254248 2023-03-21 18:29:13 -0700 REGRESSION(261825@main?): [ JSC ] 4X Test262-Tests are constant failures in default and strict mode 2023-03-21 21:48:46 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Local Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=254054 InRadar P2 Normal --- 1 jenner ysuzuki webkit-bot-watchers-bugzilla webkit-bug-importer ysuzuki oldest_to_newest 1942989 0 jenner 2023-03-21 18:29:13 -0700 The following 4x test-262-tests are constant failures in default and strict mode on macOS Monterey+: test/built-ins/Function/prototype/bind/instance-length-default-value.js test/intl402/Collator/prototype/compare/compare-function-name.js test/intl402/DateTimeFormat/prototype/format/format-function-name.js test/intl402/NumberFormat/prototype/format/format-function-name.js HISTORY: https://build.webkit.org/#/builders/760 Looking at the test runs there appears to be a pretty clear regression point of 261825@main. That's when the tests started to fail, and it appears that the macOS version, Xcode version, and the timezone database version were all the same between 261825@main, the first observed failure and 261824@main, the last time everything was passing. STDIO FAILURE TEXT: FAIL test/built-ins/Function/prototype/bind/instance-length-default-value.js (default) Full Output: Exception: TypeError: Cannot convert a symbol to a number bind@[native code] global code@/Volumes/Data/worker/Apple-Ventura-AppleSilicon-Release-Test262-Tests/build/JSTests/test262/test/built-ins/Function/prototype/bind/instance-length-default-value.js:41:26 FAIL test/built-ins/Function/prototype/bind/instance-length-default-value.js (strict mode) Full Output: Exception: TypeError: Cannot convert a symbol to a number bind@[native code] global code@/Volumes/Data/worker/Apple-Ventura-AppleSilicon-Release-Test262-Tests/build/JSTests/test262/test/built-ins/Function/prototype/bind/instance-length-default-value.js:42:26 FAIL test/intl402/Collator/prototype/compare/compare-function-name.js (default) Full Output: Exception: Test262Error: descriptor should not be enumerable; descriptor should not be writable FAIL test/intl402/Collator/prototype/compare/compare-function-name.js (strict mode) Full Output: Exception: Test262Error: descriptor should not be enumerable; descriptor should not be writable FAIL test/intl402/DateTimeFormat/prototype/format/format-function-name.js (default) Full Output: Exception: Test262Error: descriptor should not be enumerable; descriptor should not be writable FAIL test/intl402/DateTimeFormat/prototype/format/format-function-name.js (strict mode) Full Output: Exception: Test262Error: descriptor should not be enumerable; descriptor should not be writable FAIL test/intl402/NumberFormat/prototype/format/format-function-name.js (default) Full Output: Exception: Test262Error: descriptor should not be enumerable; descriptor should not be writable FAIL test/intl402/NumberFormat/prototype/format/format-function-name.js (strict mode) Full Output: Exception: Test262Error: descriptor should not be enumerable; descriptor should not be writable 1942990 1 webkit-bug-importer 2023-03-21 18:30:47 -0700 <rdar://problem/107032476> 1942991 2 jenner 2023-03-21 18:33:09 -0700 Starting on Yusuke who introduced: https://commits.webkit.org/261825@main that appears to have caused these test failures. 1943010 3 ysuzuki 2023-03-21 20:32:54 -0700 Pull request: https://github.com/WebKit/WebKit/pull/11795 1943020 4 ews-feeder 2023-03-21 21:48:44 -0700 Committed 261945@main (24e437b8d08f): <https://commits.webkit.org/261945@main> Reviewed commits have been landed. Closing PR #11795 and removing active labels.