Bug 302347

Summary:	[macOS-25A354] API-macOS Debug: TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks tests are failing on M4 bots
Product:	WebKit	Reporter:	Marta Darbinyan <darbinyan>
Component:	WebGL	Assignee:	Nobody <webkit-unassigned>
Status:	REOPENED
Severity:	Normal	CC:	djg, kbr, kkinnunen, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Marta Darbinyan

Reported 2025-11-11 12:25:50 PST

The following tests are failing on API macOS Debug runs in UAT. TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsefalsefalse TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsefalsetrue TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsetruefalse TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsetruetrue TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truefalsefalse TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truefalsetrue TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truetruefalse TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truetruetrue 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsefalsefalse 03:38:56.033 1105 2025-11-07 02:59:01.673 TestWebKitAPI[4692:91015] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 186794008. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsefalsetrue 03:38:56.033 1105 2025-11-07 02:59:02.267 TestWebKitAPI[4733:91443] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 186875928. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsetruefalse 03:38:56.033 1105 2025-11-07 02:59:03.037 TestWebKitAPI[4773:91805] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 285163544. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/falsetruetrue 03:38:56.033 1105 2025-11-07 02:59:03.711 TestWebKitAPI[4818:92265] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 276742168. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truefalsefalse 03:38:56.033 1105 2025-11-07 02:59:04.429 TestWebKitAPI[4861:92677] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 262422552. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truefalsetrue 03:38:56.033 1105 2025-11-07 02:59:05.170 TestWebKitAPI[4908:93098] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 262357016. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truetruefalse 03:38:56.033 1105 2025-11-07 02:59:06.168 TestWebKitAPI[4957:93578] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 262570008. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105 03:38:56.033 1105 TestWebKitAPI.GraphicsContextGLCocoaTest/AnyContextAttributeTest.UnrecycledDisplayBuffersNoLeaks/truetruetrue 03:38:56.033 1105 2025-11-07 02:59:07.079 TestWebKitAPI[5006:94058] NSEventConcurrentProcessingEnabled=NO 03:38:56.033 1105 03:38:56.033 1105 /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Tools/TestWebKitAPI/Tests/WebCore/cocoa/TestGraphicsContextGLCocoa.mm:563 03:38:56.033 1105 Value of: memoryFootprintChangedBy(lastFootprint, footprintChange, footprintError) 03:38:56.033 1105 Actual: false (Footprint changed by 262389784. Expected at most 0+-157286400) 03:38:56.033 1105 Expected: true 03:38:56.033 1105

Attachments
Add attachment proposed patch, testcase, etc.

Marta Darbinyan

Comment 1 2025-11-11 12:26:30 PST

rdar://164264557

EWS

Comment 2 2025-11-11 14:26:21 PST

Committed 302868@main (0c76cfb19409): <https://commits.webkit.org/302868@main> Reviewed commits have been landed. Closing PR #53766 and removing active labels.

Alexey Proskuryakov

Comment 3 2025-11-11 15:17:49 PST

This still needs to be fixed, only gardening landed.

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