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  1. Qt
  2. QTBUG-66243

Deadlock when changing surface of surface selector in framegraph.

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 5.10.1
    • Fix Version/s: 5.10.1
    • Component/s: Qt3D
    • Labels:
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      Description

      This happened after the OnDemand fixes and addition of barriers.

      When setting the framegraph surface to nullptr and then resetting it to a valid surface, nothing happens. The render thread is hanging in Renderer::waitForRenderJobs(), so I assume it is a deadlock. 

      This is easy to reproduce. I modified the basicshapes-cpp example by adding two buttons, one that sets the surface in the framegraph surface selector to null, the other to the original surface. 

       

        Attachments

        1. main.cpp
          8 kB
          Harald Vistnes
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            People

            • Assignee:
              dragly Svenn-Arne Dragly
              Reporter:
              harald Harald Vistnes
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              Dates

              • Created:
                Updated:
                Resolved:

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