From Ryan Kawicki, "I guess I missed these during my testing, but if the database pager has outstanding requests while the application is shutting down, the archive can become invalidated through unsafe calls to ReaderWriterTXP::getArchive. I've made this function return a ref_ptr and change other locations to as needed to conform to the change. I've tested this and no more crashes.

Following files from revision 11057 have been attached."

src/osgPlugins/txp/TXPNode.cpp

@@ -98,11 +98,6 @@ TXPNode::~TXPNode()
    }
 }
 
-TXPArchive* TXPNode::getArchive()
-{
-    return _archive.get();
-}
-
 void TXPNode::traverse(osg::NodeVisitor& nv)
 {
     switch(nv.getVisitorType())