Bug 247775

Summary:	REGRESSION (256161@main): [ macOS Debug ] TestWebKitAPI.GPUProcess.OnlyLaunchesGPUProcessWhenNecessaryMediaFeatureDetection is a consistent failure
Product:	WebKit	Reporter:	Karl Rackler <rackler>
Component:	New Bugs	Assignee:	Eric Carlson <eric.carlson>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	eric.carlson, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Karl Rackler 2022-11-10 17:56:32 PST

Description:
TestWebKitAPI.GPUProcess.OnlyLaunchesGPUProcessWhenNecessaryMediaFeatureDetection

The first failure I saw on the dashboard was at 256161@main.  This test consistently fails for BigSur, Monterey, and Ventura Debug bots.  

Reproduction steps:
I can reproduce this on 256164@main but cannot reproduce it on 256158@main or earlier.  Looking at the commits, https://commits.webkit.org/compare/256158@main...256164@main , 256161@main modifies the GPUProcess and appears to be the commit that started the consistent failures.

Command: 
run-api-tests --debug TestWebKitAPI.GPUProcess.OnlyLaunchesGPUProcessWhenNecessaryMediaFeatureDetection

History:
https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.GPUProcess.OnlyLaunchesGPUProcessWhenNecessaryMediaFeatureDetection&limit=5000

test result:
Failed

    TestWebKitAPI.GPUProcess.OnlyLaunchesGPUProcessWhenNecessaryMediaFeatureDetection
        2022-11-10 17:33:45.491 com.apple.WebKit.WebContent.Development[37791:1078914] ApplePersistence=NO
        LEAK: 1 WebProcessPool
        LEAK: 1 WebPageProxy

        /Volumes/Data/worker/trunk-monterey-debug-archive/build/OpenSource/Tools/TestWebKitAPI/Tests/WebKitCocoa/GPUProcess.mm:282
        Expected equality of these values:
          [configuration.get().processPool _gpuProcessIdentifier]
            Which is: 37794
          0

Comment 1 Radar WebKit Bug Importer 2022-11-10 18:01:03 PST

<rdar://problem/102221029>

Comment 2 Eric Carlson 2022-11-11 10:09:58 PST

Pull request: https://github.com/WebKit/WebKit/pull/6403

Comment 3 EWS 2022-11-11 15:18:54 PST

Committed 256591@main (ff70798d7add): <https://commits.webkit.org/256591@main>

Reviewed commits have been landed. Closing PR #6403 and removing active labels.