229495 2021-08-25 07:59:38 -0700 Regression (240345@main): Many ChakraCore.yaml JSC tests are flaky failures on jsc-mips queue 2021-08-25 08:05:24 -0700 1 1 1 Unclassified WebKit JavaScriptCore Other Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=227989 P2 Normal --- 1 aakash_jain webkit-unassigned aperez dpino keith_miller lmoura ryanhaddad oldest_to_newest 1787167 0 aakash_jain 2021-08-25 07:59:38 -0700 Many ChakraCore.yaml JSC tests are flaky failures. e.g.: https://ews-build.webkit.org/#/builders/45/builds/6414 Found 149 pre-existing JSC test failures: ChakraCore.yaml/ChakraCore/test/Function/argumentsResolution.js.default, ChakraCore.yaml/ChakraCore/test/Operators/unaryOps.js.default, stress/for-in-tests.js.default, ChakraCore.yaml/ChakraCore/test/es6/unicode_whitespace.js.default, ChakraCore.yaml/ChakraCore/test/UnifiedRegex/class-case.js.default, stress/for-in-modify-int-loop-var.js.eager-jettison-no-cjit, stress/has-own-property-structure-for-in-loop-correctness.js.no-llint, stress/for-in-invalidate-context-weird-assignments.js.no-cjit-collect-continuously, stress/sloppy-mode-function-hoisting.js.no-cjit-collect-continuously, microbenchmarks/sorting-benchmark.js.mini-mode ... Found flaky tests: ChakraCore.yaml/ChakraCore/test/Bugs/blue_1096569.js.default, ChakraCore.yaml/ChakraCore/test/Error/CallNonFunction.js.default, ChakraCore.yaml/ChakraCore/test/Error/ErrorCtorProps.js.default, ChakraCore.yaml/ChakraCore/test/Function/argumentsResolution.js.default, ChakraCore.yaml/ChakraCore/test/Object/defineProperty.js.default, ChakraCore.yaml/ChakraCore/test/Operators/unaryOps.js.default, ChakraCore.yaml/ChakraCore/test/UnifiedRegex/class-case.js.default, ChakraCore.yaml/ChakraCore/test/es5/enumerable.js.default, ChakraCore.yaml/ChakraCore/test/es5/hasItem.js.default, ChakraCore.yaml/ChakraCore/test/es6/unicode_whitespace.js.default Other examples: https://ews-build.webkit.org/#/builders/45/builds/6427 https://ews-build.webkit.org/#/builders/45/builds/6375 https://ews-build.webkit.org/#/builders/45/builds/6320 1787169 1 aakash_jain 2021-08-25 08:04:41 -0700 Results database points to regressions range of 240344@main - 240347@main for https://results.webkit.org/?suite=javascriptcore-tests&test=ChakraCore.yaml%2FChakraCore%2Ftest%2FBugs%2Fblue_1096569.js.default r280760 (240345@main) seems like the one which caused this, corresponding bug was https://bugs.webkit.org/show_bug.cgi?id=227989. On this bug jsc-mips-tests EWS didn't run on latest patch, but did indicate similar failures on previous patch in https://ews-build.webkit.org/#/builders/45/builds/6089