App self-closes with no exception

Question

I have a store app that I have been converting to improve performance and responsiveness.

This has implied quite large changes to one of the App pages.

The app runs perfectly in the simulator but has a strange behaviour on a real device (Asus VivoTab RT).

On rotating the device, the app performs correctly all the code that deals with rotation and change of page, and then closes without warning and without giving an exception to the unhandled exception handler.

This happens with both the 8.0 and 8.1 vesions of the app.

I am quite baffled by this problem, since even stepping through the code one line at a time does not help. After the code for handling the rotation has completed, and the code that services the Layout_Updated has also completed, the app simply disappears from the device screen without stopping at any of the breakpoints set up for OnSuspens, OnUnhandledException etc.

Can somebody help?

Answer 1

It sounds like you can reproduce this under the debugger, so you should be able to catch the initial exception. Since you're not seeing it in managed code it's likely in native. Set the Debug properties for the project to Mixed mode rather than Managed only debugging and go to the Debug.Exceptions... dialog and turn on the "Thrown" exceptions for whatever you're hitting. Since you don't know for sure what it is you might need to turn it on for everything and then step through (or turn off) other handled exceptions as you hit them.

--Rob

Answer 2

I have tried your suggestion. I had to set debug to Native only because the Arm remorte debugger does not support mixed mode. Unfortunately the results do not point to any specific statement in my application, which at the time is trying to simply switch the screen from landscape to portrait. All the redrawing is done by using Visual States.

I get the following:

1. Five times this exception:

First-chance exception at 0x74EC8EE7 in EpubReader.exe: Microsoft C++ exception: _com_error at memory location 0x0431A810

with this call stack:

> KernelBase.dll!RaiseException() Unknown
  msvcrt.dll!_CxxThrowException() Unknown
  d3d11.dll!ThrowFailure(long) Unknown
  d3d11.dll!NDXGI::CDevice::CreateSurfaceInternal(struct IDXGISwapChainInternal *,struct IUseCounted2 *,struct IDXGISwapBufferInternal *,struct DXGI_SURFACE_DESC const *,unsigned int,unsigned int,unsigned int,unsigned int,void *,struct IDXGIResource * *) Unknown
  d3d11.dll!CDevice::CreateCompositionBuffer(unsigned int,unsigned int,enum DXGI_FORMAT,int,unsigned int,unsigned int,struct _GUID const &,void * *,void * *) Unknown
  dcomp.dll!CDxDevice::CreateCompositionBuffer(unsigned int,unsigned int,enum DXGI_FORMAT,int,unsigned int,unsigned int,void * *,struct IUnknown * *) Unknown
  dcomp.dll!CAtlasSurfacePool::CreateDeviceResources(void) Unknown
  dcomp.dll!CAtlasSurfacePool::Initialize() Unknown
  dcomp.dll!CAtlasSurfacePool::Create(class CSurfaceManager *,class SizeU const &,enum DXGI_FORMAT,bool,bool,class CAtlasSurfacePool * *) Unknown
  dcomp.dll!CDynamicPoolSet::AllocateDynamicPool(class CDynamicPool * *,class SizeU const &,enum DXGI_FORMAT,bool,bool) Unknown
  dcomp.dll!CSurfaceManager::RequestSurface() Unknown
  dcomp.dll!CBitmapInfoFront::Initialize() Unknown
  dcomp.dll!CBitmapInfoFront::Create(class CSurfaceFactory *,unsigned int,unsigned int,enum DXGI_FORMAT,enum DXGI_ALPHA_MODE,enum D2D1_EXTEND_MODE *,bool,struct IDCompositionSurface *,enum AtlasUseType,class CBitmapInfoFront * *) Unknown
  dcomp.dll!CCompositionSurface::Create() Unknown
  dcomp.dll!CSurfaceFactory::CreateSurface(unsigned int,unsigned int,enum DXGI_FORMAT,enum DXGI_ALPHA_MODE,struct IDCompositionSurface * *) Unknown
  dcomp.dll!CDevice::CreateSurface(unsigned int,unsigned int,enum DXGI_FORMAT,enum DXGI_ALPHA_MODE,struct IDCompositionSurface * *) Unknown
  Windows.UI.Xaml.dll!DCompSurface::InitializeSurface() Unknown
  Windows.UI.Xaml.dll!DCompSurface::Create() Unknown
  Windows.UI.Xaml.dll!DCompTreeHost::CreateSurface() Unknown
  Windows.UI.Xaml.dll!HWTextureManager::CreateTexture() Unknown
  Windows.UI.Xaml.dll!D2DTextDrawingContext::HWBuildGlyphRunTexture() Unknown
  Windows.UI.Xaml.dll!D2DTextDrawingContext::HWBuildGlyphRunTextures() Unknown
  Windows.UI.Xaml.dll!D2DTextDrawingContext::HWRender(class xvector<struct IDCompositionPrimitivePartner *> *,struct HWTextRenderParams const &,class SolidColorBrushClone *) Unknown
  Windows.UI.Xaml.dll!ParagraphDrawingContext::HWRenderContent() Unknown
  Windows.UI.Xaml.dll!ContainerDrawingContext::HWRenderContent() Unknown
  Windows.UI.Xaml.dll!CRichTextBlockOverflow::HWRenderContent(class xvector<struct IDCompositionPrimitivePartner *> *,struct HWTextRenderParams const &,class SolidColorBrushClone *) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildrenDefault(class CUIElement *,struct HWRenderParams const &,unsigned int) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderChildren(class CUIElement *,struct HWRenderParams const &) Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderContentAndChildren() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderProperties() Unknown
  Windows.UI.Xaml.dll!HWWalk::Render() Unknown
  Windows.UI.Xaml.dll!HWWalk::RenderRootImpl(class CUIElement *,class CRenderTarget *,unsigned int,unsigned int,float,class TransformAndClipStack *) Unknown
  Windows.UI.Xaml.dll!CCoreServices::RenderWalk(class HWWalk *,struct ICoreRenderTarget *,class VisualTree *,unsigned int,unsigned int) Unknown
  Windows.UI.Xaml.dll!CCoreServices::NWDrawTree() Unknown
  Windows.UI.Xaml.dll!CCoreServices::NWDrawMainTree() Unknown
  Windows.UI.Xaml.dll!CWindowRenderTarget::Draw() Unknown
  Windows.UI.Xaml.dll!CXcpBrowserHost::OnTick() Unknown
  Windows.UI.Xaml.dll!CXcpDispatcher::Tick() Unknown
  Windows.UI.Xaml.dll!CXcpDispatcher::OnReentrancyProtectedWindowMessage() Unknown
  Windows.UI.Xaml.dll!CXcpDispatcher::WindowProc() Unknown
  user32.dll!UserCallWinProcCheckWow() Unknown
  user32.dll!DispatchMessageWorker() Unknown
  Windows.UI.dll!Windows::UI::Core::CDispatcher::WaitAndProcessMessages(void * hEventWait) Line 321 C++
  Windows.UI.dll!Windows::UI::Core::CDispatcher::ProcessEvents(Windows::UI::Core::CoreProcessEventsOption options) Line 390 C++
  Windows.UI.Xaml.dll!CJupiterWindow::RunCoreWindowMessageLoop(void) Unknown
  Windows.UI.Xaml.dll!CJupiterControl::RunMessageLoop(void) Unknown
  Windows.UI.Xaml.dll!DirectUI::DXamlCore::RunMessageLoop(void) Unknown
  Windows.UI.Xaml.dll!DirectUI::FrameworkView::Run(void) Unknown
  twinapi.appcore.dll!Windows::ApplicationModel::Core::CoreApplicationView::Run(void) Unknown
  twinapi.appcore.dll!XWinRT::SecureVersionTag::TagManager::ChangeVersion(void) Unknown
  SHCore.dll!CRandomAccessStreamOverStream::GetStream(struct IStream * *) Unknown
  kernel32.dll!BaseThreadInitThunk() Unknown
  ntdll.dll!RtlUserThreadStart() Unknown

followed by 5 times this exception:

Unhandled exception at 0x7524FB8F (combase.dll) in EpubReader.exe: 0xC000027B: An application-internal exception has occurred (parameters: 0x669ED758, 0x00000001).

with this call stack:

> kernel32.dll!RaiseFailFastException() Unknown
  combase.dll!RoFailFastWithErrorContextInternal2(long,unsigned long,struct _STOWED_EXCEPTION_INFORMATION_V2 * * const) Unknown
  combase.dll!RoFailFastWithErrorContextInternal(long,unsigned long,struct _STOWED_EXCEPTION_INFORMATION_V1 * * const) Unknown
  Windows.UI.Xaml.dll!CCoreServices::NWDrawTree() Unknown
  Windows.UI.Xaml.dll!CCoreServices::NWDrawMainTree() Unknown
  Windows.UI.Xaml.dll!CWindowRenderTarget::Draw() Unknown
  Windows.UI.Xaml.dll!CXcpBrowserHost::OnTick() Unknown
  Windows.UI.Xaml.dll!CXcpDispatcher::Tick() Unknown
  Windows.UI.Xaml.dll!CXcpDispatcher::OnReentrancyProtectedWindowMessage() Unknown
  Windows.UI.Xaml.dll!CXcpDispatcher::WindowProc() Unknown
  user32.dll!UserCallWinProcCheckWow() Unknown
  user32.dll!DispatchMessageWorker() Unknown
  Windows.UI.dll!Windows::UI::Core::CDispatcher::WaitAndProcessMessages(void * hEventWait) Line 321 C++
  Windows.UI.dll!Windows::UI::Core::CDispatcher::ProcessEvents(Windows::UI::Core::CoreProcessEventsOption options) Line 390 C++
  Windows.UI.Xaml.dll!CJupiterWindow::RunCoreWindowMessageLoop(void) Unknown
  Windows.UI.Xaml.dll!CJupiterControl::RunMessageLoop(void) Unknown
  Windows.UI.Xaml.dll!DirectUI::DXamlCore::RunMessageLoop(void) Unknown
  Windows.UI.Xaml.dll!DirectUI::FrameworkView::Run(void) Unknown
  twinapi.appcore.dll!Windows::ApplicationModel::Core::CoreApplicationView::Run(void) Unknown
  twinapi.appcore.dll!XWinRT::SecureVersionTag::TagManager::ChangeVersion(void) Unknown
  SHCore.dll!CRandomAccessStreamOverStream::GetStream(struct IStream * *) Unknown
  kernel32.dll!BaseThreadInitThunk() Unknown
  ntdll.dll!RtlUserThreadStart() Unknown