Bug 229526

Summary: REGRESSION(r281513?): [ JSC Catalina+ Debug ] 16 stress/intl-enumeration.js (JSC Tests) are flaky failing
Product: WebKit Reporter: Robert Jenner <jenner>
Component: JavaScriptCoreAssignee: Yusuke Suzuki <ysuzuki>
Status: RESOLVED FIXED    
Severity: Normal CC: ews-watchlist, keith_miller, mark.lam, msaboff, saam, tzagallo, webkit-bot-watchers-bugzilla, webkit-bug-importer, ysuzuki
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Description Robert Jenner 2021-08-25 15:47:46 PDT 
It looks like the tests were added here:
https://trac.webkit.org/changeset/281513/webkit

and have been flaky failing with the following assertion ever since:

ASSERTION FAILED: !m_needExceptionCheck
stress/intl-enumeration.js.bytecode-cache: ./runtime/VM.cpp(1485) : void JSC::VM::verifyExceptionCheckNeedIsSatisfied(unsigned int, JSC::ExceptionEventLocation &)


Build: 
https://build.webkit.org/#/builders/100/builds/742


In their history it does appear that they all fail at the same intervals as well:
https://results.webkit.org/?suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&suite=javascriptcore-tests&test=stress%2Fintl-enumeration.js.dfg-eager&test=stress%2Fintl-enumeration.js.dfg-eager-no-cjit-validate&test=stress%2Fintl-enumeration.js.eager-jettison-no-cjit&test=stress%2Fintl-enumeration.js.ftl-eager&test=stress%2Fintl-enumeration.js.ftl-eager-no-cjit&test=stress%2Fintl-enumeration.js.ftl-eager-no-cjit-b3o1&test=stress%2Fintl-enumeration.js.ftl-no-cjit-b3o0&test=stress%2Fintl-enumeration.js.ftl-no-cjit-no-inline-validate&test=stress%2Fintl-enumeration.js.ftl-no-cjit-no-put-stack-validate&test=stress%2Fintl-enumeration.js.ftl-no-cjit-small-pool&test=stress%2Fintl-enumeration.js.ftl-no-cjit-validate-sampling-profiler&test=stress%2Fintl-enumeration.js.mini-mode&test=stress%2Fintl-enumeration.js.no-cjit-validate-phases&test=stress%2Fintl-enumeration.js.no-ftl&test=stress%2Fintl-enumeration.js.no-llint&test=stress%2Fmap-iteration-oas.js.default&style=debug
Comment 1 Radar WebKit Bug Importer 2021-08-25 15:48:11 PDT 
<rdar://problem/82361685>
Comment 2 Yusuke Suzuki 2021-08-25 16:48:01 PDT 
Created attachment 436440 [details]
Patch
Comment 3 Mark Lam 2021-08-25 16:51:17 PDT 
Comment on attachment 436440 [details]
Patch

r=me
Comment 4 Yusuke Suzuki 2021-08-25 17:16:02 PDT 
Comment on attachment 436440 [details]
Patch

Landing since it only affects on debug jsc stress tests, which does not exist in EWS
Comment 5 EWS 2021-08-25 17:43:23 PDT 
Committed r281607 (240965@main): <https://commits.webkit.org/240965@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 436440 [details].