258332 2023-06-20 18:00:09 -0700 REGRESISON(265142@Main): [ Debug iOS, macOS x86_64] imported/w3c/web-platform-tests/webcodecs/videoFrame-construction.crossOriginSource.sub.html is a constant crash 2023-06-22 08:55:29 -0700 1 1 1 Unclassified WebKit Media WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=257749 InRadar P2 Normal --- 1 jenner youennf eric.carlson webkit-bot-watchers-bugzilla webkit-bug-importer youennf oldest_to_newest 1962700 0 jenner 2023-06-20 18:00:09 -0700 imported/w3c/web-platform-tests/webcodecs/videoFrame-construction.crossOriginSource.sub.html is a constant crash on debug iOS, and debug macOS but only on Intel for Mac. HISTORY: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebcodecs%2FvideoFrame-construction.crossOriginSource.sub.html CRASHLOG URL: https://build.webkit.org/results/Apple-Ventura-Debug-WK2-Tests/265332@main%20(2488)/imported/w3c/web-platform-tests/webcodecs/videoFrame-construction.crossOriginSource.sub-crash-log.txt CRASHLOG TEXT: SHOULD NEVER BE REACHED /Volumes/Data/worker/Apple-Ventura-Debug-Build/build/Source/WebCore/platform/VideoPixelFormat.cpp(49) : WebCore::VideoPixelFormat WebCore::convertVideoFramePixelFormat(uint32_t, bool) 1 0x2a8daa519 WTFCrash 2 0x25b1e928b WTFCrashWithInfo(int, char const*, char const*, int) 3 0x25fa2caee WebCore::convertVideoFramePixelFormat(unsigned int, bool) 4 0x25ddfe208 WebCore::WebCodecsVideoFrame::initializeFrameFromOtherFrame(WebCore::ScriptExecutionContext&, WTF::Ref<WebCore::VideoFrame, WTF::RawPtrTraits<WebCore::VideoFrame>>&&, WebCore::WebCodecsVideoFrame::Init&&) 5 0x25de23586 WebCore::WebCodecsVideoFrame::create(WebCore::ScriptExecutionContext&, std::__1::variant<WTF::RefPtr<WebCore::HTMLImageElement, WTF::RawPtrTraits<WebCore::HTMLImageElement>, WTF::DefaultRefDerefTraits<WebCore::HTMLImageElement>>, WTF::RefPtr<WebCore::SVGImageElement, WTF::RawPtrTraits<WebCore::SVGImageElement>, WTF::DefaultRefDerefTraits<WebCore::SVGImageElement>>, 1962701 1 webkit-bug-importer 2023-06-20 18:01:07 -0700 <rdar://problem/111073090> 1962705 2 jenner 2023-06-20 18:12:19 -0700 I have marked an expectation for this test here: https://commits.webkit.org/265340@main I was also able to reproduce the crash at iOS 16 Debug ToT running the test as follows: Run-webkit-tests --iOS-simulator imported/w3c/web-platform-tests/webcodecs/videoFrame-construction.crossOriginSource.sub.html I verified that the same crash is seen on Intel Mac Debug, and iOS Debug. I have also bisected to a specific regression point. 265142@main appears to have broken this test, causing it to crash. I set my checkout to 265141@main, and re-ran the test at the same iOS16 Debug ToT build and the crash did not reproduce. I then updated the checkout to 265142@main, and re-ran the test again and the crashing returned. 1963029 3 youennf 2023-06-22 04:49:03 -0700 Pull request: https://github.com/WebKit/WebKit/pull/15192 1963057 4 ews-feeder 2023-06-22 08:55:27 -0700 Committed 265405@main (156e8c02d46b): <https://commits.webkit.org/265405@main> Reviewed commits have been landed. Closing PR #15192 and removing active labels.