[Webkit-unassigned] [Bug 242737] New: [WinCairo] ASSERTION FAILED: m_webPage.bounds().contains(bounds) in WebKit::DrawingAreaWC::sendUpdateNonAC

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=242737

            Bug ID: 242737
           Summary: [WinCairo] ASSERTION FAILED:
                    m_webPage.bounds().contains(bounds) in
                    WebKit::DrawingAreaWC::sendUpdateNonAC
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com
                CC: kkinnunen at apple.com

[WinCairo] ASSERTION FAILED: m_webPage.bounds().contains(bounds) in WebKit::DrawingAreaWC::sendUpdateNonAC

Sometimes I'm observing the following assertion failure while using WinCairo MiniBrowser (Debug build).

ASSERTION FAILED: m_webPage.bounds().contains(bounds)
C:\home\webkit\gc\Source\WebKit\WebProcess\WebPage\wc\DrawingAreaWC.cpp(300) : WebKit::DrawingAreaWC::sendUpdateNonAC
1   00007FFBAFFC249B WTFCrash
2   00007FFB49BEA03E WTFCrashWithInfo
3   00007FFB49CED0A2 WebKit::DrawingAreaWC::sendUpdateNonAC
4   00007FFB49CECC4F WebKit::DrawingAreaWC::updateRendering
5   00007FFB49CF255A std::invoke<void (__cdecl WebKit::DrawingAreaWC::*&)(void),WebKit::DrawingAreaWC * &>
6   00007FFB49CF08EE std::_Invoker_ret<std::_Unforced>::_Call<void (__cdecl WebKit::DrawingAreaWC::*&)(void),WebKit::DrawingAreaWC * &>
7   00007FFB49CF0951 std::_Call_binder<std::_Unforced,0,void (__cdecl WebKit::DrawingAreaWC::*)(void),std::tuple<WebKit::DrawingAreaWC *>,std::tuple<> >
8   00007FFB49CF08AB std::_Binder<std::_Unforced,void (__cdecl WebKit::DrawingAreaWC::*&)(void),WebKit::DrawingAreaWC *>::operator()<>
9   00007FFB49CF560B WTF::Detail::CallableWrapper<std::_Binder<std::_Unforced,void (__cdecl WebKit::DrawingAreaWC::*&)(void),WebKit::DrawingAreaWC *>,void>::call
10  00007FFB49C75594 WTF::Function<void __cdecl(void)>::operator()
11  00007FFB49CEB04B WebCore::Timer::fired
12  00007FFB4F1FC178 WebCore::ThreadTimers::sharedTimerFiredInternal
13  00007FFB4F2004DF `WebCore::ThreadTimers::setSharedTimer'::`8'::<lambda_1>::operator()
14  00007FFB4F20191B WTF::Detail::CallableWrapper<`WebCore::ThreadTimers::setSharedTimer'::`8'::<lambda_1>,void>::call
15  00007FFB49C75594 WTF::Function<void __cdecl(void)>::operator()
16  00007FFB4F1B2CE7 WebCore::MainThreadSharedTimer::fired
17  00007FFB4BC165EA WebCore::TimerWindowWndProc
18  00007FFC219BE858 CallWindowProcW
19  00007FFC219BE299 DispatchMessageW
20  00007FFBB014BE86 WTF::RunLoop::run
21  00007FFB49D0A26B WebKit::AuxiliaryProcessMainBase<WebKit::WebProcess,1>::run
22  00007FFB49D0A033 WebKit::AuxiliaryProcessMain<WebKit::WebProcessMainWin>
23  00007FFB49D09E75 WebKit::WebProcessMain
24  00007FF75413101D main
25  00007FF75413125C __scrt_common_main_seh
26  00007FFC20957034 BaseThreadInitThunk
27  00007FFC21BE2651 RtlUserThreadStart
Exception thrown at 0x00007FFBAFFC24A0 (WTF.dll) in WebKitWebProcess.exe: 0xC0000005: Access violation writing location 0x00000000BBADBEEF.

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