Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. Installation and Deployment
  4. Qt 5.9.4 OpenGL examples crash
Forum Updated to NodeBB v4.3 + New Features

Qt 5.9.4 OpenGL examples crash

Scheduled Pinned Locked Moved Unsolved Installation and Deployment
19 Posts 3 Posters 6.8k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • F Offline
    F Offline
    fatih.erol
    wrote on last edited by
    #10

    sorry. i meant Qt 5.3.2 package comes from Arch Linux official site, so, it is built and prepared by someone else using respective tools on a i686 development system or chroot environment.

    I downloaded Qt 5.9.4 from download.qt.io, and cross-compiled it myself.

    1 Reply Last reply
    0
    • F Offline
      F Offline
      fatih.erol
      wrote on last edited by fatih.erol
      #11

      I wonder whether these are relevant:
      https://bugreports.qt.io/browse/QTBUG-64587
      https://bugreports.qt.io/browse/QTBUG-59636

      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #12

        The first one is not implemented and the second is fixed for 5.9.5. You can already test that by building from git.

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply
        1
        • F Offline
          F Offline
          fatih.erol
          wrote on last edited by
          #13

          Update on this issue:

          • Qt 5.3.2 built on the 32-bit system : opengl examples run successfully.
          • Qt 5.9.3 built on the 32-bit system : legacy opengl examples run successfully. cube/hellogl2/texture crashes.
          • Qt 5.9.4 cross-compiled for the 32-bit system : legacy opengl examples run successfully. cube/hellogl2/texture crashes.
          • Qt 5.10.1 cross-compiled for the 32-bit system : legacy opengl examples run successfully. cube/hellogl2/texture crashes.

          I haven't managed to cross-compile 5.3.2 yet, to confirm that cross-compilation works properly.
          Here is the stack trace from the crashed cube example application for Qt 5.9.4:

          (gdb) run
          Starting program: /home/root/opengl/cube/cube 
          warning: Could not load shared library symbols for linux-gate.so.1.
          Do you need "set solib-search-path" or "set sysroot"?
          [Thread debugging using libthread_db enabled]
          Using host libthread_db library "/usr/lib/libthread_db.so.1".
          [New Thread 0xb46bab40 (LWP 585)]
          pci id for fd 6: 8086:8108, driver (null)
          
          Program received signal SIGSEGV, Segmentation fault.
          0xb38ce7df in ?? () from /lib/libEMGDOGL.so
          (gdb) thread apply all backtrace
          
          Thread 2 (Thread 0xb46bab40 (LWP 585)):
          #0  0xb7ffd428 in __kernel_vsyscall ()
          #1  0xb6a963fb in poll () from /usr/lib/libc.so.6
          #2  0xb4df8f1d in ?? () from /usr/lib/libxcb.so.1
          #3  0xb4dfaf6b in xcb_wait_for_event () from /usr/lib/libxcb.so.1
          #4  0xb4993703 in ?? () from /usr/lib/libQt5XcbQpa.so.5
          #5  0xb6ddcfb1 in ?? () from /usr/lib/libQt5Core.so.5
          #6  0xb6cd61a6 in start_thread () from /usr/lib/libpthread.so.0
          #7  0xb6aa0e9e in clone () from /usr/lib/libc.so.6
          
          Thread 1 (Thread 0xb4c4c740 (LWP 581)):
          #0  0xb38ce7df in ?? () from /lib/libEMGDOGL.so
          #1  0xb38cee9f in ?? () from /lib/libEMGDOGL.so
          #2  0xb38cdbf1 in ?? () from /lib/libEMGDOGL.so
          #3  0xb38cf44b in ?? () from /lib/libEMGDOGL.so
          #4  0xb38cf9d8 in ?? () from /lib/libEMGDOGL.so
          #5  0xb38d04e8 in ?? () from /lib/libEMGDOGL.so
          #6  0xb385cc81 in ?? () from /lib/libEMGDOGL.so
          #7  0xb38e7b76 in pvroglDrawArrays () from /lib/libEMGDOGL.so
          #8  0xb76ad8b7 in ?? () from /usr/lib/libQt5Gui.so.5
          #9  0xb764d379 in ?? () from /usr/lib/libQt5Gui.so.5
          #10 0xb764dadc in QPlatformBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, QOpenGLContext*, bool) () from /usr/lib/libQt5Gui.so.5
          #11 0xb49b0686 in ?? () from /usr/lib/libQt5XcbQpa.so.5
          #12 0xb79ae3c7 in ?? () from /usr/lib/libQt5Widgets.so.5
          #13 0xb79afa09 in ?? () from /usr/lib/libQt5Widgets.so.5
          #14 0xb79b104d in ?? () from /usr/lib/libQt5Widgets.so.5
          #15 0xb79b17f2 in ?? () from /usr/lib/libQt5Widgets.so.5
          #16 0xb79cbd37 in QWidgetPrivate::syncBackingStore(QRegion const&) () from /usr/lib/libQt5Widgets.so.5
          #17 0xb7a012ea in ?? () from /usr/lib/libQt5Widgets.so.5
          #18 0xb7a01e1a in ?? () from /usr/lib/libQt5Widgets.so.5
          #19 0xb79a0f4a in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
          #20 0xb79a8d2c in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
          #21 0xb6fa396c in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
          #22 0xb73690e2 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/libQt5Gui.so.5
          #23 0xb7369df9 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/libQt5Gui.so.5
          #24 0xb7343cec in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Gui.so.5
          #25 0xb4a0298e in ?? () from /usr/lib/libQt5XcbQpa.so.5
          #26 0xb5019ba4 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
          #27 0xb5019ec9 in ?? () from /usr/lib/libglib-2.0.so.0
          #28 0xb5019f96 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
          #29 0xb6ff64b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
          #30 0xb4a02b61 in ?? () from /usr/lib/libQt5XcbQpa.so.5
          #31 0xb6fa13a6 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
          #32 0xb6fa17fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
          #33 0xb6faa796 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
          #34 0xb735f1f1 in QGuiApplication::exec() () from /usr/lib/libQt5Gui.so.5
          #35 0xb79a0ea4 in QApplication::exec() () from /usr/lib/libQt5Widgets.so.5
          #36 0x0804ad69 in main ()
          (gdb) continue
          Continuing.
          [Thread 0xb46bab40 (LWP 585) exited]
          
          Program terminated with signal SIGSEGV, Segmentation fault.
          The program no longer exists.
          (gdb)
          
          1 Reply Last reply
          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #14

            Do you also have that with 5.9.5/5.11 Beta ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            1 Reply Last reply
            0
            • F Offline
              F Offline
              fatih.erol
              wrote on last edited by
              #15

              I haven't tested with 5.9.5 and 5.11, checked only the official releases under https://download.qt.io.

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #16

                My bad, I'm a bit early for the 5.9.5 release which should happen during March.

                The beta can be downloaded from the development_releases subfolder.

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                1 Reply Last reply
                0
                • F Offline
                  F Offline
                  fatih.erol
                  wrote on last edited by
                  #17

                  I tried building 5.11.0-beta1, but it fails (I guess, since I have an older mesa-libgl):

                  qeglfskmsgbmwindow.cpp: In member function ‘virtual void QEglFSKmsGbmWindow::resetSurface()’:
                  qeglfskmsgbmwindow.cpp:58:5: error: ‘PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC’ was not declared in this scope
                       PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC createPlatformWindowSurface = nullptr;
                       ^
                  qeglfskmsgbmwindow.cpp:61:9: error: ‘createPlatformWindowSurface’ was not declared in this scope
                           createPlatformWindowSurface = reinterpret_cast<PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC>(
                           ^
                  qeglfskmsgbmwindow.cpp:61:56: error: ‘PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC’ does not name a type
                           createPlatformWindowSurface = reinterpret_cast<PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC>(
                                                                          ^
                  qeglfskmsgbmwindow.cpp:65:9: error: ‘createPlatformWindowSurface’ was not declared in this scope
                       if (createPlatformWindowSurface) {
                           ^
                  Makefile:2994: recipe for target '.obj/qeglfskmsgbmwindow.o' failed
                  make[2]: *** [.obj/qeglfskmsgbmwindow.o] Error 1
                  
                  1 Reply Last reply
                  0
                  • F Offline
                    F Offline
                    fatih.erol
                    wrote on last edited by
                    #18

                    well, it looks like this is an EMGD<=>mesa<=>Qt issue.

                    • EMGD + mesa 10.1.0 + Qt 5.3.2: OK
                    • EMGD + mesa 10.1.0 + Qt 5.9.4: openGL examples cube/hellogl2/textures crash
                    • EMGD + mesa 10.3.0 + Qt 5.9.4: openGL examples cube/hellogl2/textures run, but EMGD hardware acceleration fails:
                    libGL: OpenDriver: trying /usr/lib/xorg/modules/dri/tls/emgd_dri.so
                    libGL: OpenDriver: trying /usr/lib/xorg/modules/dri/emgd_dri.so
                    libGL: dlopen /usr/lib/xorg/modules/dri/emgd_dri.so failed (/usr/lib/xorg/modules/dri/emgd_dri.so: undefined symbol: _glapi_Dispatch)
                    libGL error: unable to load driver: emgd_dri.so
                    libGL error: driver pointer missing
                    libGL error: failed to load driver: emgd
                    libGL: OpenDriver: trying /usr/lib/xorg/modules/dri/tls/swrast_dri.so
                    libGL: OpenDriver: trying /usr/lib/xorg/modules/dri/swrast_dri.so
                    libGL: Can't open configuration file /root/.drirc: No such file or directory.
                    libGL: Can't open configuration file /root/.drirc: No such file or directory.
                    

                    Any idea on how to get EMGD working with mesa 10.3.0?

                    # ldd -r /usr/lib/xorg/modules/dri/emgd_dri.so 
                    ldd: warning: you do not have execution permission for `/usr/lib/xorg/modules/dri/emgd_dri.so'
                    	linux-gate.so.1 (0xb775f000)
                    	libm.so.6 => /lib/libm.so.6 (0xb74d1000)
                    	libpthread.so.0 => /lib/libpthread.so.0 (0xb74b5000)
                    	libexpat.so.1 => /lib/libexpat.so.1 (0xb748c000)
                    	libdl.so.2 => /lib/libdl.so.2 (0xb7487000)
                    	libdrm.so.2 => /lib/libdrm.so.2 (0xb7478000)
                    	libEMGDOGL.so => /lib/libEMGDOGL.so (0xb71c7000)
                    	libEMGD2d.so => /lib/libEMGD2d.so (0xb71bf000)
                    	libstdc++.so.6 => /lib/libstdc++.so.6 (0xb70c9000)
                    	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb70ac000)
                    	libc.so.6 => /lib/libc.so.6 (0xb6ef4000)
                    	/usr/lib/ld-linux.so.2 (0xb7760000)
                    	libemgdsrv_um.so => /lib/libemgdsrv_um.so (0xb6ed1000)
                    undefined symbol: _glapi_Dispatch	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    undefined symbol: _glapi_Context	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    undefined symbol: _glapi_get_dispatch_table_size	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    undefined symbol: _glapi_get_dispatch	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    undefined symbol: _glapi_get_context	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    undefined symbol: _glapi_add_dispatch	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    undefined symbol: _glapi_set_context	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    undefined symbol: _glapi_set_dispatch	(/usr/lib/xorg/modules/dri/emgd_dri.so)
                    
                    # strings -a /usr/lib/libglapi.so | grep _glapi_Dispatch
                    _glapi_Dispatch
                    
                    1 Reply Last reply
                    0
                    • F Offline
                      F Offline
                      fatih.erol
                      wrote on last edited by fatih.erol
                      #19

                      so, any suggestions on how to make EMGD + mesa 10.1.0 + Qt 5.9.4 work?
                      Qt 5.3.2 works with the same combination.
                      When Qt 5.3.2 qtbase/examples/opengl is built against Qt 5.9.4, they work as well, except 'stereo buffers' in contextinfo example.
                      When Qt 5.9.4 qtbase/examples/opengl is built against Qt 5.9.4, examples such as cube, textures crash, and 'stereo buffers' in contextinfo fails as well.

                      1 Reply Last reply
                      0

                      • Login

                      • Login or register to search.
                      • First post
                        Last post
                      0
                      • Categories
                      • Recent
                      • Tags
                      • Popular
                      • Users
                      • Groups
                      • Search
                      • Get Qt Extensions
                      • Unsolved