Program received signal SIGSEGV, Segmentation fault.
#0  /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7f87b22d6f20]
#1  0x7f873d723258 in opencascade::handle<TopoDS_TShape>::handle(opencascade::handle<TopoDS_TShape> const&) from /home/brad/FCD/FC/Mod/PartDesign/_PartDesign.so+0x14
#2  0x7f873d720cd2 in TopoDS_Shape::TopoDS_Shape(TopoDS_Shape const&) from /home/brad/FCD/FC/Mod/PartDesign/_PartDesign.so+0x24
#3  0x7f873d27487c in Part::TopoShape::TopoShape(TopoDS_Shape const&) from /home/brad/FCD/FC/Mod/Part/Part.so+0x5c
#4  0x7f870dd54f9b in TechDraw::Module::findShapeOutline(Py::Tuple const&) from /home/brad/FCD/FC/Mod/TechDraw/TechDraw.so+0x563
#5  0x7f870dd5ad6a in Py::ExtensionModule<TechDraw::Module>::invoke_method_varargs(void*, Py::Tuple const&) from /home/brad/FCD/FC/Mod/TechDraw/TechDraw.so+0x98
#6  0x7f870dd53384 in TechDraw::Module::invoke_method_varargs(void*, Py::Tuple const&) from /home/brad/FCD/FC/Mod/TechDraw/TechDraw.so+0x42
#7  /home/brad/FCD/FC/lib/libFreeCADBase.so(method_varargs_call_handler+0x121) [0x7f87b44ecc63]
#8  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x8010) [0x7f87b3ed71d0]
#9  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7d8) [0x7f87b4007278]
#10  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x5bf6) [0x7f87b3ed4db6]
#11  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x8b5b) [0x7f87b3ed7d1b]
#12  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7d8) [0x7f87b4007278]
#13  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(+0x1645f9) [0x7f87b3f8c5f9]
#14  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyObject_Call+0x43) [0x7f87b3e7c333]
#15  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(+0x1abd1c) [0x7f87b3fd3d1c]
#16  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyObject_Call+0x43) [0x7f87b3e7c333]
#17  /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_CallObjectWithKeywords+0x47) [0x7f87b40067a7]
#18  0x7f87b5f4c790 in Py::Callable::apply(Py::Tuple const&) const from /home/brad/FCD/FC/lib/libFreeCADGui.so+0x4a
#19  0x7f87b6073165 in Gui::PythonCommand::isActive() from /home/brad/FCD/FC/lib/libFreeCADGui.so+0x145
#20  0x7f87b606f708 in Gui::Command::testActive() from /home/brad/FCD/FC/lib/libFreeCADGui.so+0x128
#21  0x7f87b607662e in Gui::CommandManager::testActive() from /home/brad/FCD/FC/lib/libFreeCADGui.so+0x6a
#22  0x7f87b63da868 in Gui::MainWindow::updateActions() from /home/brad/FCD/FC/lib/libFreeCADGui.so+0x36
#23  /home/brad/FCD/FC/lib/libFreeCADGui.so(+0xf28876) [0x7f87b63e0876]
#24  0x7f87b2dd6f70 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) from /usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x4d0
#25  0x7f87b2ddcbe3 in QObject::event(QEvent*) from /usr/lib/x86_64-linux-gnu/libQtCore.so.4+0xa3
#26  0x7f87b32f503c in QApplicationPrivate::notify_helper(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQtGui.so.4+0x8c
#27  0x7f87b32fbf76 in QApplication::notify(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQtGui.so.4+0x2b6
#28  0x7f87b6033034 in Gui::GUIApplication::notify(QObject*, QEvent*) from /home/brad/FCD/FC/lib/libFreeCADGui.so+0x10e
#29  0x7f87b2dc28ad in QCoreApplication::notifyInternal(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x8d
#30  /usr/lib/x86_64-linux-gnu/libQtCore.so.4(+0x1bd6e0) [0x7f87b2df56e0]
#31  /usr/lib/x86_64-linux-gnu/libQtCore.so.4(+0x1ba851) [0x7f87b2df2851]
#32  /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x2e7) [0x7f87abd5c387]
#33  /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x4c5c0) [0x7f87abd5c5c0]
#34  /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x2c) [0x7f87abd5c64c]
#35  0x7f87b2df320e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) from /usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x7e
#36  /usr/lib/x86_64-linux-gnu/libQtGui.so.4(+0x272666) [0x7f87b33a2666]
#37  0x7f87b2dc112f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) from /usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x3f
#38  0x7f87b2dc1495 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) from /usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x1b5
#39  0x7f87b2dc7459 in QCoreApplication::exec() from /usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x99
#40  0x7f87b5f47c76 in Gui::Application::runApplication() from /home/brad/FCD/FC/lib/libFreeCADGui.so+0x2250
#41  ./bin/FreeCAD(main+0xa89) [0x560f9063d2f3]
#42  /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f87b22b9b97]
#43  ./bin/FreeCAD(_start+0x2a) [0x560f9063c6ca]