20:17:00Z');\n18:10:11                            ^\n18:10:11     \n18:10:11     Error: Temporal error: Internal error: Failed to load timezone info.\n18:10:11         at Instant.toString (\u003canonymous\u003e)\n18:10:11         at Object.\u003canonymous\u003e (/home/iojs/build/workspace/node-test-commit-linuxone/test/parallel/test-temporal-with-zoneinfo.js:19:24)\n18:10:11         at Module._compile (node:internal/modules/cjs/loader:1811:14)\n18:10:11         at Object..js (node:internal/modules/cjs/loader:1942:10)\n18:10:11         at Module.load (node:internal/modules/cjs/loader:1532:32)\n18:10:11         at Module._load (node:internal/modules/cjs/loader:1334:12)\n18:10:11         at wrapModuleLoad (node:internal/modules/cjs/loader:255:19)\n18:10:11         at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5)\n18:10:11         at node:internal/main/run_main_module:33:47\n18:10:11     \n18:10:11     Node.js v26.0.0-pre\n18:10:11   ...\n```\n\nfor comparison, we're not seeing that fail on [Linux on ppc64le](https://ci.nodejs.org/job/node-test-commit-plinux/62543/) or Linux on x64, which might suggest an Endianness issue.\n\ncc @nodejs/platform-s390 ","author":{"url":"https://github.com/richardlau","@type":"Person","name":"richardlau"},"datePublished":"2026-02-13T19:52:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/61808/node/issues/61808"}