There were some changes recently to DeleteHandler w.r.t. exiting an OSG application, but these were added _after_ 2.0 was released. The relevant subversion revision is 7074, dated july, 7th.
Paul Anye Li wrote: > Hi, > > I've been experiencing various problems involving osg::DeleteHandler. > > When I modify the osgviewer program by replacing > > osgViewer::Viewer viewer(arguments); > > with > > osg::ref_ptr<osgViewer::Viewer> viewerp(new > osgViewer::Viewer(arguments)); > osgViewer::Viewer& viewer = *viewerp; > > and quit the application, sometimes it hangs, and sometimes it displays > > Error: glBufferData not supported by the OpenGL driver > > In any case, I'm pretty sure that's not true for me, since I have > OpenGL 2.1 drivers. I think the problem doesn't occur when I pass in > --SingleThreaded. > > In one of my projects, where I'm trying to embed a python interpreter > (using boost::python and the Python C API), I also found that when I > call an exposed function through python that creates a node and puts > it in a global ref_ptr, I get a segfault upon quitting the application > somewhere in DeleteHandler::doDelete(). I believe this happens > regardless of the threading model. I don't claim much familiarity > with boost::python or the Python C API, but I don't think I'm doing > anything wrong involving Python's reference counting or threads, since > I can produce the problem in a minimal program that does what I'm > describing. > > Incidentally, when I run valgrind osgviewer cow.osg, I get the > following error: > > Conditional jump or move depends on uninitialised value(s) > at 0x4AEBB4C: osg::DeleteHandler::flush() (stl_list.h:135) > by 0x530D58D: osgViewer::Viewer::advance(double) (Viewer.cpp:1823) > by 0x5313F30: osgViewer::Viewer::frame(double) (Viewer.cpp:1783) > by 0x5314085: osgViewer::Viewer::run() (Viewer.cpp:767) > by 0x4039EF: main ( osgViewer.cpp:146) > > I've been running all of this on a linux x86_64 machine, osg-2.0 > compiled with the ReleaseWithDebugInfo switch, using g++-3.4.5. > > Has anyone else experienced these kinds of problems? > > Thanks, > > Anye Li > >------------------------------------------------------------------------ > >_______________________________________________ >Osg-Users mailing list >[email protected] >http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ Osg-Users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
