[Webkit-unassigned] [Bug 217490] New: [WinCairo] ASSERTION FAILED: m_renderingUpdateRemainingSteps.last().isEmpty() in WebCore::Page::finalizeRenderingUpdate since r268075

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217490

            Bug ID: 217490
           Summary: [WinCairo] ASSERTION FAILED:
                    m_renderingUpdateRemainingSteps.last().isEmpty() in
                    WebCore::Page::finalizeRenderingUpdate since r268075
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

[WinCairo] ASSERTION FAILED: m_renderingUpdateRemainingSteps.last().isEmpty() in WebCore::Page::finalizeRenderingUpdate since r268075

WinCairo WK2 debug build fails the assertion
WinCairo WK1 debug build doesn't fail.

Bug 216726 – Redundant rendering updates can be scheduled from inside Page::updateRendering()

ASSERTION FAILED: m_renderingUpdateRemainingSteps.last().isEmpty()
C:\home\webkit\gb\Source\WebCore\page/Page.cpp(1655) : WebCore::Page::finalizeRenderingUpdate

Callstack:

> WTF.dll!WTFCrash() Line 295	C++
> WebKit2.dll!WTFCrashWithInfo(int __formal, const char * __formal, const char * __formal, int __formal) Line 672	C++
> WebKit2.dll!WebCore::Page::finalizeRenderingUpdate(WTF::OptionSet<enum WebCore::FinalizeRenderingUpdateFlags> flags) Line 1655	C++
> WebKit2.dll!WebKit::WebPage::finalizeRenderingUpdate(WTF::OptionSet<enum WebCore::FinalizeRenderingUpdateFlags> flags) Line 3899	C++
> WebKit2.dll!WebKit::DrawingAreaCoordinatedGraphics::display(WebKit::UpdateInfo & updateInfo) Line 756	C++
> WebKit2.dll!WebKit::DrawingAreaCoordinatedGraphics::display() Line 717	C++
> WebKit2.dll!WebKit::DrawingAreaCoordinatedGraphics::displayTimerFired() Line 692	C++
> WebKit2.dll!WTF::RunLoop::Timer<WebKit::DrawingAreaCoordinatedGraphics>::fired() Line 178	C++
> WTF.dll!WTF::RunLoop::TimerBase::timerFired() Line 165	C++
> WTF.dll!WTF::RunLoop::wndProc(HWND__ * hWnd, unsigned int message, unsigned __int64 wParam, __int64 lParam) Line 60	C++
> WTF.dll!WTF::RunLoop::RunLoopWndProc(HWND__ * hWnd, unsigned int message, unsigned __int64 wParam, __int64 lParam) Line 39	C++
> user32.dll!00007ffce3dc5c7d()	Unknown
> user32.dll!00007ffce3dc5672()	Unknown
> WTF.dll!WTF::RunLoop::run() Line 74	C++
> WebKit2.dll!WebKit::AuxiliaryProcessMain<WebKit::WebProcess,WebKit::WebProcessMainWin>(int argc, char * * argv) Line 69	C++
> WebKit2.dll!WebKit::WebProcessMain(int argc, char * * argv) Line 58	C++
> WebKitWebProcess.exe!main(int argc, char * * argv) Line 35	C++
> [Inline Frame] WebKitWebProcess.exe!invoke_main() Line 78	C++
> WebKitWebProcess.exe!__scrt_common_main_seh() Line 288	C++
> kernel32.dll!00007ffce5b67bd4()	Unknown
> ntdll.dll!00007ffce5d6ce51()	Unknown

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