Bug 304443

Summary:	NEW TEST(304642@main): [macOS] TestWebKitAPI.MessagePort.MessageToClosedPort is a flaky failure
Product:	WebKit	Reporter:	Marta Darbinyan <darbinyan>
Component:	New Bugs	Assignee:	Brady Eidson <beidson>
Status:	NEW
Severity:	Normal	CC:	webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Marta Darbinyan

Reported 2025-12-18 14:54:02 PST

The following test is flaky failure on macOS after it was enabled in 304642@main. It appear in EWS across different PRs. TestWebKitAPI.MessagePort.MessageToClosedPort 10:17:54.636 44777 TestWebKitAPI.MessagePort.MessageToClosedPort 10:17:54.636 44777 2025-12-18 09:46:39.430 TestWebKitAPI[47792:611118] NSEventConcurrentProcessingEnabled=NO 10:17:54.636 44777 10:17:54.636 44777 /Volumes/Data/worker/macOS-Sonoma-Release-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebKitCocoa/MessagePortProviders.mm:114 10:17:54.636 44777 Expected: (endingFootprint - startingFootprint) < (300000000u), actual: 18446744073672294528 vs 300000000 10:17:54.636 44777 History: https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.MessagePort.MessageToClosedPort Test result: https://ews-build.webkit.org/#/builders/18/builds/122137

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Radar WebKit Bug Importer

Comment 1 2025-12-18 14:56:38 PST

<rdar://problem/166825165>

Brady Eidson

Comment 2 2025-12-18 16:09:20 PST

Pull request: https://github.com/WebKit/WebKit/pull/55659

EWS

Comment 3 2025-12-18 17:48:07 PST

Test gardening commit 304717@main (3c8975e2f26b): <https://commits.webkit.org/304717@main> Reviewed commits have been landed. Closing PR #55659 and removing active labels.

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