Bug 244983 – REGRESSION (252480@main?): [ BigSur wk2 Release ] Seven webgl/2.0.0/deqp/functional/gles3/uniform tests are a flaky failure

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: WebGL

[Karl Rackler]

Description:
webgl/2.0.0/deqp/functional/gles3/uniformbuffers/instance_array_basic_type.html
webgl/2.0.0/deqp/functional/gles3/uniformapi/value_initial.html
webgl/2.0.0/deqp/functional/gles3/uniformapi/random.html

These tests were passing consistently until approximately at 252487@main when they began to flaky fail. 

History:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&test=webgl%2F2.0.0%2Fdeqp%2Ffunctional%2Fgles3%2Funiformapi%2Frandom.html&test=webgl%2F2.0.0%2Fdeqp%2Ffunctional%2Fgles3%2Funiformapi%2Fvalue_initial.html&test=webgl%2F2.0.0%2Fdeqp%2Ffunctional%2Fgles3%2Funiformbuffers%2Finstance_array_basic_type.html

Diff:
https://build.webkit.org/results/Apple-BigSur-Release-WK2-WebGL-GPUProcess-Tests/252487@main%20(8643)/webgl/2.0.0/deqp/functional/gles3/uniformapi/random-diff.txt
https://build.webkit.org/results/Apple-BigSur-Release-WK2-WebGL-GPUProcess-Tests/252501@main%20(8652)/webgl/2.0.0/deqp/functional/gles3/uniformbuffers/instance_array_basic_type-diff.txt
https://build.webkit.org/results/Apple-BigSur-Release-WK2-WebGL-GPUProcess-Tests/252490@main%20(8646)/webgl/2.0.0/deqp/functional/gles3/uniformapi/value_initial-diff.txt

[Radar WebKit Bug Importer]

<rdar://problem/99746589>

[Karl Rackler]

I have marked this test as a flaky failure while this issue is investigated.

[EWS]

Test gardening commit 254302@main (7ae389e979b0): <https://commits.webkit.org/254302@main>

Reviewed commits have been landed. Closing PR #4173 and removing active labels.

[Karl Rackler]

These two test appear to have the same estimated regression point:
webgl/2.0.0/deqp/functional/gles3/uniformbuffers/single_nested_struct.html
webgl/2.0.0/deqp/functional/gles3/uniformbuffers/multi_nested_struct.html

[Karl Rackler]

Update expectations.

[EWS]

Test gardening commit 254338@main (a712cd03c4bf): <https://commits.webkit.org/254338@main>

Reviewed commits have been landed. Closing PR #4205 and removing active labels.

[Alexey Proskuryakov]

252487@main was "Add support for WPT style test-wait class name". 

Looking at the diff, I don't see how it have could possibly caused such failures. But test result history does suggest that this started within a few revisions from that.

252480@main was the closest WebGL change before the failures started.

[Karl Rackler]

252480@main WebGL change does make sense.

[Karl Rackler]

Adding addition tests: 
webgl/2.0.0/deqp/functional/gles3/uniformbuffers/single_struct_array.html
webgl/2.0.0/deqp/functional/gles3/uniformapi/value_assigned.html
webgl/2.0.0/deqp/functional/gles3/uniformbuffers/single_basic_array.html

I have marked this test as a flaky failure/ while this issue is investigated.

[EWS]

Test gardening commit 254381@main (58911c9b8706): <https://commits.webkit.org/254381@main>

Reviewed commits have been landed. Closing PR #4260 and removing active labels.

[Karl Rackler]

adding additional test:
webgl/2.0.0/deqp/functional/gles3/uniformbuffers/single_struct.html

[EWS]

Test gardening commit 254441@main (f15b8ea18788): <https://commits.webkit.org/254441@main>

Reviewed commits have been landed. Closing PR #4310 and removing active labels.

[Karl Rackler]

*** This bug has been marked as a duplicate of bug 244979 ***