[Webkit-unassigned] [Bug 194525] [ Mac WK2 ] REGRESSION (r240158) Layout Test http/wpt/fetch/response-opaque-clone.html is a flaky text diff

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194525

--- Comment #4 from Shawn Roberts <sroberts at apple.com> ---
Some additional repro steps:

Did some additional testing with a single child process to make sure it's not a full parallel issue.

It is highly flaky on Mac, only 1 out of ~2500 iterations are a failure.

Reproducible locally with the most current revision r242721 and r240158 with :

run-webkit-tests http/wpt/fetch/response-opaque-clone.html --iterations 2500 --child-processes 1

Newer errors on the build logs show the same as my local diff :

@@ -1,3 +1,4 @@
+CONSOLE MESSAGE: Cache API operation failed: Failed writing data to the file system

-PASS Check opaque response can be cloned and cached correctly 
+FAIL Check opaque response can be cloned and cached correctly promise_test: Unhandled rejection with value: object "TypeError: Failed writing data to the file system"

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