[Webkit-unassigned] [Bug 218350] New: ASSERTION FAILED: didNeedLayout || logicalHeight() == oldHeight in WebCore::RenderBlockFlow::ensureLineBoxes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=218350

            Bug ID: 218350
           Summary: ASSERTION FAILED: didNeedLayout || logicalHeight() ==
                    oldHeight in WebCore::RenderBlockFlow::ensureLineBoxes
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

The following three API tests are failing an assertion on iOS Debug bots:
TestWebKitAPI.DragAndDropTests.LinkToInput
TestWebKitAPI.DragAndDropTests.BackgroundImageLinkToInput
TestWebKitAPI.DragAndDropTests.ImageInLinkToInput

        ASSERTION FAILED: didNeedLayout || logicalHeight() == oldHeight
        ./rendering/RenderBlockFlow.cpp(3689) : void WebCore::RenderBlockFlow::ensureLineBoxes()
        1   0x586f375a9 WTFCrash
        2   0x58ed18b2b WTFCrashWithInfo(int, char const*, char const*, int)
        3   0x59321fad9 WebCore::RenderBlockFlow::ensureLineBoxes()
        4   0x591c0fbfa WebCore::Position::ensureLineBoxes() const
        5   0x591dd1a64 WebCore::RenderedPosition::RenderedPosition(WebCore::Position const&, WebCore::Affinity)
        6   0x591dd1bab WebCore::RenderedPosition::RenderedPosition(WebCore::Position const&, WebCore::Affinity)
        7   0x591dd1b66 WebCore::RenderedPosition::RenderedPosition(WebCore::VisiblePosition const&)
        8   0x591e4d197 WebCore::startPositionForLine(WebCore::VisiblePosition const&, WebCore::LineEndpointComputationMode)
        9   0x591e3c7c0 WebCore::startOfLine(WebCore::VisiblePosition const&, WebCore::LineEndpointComputationMode, bool*)
        10  0x591e3717a WebCore::startOfLine(WebCore::VisiblePosition const&)
        11  0x591e30ee0 WebCore::inSameLine(WebCore::VisiblePosition const&, WebCore::VisiblePosition const&)
        12  0x591e30872 WebCore::VisiblePosition::VisiblePosition(WebCore::Position const&, WebCore::Affinity)
        13  0x591e30f7b WebCore::VisiblePosition::VisiblePosition(WebCore::Position const&, WebCore::Affinity)
        14  0x591e3c3b4 WebCore::nextBoundary(WebCore::VisiblePosition const&, unsigned int (*)(WTF::StringView, unsigned int, WebCore::BoundarySearchContextAvailability, bool&))
        15  0x591e3c5b0 WebCore::nextWordPosition(WebCore::VisiblePosition const&)
        16  0x591d77700 WebCore::Editor::updateMarkersForWordsAffectedByEditing(bool)
        17  0x591d773af WebCore::Editor::respondToChangedContents(WebCore::VisibleSelection const&)
        18  0x591d7a79c WebCore::Editor::appliedEditing(WebCore::CompositeEditCommand&)
        19  0x591d316a3 WebCore::CompositeEditCommand::didApplyCommand()
        20  0x591d1e9d5 WebCore::CompositeEditCommand::apply()
        21  0x59291fb57 WebCore::DragController::concludeEditDrag(WebCore::DragData const&)
        22  0x59291e2d0 WebCore::DragController::performDragOperation(WebCore::DragData const&)
        23  0x571bed88a WebKit::WebPage::performDragControllerAction(WebKit::DragControllerAction, WebCore::DragData const&, WebKit::SandboxExtension::Handle&&, WebKit::SandboxExtension::HandleArray&&)
        24  0x571cd50ce void IPC::callMemberFunctionImpl<WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::DragControllerAction, WebCore::DragData const&, WebKit::SandboxExtension::Handle&&, WebKit::SandboxExtension::HandleArray&&), std::__1::tuple<WebKit::DragControllerAction, WebCore::DragData, WebKit::SandboxExtension::Handle, WebKit::SandboxExtension::HandleArray>, 0ul, 1ul, 2ul, 3ul>(WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::DragControllerAction, WebCore::DragData const&, WebKit::SandboxExtension::Handle&&, WebKit::SandboxExtension::HandleArray&&), std::__1::tuple<WebKit::DragControllerAction, WebCore::DragData, WebKit::SandboxExtension::Handle, WebKit::SandboxExtension::HandleArray>&&, std::__1::integer_sequence<unsigned long, 0ul, 1ul, 2ul, 3ul>)
        25  0x571cd2b20 void IPC::callMemberFunction<WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::DragControllerAction, WebCore::DragData const&, WebKit::SandboxExtension::Handle&&, WebKit::SandboxExtension::HandleArray&&), std::__1::tuple<WebKit::DragControllerAction, WebCore::DragData, WebKit::SandboxExtension::Handle, WebKit::SandboxExtension::HandleArray>, std::__1::integer_sequence<unsigned long, 0ul, 1ul, 2ul, 3ul> >(std::__1::tuple<WebKit::DragControllerAction, WebCore::DragData, WebKit::SandboxExtension::Handle, WebKit::SandboxExtension::HandleArray>&&, WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::DragControllerAction, WebCore::DragData const&, WebKit::SandboxExtension::Handle&&, WebKit::SandboxExtension::HandleArray&&))
        26  0x571c5900e void IPC::handleMessage<Messages::WebPage::PerformDragControllerAction, WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::DragControllerAction, WebCore::DragData const&, WebKit::SandboxExtension::Handle&&, WebKit::SandboxExtension::HandleArray&&)>(IPC::Decoder&, WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::DragControllerAction, WebCore::DragData const&, WebKit::SandboxExtension::Handle&&, WebKit::SandboxExtension::HandleArray&&))
        27  0x571c4cca4 WebKit::WebPage::didReceiveWebPageMessage(IPC::Connection&, IPC::Decoder&)
        28  0x571bf0da2 WebKit::WebPage::didReceiveMessage(IPC::Connection&, IPC::Decoder&)
        29  0x57050ed31 IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::Decoder&)
        30  0x5716f6c77 WebKit::WebProcess::didReceiveMessage(IPC::Connection&, IPC::Decoder&)
        31  0x57012304a IPC::Connection::dispatchMessage(IPC::Decoder&)

https://results.webkit.org/?suite=api-tests&suite=api-tests&suite=api-tests&test=TestWebKitAPI.DragAndDropTests.LinkToInput&test=TestWebKitAPI.DragAndDropTests.BackgroundImageLinkToInput&test=TestWebKitAPI.DragAndDropTests.ImageInLinkToInput

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