Hi Michaele,

Stats in working fine on my mult-core Kubunto 7.10 NVidia box.  It
worked fine under 7.04 too.

Could it be a driver problem?  Maybe?  Nothing other than trying a
different driver will answer this
or establishing its a different problem...

Could it be a threading problem?  Maybe?  Try out:

  osgviewer mymodel.fmt --SingleThreaded

Robert.

On Jan 22, 2008 3:24 PM, Michele Bosi <[EMAIL PROTECTED]> wrote:
> My program uses osgViewer::StatsHandler, but when I press 'S' the
> second time to show the extended statistics it crashes with the
> following back-trace.
> The strange thing is that if I press 'S' only once the program shows
> the FPS without problem, but if I press 'S' again it crashes.
> Did anyone experienced the same problem?
> Note that the program crashes only on my Ubuntu 7.04+Mesa 7.0.2 box
> and not under WinXP.
>
> Regards,
> Michele
>
> Backtrace taken with gdb:
>
> #0  0x000010c9 in ?? ()
> #1  0xb7b38549 in osg::Drawable::Extensions::glGetQueryObjectui64v ()
> from /usr/local/lib/libosg.so.25
> #2  0xb7cc1012 in osgViewer::OpenGLQuerySupport::checkQuery () from
> /usr/local/lib/libosgViewer.so.25
> #3  0xb7cc3083 in osgViewer::Renderer::cull_draw () from
> /usr/local/lib/libosgViewer.so.25
> #4  0xb7cc3723 in osgViewer::Renderer::operator() () from
> /usr/local/lib/libosgViewer.so.25
> #5  0xb7b7ca88 in osg::GraphicsContext::runOperations () from
> /usr/local/lib/libosg.so.25
> #6  0xb7cf5bd6 in osgViewer::ViewerBase::renderingTraversals () from
> /usr/local/lib/libosgViewer.so.25
> #7  0xb7cf4e23 in osgViewer::ViewerBase::frame () from
> /usr/local/lib/libosgViewer.so.25
> #8  0x080610b2 in OsgQtViewer::paintGL (this=0x8107000) at
> ../../include/osgolem/osgqtviewer.hpp:149
> #9  0x0805c06e in EditorWidget::paintGL (this=0x8107000) at 
> editorwidget.cpp:364
> #10 0xb7a377ab in QGLWidget::glDraw () from /usr/lib/libQtOpenGL.so.4
> #11 0xb7a3628f in QGLWidget::updateGL () from /usr/lib/libQtOpenGL.so.4
> #12 0xb7a55e92 in QGLWidget::qt_metacall () from /usr/lib/libQtOpenGL.so.4
> #13 0x08077754 in EditorWidget::qt_metacall (this=0x8107000,
> _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbfa304f4) at
> moc_editorwidget.cpp:90
> #14 0xb72aaaa8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
> #15 0xb72ab42a in QMetaObject::activate () from /usr/lib/libQtCore.so.4
> #16 0xb72ca2b7 in QTimer::timeout () from /usr/lib/libQtCore.so.4
> #17 0xb72b267e in QTimer::timerEvent () from /usr/lib/libQtCore.so.4
> #18 0xb72a9834 in QObject::event () from /usr/lib/libQtCore.so.4
> #19 0xb7440190 in QApplicationPrivate::notify_helper () from
> /usr/lib/libQtGui.so.4
> #20 0xb74428c1 in QApplication::notify () from /usr/lib/libQtGui.so.4
> #21 0xb72bda43 in ?? () from /usr/lib/libQtCore.so.4
> #22 0xb691fdf2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
> #23 0xb6922dcf in ?? () from /usr/lib/libglib-2.0.so.0
> #24 0x080e5490 in ?? ()
> #25 0x00000000 in ?? ()
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