[Webkit-unassigned] [Bug 225371] New: REGRESSION: ASSERTION FAILED: !m_impl || !m_shouldEnableAssertions || m_impl->wasConstructedOnMainThread() == isMainThread() under WebCore::MediaPlayerPrivateAVFoundationObjC::createAVPlayer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=225371

            Bug ID: 225371
           Summary: REGRESSION: ASSERTION FAILED: !m_impl ||
                    !m_shouldEnableAssertions ||
                    m_impl->wasConstructedOnMainThread() == isMainThread()
                    under
                    WebCore::MediaPlayerPrivateAVFoundationObjC::createAVP
                    layer
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

The following API tests are asserting on iOS Simulator bots:

TestWebKitAPI.WebKitLegacy.AudioSessionCategoryIOS
TestWebKitAPI.WebKitLegacy.PreemptVideoFullscreen
TestWebKitAPI.WebKitLegacy.ScrollingDoesNotPauseMedia


        ASSERTION FAILED: !m_impl || !m_shouldEnableAssertions || m_impl->wasConstructedOnMainThread() == isMainThread()
        /Volumes/Data/worker/ios-simulator-14-debug/build/WebKitBuild/Debug-iphonesimulator/usr/local/include/wtf/WeakPtr.h(109) : T *WTF::WeakPtr<WebCore::MediaPlayerPrivateAVFoundationObjC, WTF::EmptyCounter>::operator->() const [T = WebCore::MediaPlayerPrivateAVFoundationObjC, Counter = WTF::EmptyCounter]
        1   0x1140a40b9 WTFCrash
        2   0x12c35128b WTFCrashWithInfo(int, char const*, char const*, int)
        3   0x12c436287 WTF::WeakPtr<WebCore::MediaPlayerPrivateAVFoundationObjC, WTF::EmptyCounter>::operator->() const
        4   0x12c7620aa WebCore::MediaPlayerPrivateAVFoundationObjC::createAVPlayer()::$_4::operator()(CMTime) const
        5   0x12c762069 invocation function for block in WebCore::MediaPlayerPrivateAVFoundationObjC::createAVPlayer()
        6   0x16598cd13 -[AVPeriodicTimebaseObserver _effectiveRateChanged]
        7   0x16598e0d9 __AVTimebaseObserver_timebaseNotificationCallback_block_invoke
        8   0x1128d732f _dispatch_call_block_and_release
        9   0x1128d8508 _dispatch_client_callout
        10  0x1128e4ff7 _dispatch_main_queue_callback_4CF
        11  0x11163adab __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
        12  0x11163562e __CFRunLoopRun
        13  0x1116346c6 CFRunLoopRunSpecific
        14  0x1110227b9 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
        15  0x10c42b0de TestWebKitAPI::Util::run(bool*)
        16  0x10bbe1fad TestWebKitAPI::WebKitLegacy_AudioSessionCategoryIOS_Test::TestBody()
        17  0x10c5e6bf4 void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)
        18  0x10c5bd46b void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)
        19  0x10c5bd3a3 testing::Test::Run()
        20  0x10c5be0e4 testing::TestInfo::Run()
        21  0x10c5bf205 testing::TestSuite::Run()
        22  0x10c5cda6a testing::internal::UnitTestImpl::RunAllTests()
        23  0x10c5eb4d4 bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)
        24  0x10c5cd42b bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)
        25  0x10c5cd2fd testing::UnitTest::Run()
        26  0x10c3d35f1 RUN_ALL_TESTS()
        27  0x10c3d3582 TestWebKitAPI::TestsController::run(int, char**)
        28  0x10c58f1c5 main
        29  0x112961409 start
        Child process terminated with signal 11: Segmentation fault


https://results.webkit.org/?suite=api-tests&suite=api-tests&suite=api-tests&test=TestWebKitAPI.WebKitLegacy.AudioSessionCategoryIOS&test=TestWebKitAPI.WebKitLegacy.PreemptVideoFullscreen&test=TestWebKitAPI.WebKitLegacy.ScrollingDoesNotPauseMedia

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