[Webkit-unassigned] [Bug 188394] REGRESSION: [mac-wk1] Layout Test inspector/layers/layer-tree-manager.html and inspector/layers/layers-anonymous.html are flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188394

--- Comment #7 from Truitt Savell <tsavell at apple.com> ---
Found that these three tests run in succession makes the failure occur around 90% of the time:

imported/w3c/web-platform-tests/html/dom/interfaces.html
inspector/layers/layer-tree-manager.html
inspector/layers/layers-anonymous.html

I used the command:
run-webkit-tests --root testbuild-235621 imported/w3c/web-platform-tests/html/dom/interfaces.html inspector/layers/layer-tree-manager.html inspector/layers/layers-anonymous.html --child-processes 1 -1 --iterations 10

Using this I was able to begin bisecting the webkit revisions to find the start of the regression. I found the revision that caused these failures to occur to be https://trac.webkit.org/changeset/234330/webkit. 

If you run the above command on r234329 no failures will occur, if it is ran on r234330 than the failure reproduces.

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