305014 2026-01-06 15:00:38 -0800 REGRESSION(304987@main): Broke http/tests/webgpu/webgpu/web_platform/copyToTexture/video.html 2026-01-07 07:42:21 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 304740 1 jbedard ysuzuki webkit-bug-importer ysuzuki oldest_to_newest 2169821 0 jbedard 2026-01-06 15:00:38 -0800 After 305168@main, http/tests/webgpu/webgpu/web_platform/copyToTexture/video.html started failing. Seems likely to be a rebaseline. History: https://results.webkit.org/?suite=layout-tests&test=http/tests/webgpu/webgpu/web_platform/copyToTexture/video.html Build: https://build.webkit.org/#/builders/1716/builds/1009 2169822 1 webkit-bug-importer 2026-01-06 15:00:51 -0800 <rdar://problem/167652123> 2169825 2 jbedard 2026-01-06 15:03:47 -0800 Reproduction: run-webkit-tests --no-build --no-retry --no-show-results --exit-after-n-failures=1 --expect-pass --iterations=1000 --force --release http/tests/webgpu/webgpu/web_platform/copyToTexture/video.html 2169837 3 ryanhaddad 2026-01-06 15:22:04 -0800 Based on the history link, it looks like this started failing with https://commits.webkit.org/304987@main, no? 2169840 4 ryanhaddad 2026-01-06 15:33:48 -0800 diff: ``` --- /Volumes/Data/worker/Apple-Sonoma-Release-AppleSilicon-WK2-Tests/build/layout-test-results/http/tests/webgpu/webgpu/web_platform/copyToTexture/video-expected.txt +++ /Volumes/Data/worker/Apple-Sonoma-Release-AppleSilicon-WK2-Tests/build/layout-test-results/http/tests/webgpu/webgpu/web_platform/copyToTexture/video-actual.txt @@ -14,7 +14,6 @@ eventualExpectOK@http://127.0.0.1:8000/webgpu/common/framework/fixture.js:414:34 expectSinglePixelComparisonsAreOkInTexture@http://127.0.0.1:8000/webgpu/webgpu/texture_test_utils.js:238:21 @http://127.0.0.1:8000/webgpu/webgpu/web_platform/copyToTexture/video.spec.js:105:53 - @http://127.0.0.1:8000/webgpu/webgpu/web_platform/copyToTexture/video.spec.js:64:60 ``` `video.spec.js:64` appears to be an await function, so it seems related to 304987@main based on the commit message 2169841 5 ryanhaddad 2026-01-06 15:35:38 -0800 I don't see the test having failed on the PR for that commit, but it looks like the whole directory is marked as flaky so it isn't running on EWS (due to the --skip-failing-tests argument) LayoutTests/platform/mac-wk2/TestExpectations:2364:http/tests/webgpu/webgpu/web_platform/copyToTexture [ Pass Timeout ] 2169845 6 jbedard 2026-01-06 15:44:16 -0800 Yes, regression point is https://commits.webkit.org/304987@main, I fat-fingered the commit in the original report.