There are 22 API tests failing (only) on Big Sur bots with the following output: File name unavailable Unknown C++ exception thrown in the test body. This appears to have started with https://trac.webkit.org/changeset/271691 Here are the affected tests: TestWebKitAPI.CloseWebViewDuringEnterFullscreen.VideoFullscreen TestWebKitAPI.WKWebViewCloseAllMediaPresentations.ElementFullscreen TestWebKitAPI.WKWebViewTitlebarSeparatorTests.ScrollWithTitlebarAdjacency TestWebKitAPI.CloseWebViewAfterEnterFullscreen.VideoFullscreen TestWebKitAPI.WKWebViewTitlebarSeparatorTests.ChangeViewVisibility TestWebKitAPI.TopContentInset.AutomaticAdjustment TestWebKitAPI.TopContentInset.AutomaticAdjustmentDisabled TestWebKitAPI.ExitFullscreenOnEnterPiP.VideoFullscreen TestWebKitAPI.TopContentInset.Fullscreen TestWebKitAPI.WKWebViewCloseAllMediaPresentations.VideoFullscreen TestWebKitAPI.Fullscreen.Focus TestWebKitAPI.WKWebViewTitlebarSeparatorTests.BackForwardCache TestWebKitAPI.WKWebViewTitlebarSeparatorTests.ScrollWithoutTitlebarAdjacency TestWebKitAPI.CloseWebViewAfterEnterFullscreen.ElementFullscreen TestWebKitAPI.WKWebView.PrepareForMoveToWindowThenWindowDeallocBeforeMoving TestWebKitAPI.Fullscreen.WKViewDelegate TestWebKitAPI.WKWebViewTitlebarSeparatorTests.ChangeTitlebarAdjacency TestWebKitAPI.Fullscreen.Delegate TestWebKitAPI.ExitFullscreenOnEnterPiP.ElementFullscreen TestWebKitAPI.Fullscreen.PointerLeave TestWebKitAPI.CloseWebViewDuringEnterFullscreen.ElementFullscreen TestWebKitAPI.WKWebViewTitlebarSeparatorTests.NavigationResetsTitlebarAppearance https://build.webkit.org/builders/Apple-BigSur-Release-WK2-Tests/builds/1077/steps/run-api-tests/logs/stdio
<rdar://problem/73462770>
I checked two of the bots and didn't find any related crash logs.
This is reproducible for me by running a single test: $ run-api-tests TestWebKitAPI.WKWebViewTitlebarSeparatorTests.BackForwardCache Running tests LEAK: 1 WebProcessPool LEAK: 1 WebPageProxy File name unavailable Unknown C++ exception thrown in the test body. TestWebKitAPI.WKWebViewTitlebarSeparatorTests.BackForwardCache Failed Ran 1 tests of 1 with 0 successful ------------------------------ Test suite failed Failed TestWebKitAPI.WKWebViewTitlebarSeparatorTests.BackForwardCache LEAK: 1 WebProcessPool LEAK: 1 WebPageProxy File name unavailable Unknown C++ exception thrown in the test body.
Created attachment 418083 [details] Revert r271691
Reverting, while I investigate the underlying cause.
Committed r271713: <https://trac.webkit.org/changeset/271713> All reviewed patches have been landed. Closing bug and clearing flags on attachment 418083 [details].