[vtkusers] VTk/Examples/GUI/Qt/GraphicsView crashed on win7
Clinton Stimpson
clinton at elemtech.com
Tue May 1 10:40:55 EDT 2012
Here's a fix for this problem.
http://review.source.kitware.com/#/c/5427/
Clint
On Apr 29, 2012, at 4:12 PM, Luke wrote:
> I am getting a seg fault with the example qtgraphicsview. It happens
> when I use the mouse wheel or right click on either the
> GraphLayoutViewItem or the TreeRingViewItem. It looks like a null
> pointer is being deferenced in vtkRenderer::GetActiveCamera, I am not
> familiar enough with this code to know what is needed to prevent it
> from happening.
>
> This is Qt 4.7.4, vtk 5.10-rc3.
>
> Here is the backtrace from gdb, hopefully it will be helpful to
> somebody in tracking down the bug:
>
> luke at LenovoW510 ~/repos/VTK-build $ gdb bin/qtgraphicsview
> GNU gdb (Gentoo 7.3.1 p2) 7.3.1
> Copyright (C) 2011 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-pc-linux-gnu".
> For bug reporting instructions, please see:
> <http://bugs.gentoo.org/>...
> Reading symbols from /home/luke/repos/VTK-build/bin/qtgraphicsview...done.
> (gdb) run
> Starting program: /home/luke/repos/VTK-build/bin/qtgraphicsview
> warning: Could not load shared library symbols for linux-vdso.so.1.
> Do you need "set solib-search-path" or "set sysroot"?
> [Thread debugging using libthread_db enabled]
> [New Thread 0x7fffec829700 (LWP 24213)]
> [New Thread 0x7fffebf08700 (LWP 24214)]
> [New Thread 0x7fffeae77700 (LWP 24215)]
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000000084df3e in vtkRenderer::GetActiveCamera (this=0x0) at
> /home/luke/repos/VTK/Rendering/vtkRenderer.cxx:732
> 732 if ( this->ActiveCamera == NULL )
> (gdb) bt full
> #0 0x000000000084df3e in vtkRenderer::GetActiveCamera (this=0x0) at
> /home/luke/repos/VTK/Rendering/vtkRenderer.cxx:732
> No locals.
> #1 0x0000000000a7ddb8 in vtkInteractorStyleRubberBand2D::OnMouseMove
> (this=0x19fddf0)
> at /home/luke/repos/VTK/Rendering/vtkInteractorStyleRubberBand2D.cxx:160
> lastPt = {272, 301}
> lastFocalPt = {6.9533558069077419e-310,
> 8.0260568914393828e-317, 6.9533558069128802e-310}
> rwi = 0x19db8e0
> curPt = {272, 302}
> camera = 0xf7cd34
> lastScale = 6.9533558069109039e-310
> lastPos = {1.7601598508840916e-316, 8.0251626326204102e-317,
> 1.7424003648049405e-316}
> #2 0x00000000008c010f in vtkInteractorStyle::ProcessEvents (event=26,
> clientdata=0x19fddf0, calldata=0x7fffffffbb20)
> at /home/luke/repos/VTK/Rendering/vtkInteractorStyle.cxx:1007
> self = 0x19fddf0
> #3 0x0000000000ee7c1f in vtkCallbackCommand::Execute (this=0x19fe090,
> caller=0x19db8e0, event=26, callData=0x7fffffffbb20)
> at /home/luke/repos/VTK/Common/vtkCallbackCommand.cxx:42
> No locals.
> #4 0x0000000000f7c7b5 in vtkSubjectHelper::InvokeEvent
> (this=0x19f73c0, event=26, callData=0x7fffffffbb20, self=0x19db8e0)
> at /home/luke/repos/VTK/Common/vtkObject.cxx:602
> command = 0x19fe090
> vIter = {first = 28, second = true}
> focusHandled = 0
> saveListModified = 1
> visited = std::map with 32 elements = {[24] = false, [25] =
> false, [26] = false, [27] = false, [28] = true, [29] = false, [30] =
> false,
> [31] = false, [32] = false, [33] = false, [34] = false, [35]
> = false, [36] = false, [37] = false, [38] = false, [39] = false, [40]
> = false,
> [41] = false, [42] = false, [43] = false, [44] = false, [45]
> = false, [46] = false, [47] = false, [48] = false, [49] = false, [50]
> = false,
> [51] = false, [52] = false, [53] = false, [54] = false, [55] = false}
> elem = 0x19f6810
> next = 0x19f6940
> #5 0x0000000000f7ccbf in vtkObject::InvokeEvent (this=0x19db8e0,
> event=26, callData=0x7fffffffbb20) at
> /home/luke/repos/VTK/Common/vtkObject.cxx:770
> No locals.
> #6 0x00000000008455a2 in QVTKInteractorAdapter::ProcessEvent
> (this=0x19f74a0, e=0x7fffffffbb20, iren=0x19db8e0)
> at /home/luke/repos/VTK/GUISupport/Qt/QVTKInteractorAdapter.cxx:117
> e2 = 0x7fffffffbb20
> t = QEvent::MouseMove
> #7 0x0000000000838a56 in QVTKGraphicsItem::mouseMoveEvent
> (this=0x18ff3d0, e=0x7fffffffc320) at
> /home/luke/repos/VTK/GUISupport/Qt/QVTKGraphicsItem.cxx:282
> pf = {xp = 272, yp = 209}
> pi = {xp = 272, yp = 209}
> e2 = <incomplete type>
> #8 0x00007ffff5ee75de in QGraphicsItem::sceneEvent(QEvent*) () from
> /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #9 0x00007ffff5f0fbfa in
> QGraphicsScenePrivate::sendMouseEvent(QGraphicsSceneMouseEvent*) ()
> from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #10 0x00007ffff5f106fc in
> QGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from
> /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> ---Type <return> to continue, or q <return> to quit---
> #11 0x00007ffff5f1e6bb in QGraphicsScene::event(QEvent*) () from
> /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #12 0x00007ffff5959944 in QApplicationPrivate::notify_helper(QObject*,
> QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #13 0x00007ffff595e7b3 in QApplication::notify(QObject*, QEvent*) ()
> from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #14 0x00007ffff489ee5c in QCoreApplication::notifyInternal(QObject*,
> QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
> No symbol table info available.
> #15 0x00007ffff5f38319 in
> QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent*) () from
> /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #16 0x00007ffff5f3853e in QGraphicsView::mouseMoveEvent(QMouseEvent*)
> () from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #17 0x00007ffff59a73f6 in QWidget::event(QEvent*) () from
> /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #18 0x00007ffff5d20466 in QFrame::event(QEvent*) () from
> /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #19 0x00007ffff5f3ca2b in QGraphicsView::viewportEvent(QEvent*) ()
> from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #20 0x00007ffff489efe8 in
> QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*,
> QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
> No symbol table info available.
> #21 0x00007ffff595990f in QApplicationPrivate::notify_helper(QObject*,
> QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #22 0x00007ffff595efef in QApplication::notify(QObject*, QEvent*) ()
> from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #23 0x00007ffff489ee5c in QCoreApplication::notifyInternal(QObject*,
> QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
> No symbol table info available.
> #24 0x00007ffff595a912 in
> QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*,
> QWidget*, QWidget**, QPointer<QWidget>&, bool) ()
> from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #25 0x00007ffff59d2f18 in QETWidget::translateMouseEvent(_XEvent
> const*) () from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #26 0x00007ffff59d1d1a in QApplication::x11ProcessEvent(_XEvent*) ()
> from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #27 0x00007ffff59f8cb2 in x11EventSourceDispatch(_GSource*, int
> (*)(void*), void*) () from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> #28 0x00007ffff1bf15dd in g_main_context_dispatch () from
> /usr/lib64/libglib-2.0.so.0
> No symbol table info available.
> #29 0x00007ffff1bf1dd8 in g_main_context_iterate.isra.21 () from
> /usr/lib64/libglib-2.0.so.0
> No symbol table info available.
> #30 0x00007ffff1bf1fa9 in g_main_context_iteration () from
> /usr/lib64/libglib-2.0.so.0
> No symbol table info available.
> #31 0x00007ffff48c8a1f in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () from /usr/lib64/qt4/libQtCore.so.4
> No symbol table info available.
> #32 0x00007ffff59f894e in
> QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () from /usr/lib64/qt4/libQtGui.so.4
> No symbol table info available.
> ---Type <return> to continue, or q <return> to quit---
> #33 0x00007ffff489e062 in
> QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
> from /usr/lib64/qt4/libQtCore.so.4
> No symbol table info available.
> #34 0x00007ffff489e25f in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
> /usr/lib64/qt4/libQtCore.so.4
> No symbol table info available.
> #35 0x00007ffff48a2257 in QCoreApplication::exec() () from
> /usr/lib64/qt4/libQtCore.so.4
> No symbol table info available.
> #36 0x00000000008323b0 in main (argc=1, argv=0x7fffffffdbd8) at
> /home/luke/repos/VTK/Examples/GUI/Qt/GraphicsView/main.cpp:13
> app = <incomplete type>
> view = {<QGraphicsView> = {<No data fields>}, mCtx =
> 0x18fec90, mWidget = 0x18fd370}
> (gdb) kill
> Kill the program being debugged? (y or n) y
> (gdb) quit
> luke at LenovoW510 ~/repos/VTK-build $
>
>
> On Thu, Mar 29, 2012 at 2:08 AM, septem <septem.wu at gmail.com> wrote:
>> Thank you for your response.
>>
>> Qt4.8 is configured use the configure.exe
>>
>> vtk is configured use cmake and build against Qt4.8
>>
>> All the classes and functions are working fine except QVTKGraphicsItem
>>
>> After I removed the code which contains "QVTKGraphicsItem", the program runs
>> ok.
>>
>> --
>> View this message in context: http://vtk.1045678.n5.nabble.com/VTk-Examples-GUI-Qt-GraphicsView-crashed-on-win7-tp5602763p5603110.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>> _______________________________________________
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>
>
>
> --
> "Those who would give up essential liberty to purchase a little
> temporary safety deserve neither liberty nor safety."
>
> -- Benjamin Franklin, Historical Review of Pennsylvania, 1759
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
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