[Webkit-unassigned] [Bug 231444] New: [ iOS15 ] imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html is a flaky crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=231444

            Bug ID: 231444
           Summary: [ iOS15 ]
                    imported/blink/fast/dom/shadow/shadowdom-for-keygen-on
                    ly-shadow.html is a flaky crash
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ehutchison at apple.com

Created attachment 440654

  --> https://bugs.webkit.org/attachment.cgi?id=440654&action=review

Test List

imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html

is a flaky crash on iOS15

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fblink%2Ffast%2Fdom%2Fshadow%2Fshadowdom-for-keygen-only-shadow.html

Build: https://build.webkit.org/#/builders/268/builds/87

Results: https://build.webkit.org/#/builders/268/builds/87

Crash Log: No crash log found for GPUProcess:19474.

STDIO:

08:54:36.279 7677 worker/3 GPUProcess crash, pid = 19474

08:54:36.668 7677 worker/3 This test marked as a crash because of no data while reading stdout for the server process.
08:54:36.669 7677 worker/3 This test marked as a crash because of no data while reading stdout for the server process.

08:55:21.334 7677 worker/3 worker/3 imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html crashed, (no stderr)
08:55:21.337 7677 [24821/56595] imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html failed unexpectedly (GPUProcess crashed [pid=19474])
08:55:21.337 7677 worker/3 killing driver
08:55:21.355 7677 worker/3 "/usr/libexec/PlistBuddy -c Print CFBundleExecutable /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/WebKitBuild/Release-iphonesimulator/WebKitTestRunnerApp.app/Info.plist" took 0.02s

Reproduced with complete test list (attached) on ToT (r283732) using run-webkit-tests --clobber-old-results --ios-simulator --verbose --test-list=(test list attached)

Unable to narrow down tests causing crash locally as most attempts to repro failed to produce the crash result.

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