Created attachment 391287 [details] https://build.webkit.org/results/Apple-Catalina-Debug-WK2-Tests/r257050%20(2433)/webgpu/whlsl/zero-initialize-values-diff.png webgpu/whlsl/zero-initialize-values.html Description: This test is flaky failing on Mac. The test is flaky failing throughout the visible history. The oldest diff that I am able to load, r254201, has the same percentage and looks the same. History: https://results.webkit.org/?suite=layout-tests&test=webgpu%2Fwhlsl%2Fzero-initialize-values.html&limit=50000 Diff: https://build.webkit.org/results/Apple-Catalina-Debug-WK2-Tests/r257050%20(2433)/webgpu/whlsl/zero-initialize-values-diff.png
<rdar://problem/59628835>
I have marked this test as failing while this issue is investigated. https://trac.webkit.org/changeset/257060/webkit
I can reproduce the issue with r257052 using the command below. run-webkit-tests webgpu/whlsl/zero-initialize-values.html --iterations 4000 --exit-after-n-failures 5 -f --force -g [33/4000] webgpu/whlsl/zero-initialize-values.html failed unexpectedly (reference mismatch) [38/4000] webgpu/whlsl/zero-initialize-values.html failed unexpectedly (reference mismatch) [50/4000] webgpu/whlsl/zero-initialize-values.html failed unexpectedly (reference mismatch) [60/4000] webgpu/whlsl/zero-initialize-values.html failed unexpectedly (reference mismatch) [61/4000] webgpu/whlsl/zero-initialize-values.html failed unexpectedly (reference mismatch) Exiting early after 5 failures. 58 tests run. 53 tests ran as expected, 5 didn't (3942 didn't run):