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  1. Qt
  2. QTBUG-136954

[D3D11] Access violation on QRhiD3D11::executeCommandBuffer (UpdateSubRes cmd)

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Details

    • Bug
    • Resolution: Unresolved
    • Not Evaluated
    • None
    • 6.8.3
    • Qt RHI
    • None
    • Various GPU's vendors/models
      Various Windows 10/11 build version
    • Windows

    Description

      Observing this when analyzing our users' crashes in Sentry.

      It's never reproduced in our testing environment, so I have no idea about step/preconditions.

       

      Unhandled exception at 0x00007FFBC65398A0 (d3d11.dll) in b04f204a-c693-499c-95df-b29ad6f85ae1.dmp: 0xC0000005: Access violation reading location 0x000000000000010C.
      

      Call stack:

       	d3d11.dll!CContext::TID3D11DeviceContext_UpdateSubresource_<1>()	Unknown
      >	Qt6Gui.dll!QRhiD3D11::executeCommandBuffer(QD3D11CommandBuffer * cbD) Line 2914	C++
       	Qt6Gui.dll!QRhiD3D11::endFrame(QRhiSwapChain * swapChain, QFlags<enum QRhi::EndFrameFlag> flags) Line 1402	C++
       	Qt6Gui.dll!QRhi::endFrame(QRhiSwapChain * swapChain, QFlags<enum QRhi::EndFrameFlag> flags) Line 10870	C++
       	Qt6Quick.dll!QSGRenderThread::syncAndRender() Line 772	C++
       	Qt6Quick.dll!QSGRenderThread::run() Line 979	C++
       	Qt6Core.dll!QThreadPrivate::start(void * arg) Line 273	C++
       	[External Code]	
      

      There are also a lot of warnings in affected user logs (we collect it as Senty's breadcrumbs), such us:

      Failed to build uniform buffer of size 128 bytes
      Failed to build uniform buffer of size 76 bytes
      Failed to build texture for QSGPlainTexture (size 14x16)
      Failed to (re)build vertex/index buffer of size 168
      Failed to (re)build vertex/index buffer of size 10000
      Failed to create distance field glyph cache
      etc.
      

       

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            lagocs Laszlo Agocs
            studiosus Vladimir Belyavsky
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            Dates

              Created:
              Updated:

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