(gdb) bt #0 0x00007fffc3879ca8 in Geom2d_Curve::Value(double) const (this=0x0, U=U@entry=5) at /usr/src/debug/oce-OCE-0.17.1/src/Geom2d/Geom2d_Curve.cxx:80 #1 0x00007fffc9358846 in BRepOffset_Tool::OrientSection(TopoDS_Edge const&, TopoDS_Face const&, TopoDS_Face const&, TopAbs_Orientation&, TopAbs_Orientation&) (E=..., F1=..., F2=..., O1=@0x7fffffffa1b0: TopAbs_FORWARD, O2=@0x7fffffffa1d0: TopAbs_FORWARD) at /usr/src/debug/oce-OCE-0.17.1/src/BRepOffset/BRepOffset_Tool.cxx:529 #2 0x00007fffc93287ec in BRepOffset_Inter3d::ContextIntByArc(TopTools_IndexedMapOfShape const&, bool, BRepOffset_Analyse const&, BRepAlgo_Image const&, BRepAlgo_Image&) (this=this@entry=0x7fffffffa500, ContextFaces=..., InSide=false, Analyse=..., InitOffsetFace=..., InitOffsetEdge=...) at /usr/src/debug/oce-OCE-0.17.1/src/BRepOffset/BRepOffset_Inter3d.cxx:783 #3 0x00007fffc933270a in BRepOffset_MakeOffset::Intersection3D(BRepOffset_Inter3d&) (this=this@entry=0x7fffffffa878, Inter=...) at /usr/src/debug/oce-OCE-0.17.1/src/BRepOffset/BRepOffset_MakeOffset.cxx:2216 #4 0x00007fffc933d6f7 in BRepOffset_MakeOffset::MakeOffsetShape() (this=this@entry=0x7fffffffa878) at /usr/src/debug/oce-OCE-0.17.1/src/BRepOffset/BRepOffset_MakeOffset.cxx:709 #5 0x00007fffc933df21 in BRepOffset_MakeOffset::MakeThickSolid() (this=this@entry=0x7fffffffa878) at /usr/src/debug/oce-OCE-0.17.1/src/BRepOffset/BRepOffset_MakeOffset.cxx:772 #6 0x00007fffc92e8e9c in BRepOffsetAPI_MakeThickSolid::Build() (this=this@entry=0x7fffffffa840) at /usr/src/debug/oce-OCE-0.17.1/src/BRepOffsetAPI/BRepOffsetAPI_MakeThickSolid.cxx:65 #7 0x00007fffc92e90d0 in BRepOffsetAPI_MakeThickSolid::BRepOffsetAPI_MakeThickSolid(TopoDS_Shape const&, TopTools_ListOfShape const&, double, double, BRepOffset_Mode, bool, bool, GeomAbs_JoinType) (this=0x7fffffffa840, S=..., ClosingFaces=..., Offset=1, Tol=9.9999999999999995e-08, Mode=BRepOffset_Skin, Intersection=, SelfInter=, Join=GeomAbs_Arc) at /usr/src/debug/oce-OCE-0.17.1/src/BRepOffsetAPI/BRepOffsetAPI_MakeThickSolid.cxx:54 #8 0x00007fffca3d5890 in Part::TopoShape::makeThickSolid(TopTools_ListOfShape const&, double, double, bool, bool, short, short) const ( this=0x7fffffffab20, remFace=..., offset=1, tol=9.9999999999999995e-08, intersection=false, selfInter=false, offsetMode=0, join=0) at /home/myUserName/dev/FreeCAD/src/Mod/Part/App/TopoShape.cpp:2506 #9 0x00007fffc033a1e8 in PartDesign::Thickness::execute() (this=0x46339e0) at /home/myUserName/dev/FreeCAD/src/Mod/PartDesign/App/FeatureThickness.cpp:88 #10 0x00007ffff669a2b7 in App::DocumentObject::recompute() (this=0x46339e0) at /home/myUserName/dev/FreeCAD/src/App/DocumentObject.cpp:78 #11 0x00007fffca207e47 in Part::Feature::recompute() (this=0x46339e0) at /home/myUserName/dev/FreeCAD/src/Mod/Part/App/PartFeature.cpp:83 #12 0x00007ffff663889b in App::Document::_recomputeFeature(App::DocumentObject*) (this=0x2554670, Feat=0x46339e0) at /home/myUserName/dev/FreeCAD/src/App/Document.cpp:1954 #13 0x00007ffff663848d in App::Document::recompute() (this=0x2554670) at /home/myUserName/dev/FreeCAD/src/App/Document.cpp:1908 #14 0x00007ffff66c83de in App::DocumentPy::recompute(_object*) (this=0x217e380, args=0x7ffff7faf050) at /home/myUserName/dev/FreeCAD/src/App/DocumentPyImp.cpp:387 #15 0x00007ffff66c37c8 in App::DocumentPy::staticCallback_recompute(_object*, _object*) (self=0x217e388, args=0x7ffff7faf050) at /home/myUserName/dev/FreeCAD/build-debug/src/App/DocumentPy.cpp:1569 #16 0x00007ffff5aed147 in PyEval_EvalFrameEx () at /lib64/libpython2.7.so.1.0 #17 0x00007ffff5af0adc in PyEval_EvalCodeEx () at /lib64/libpython2.7.so.1.0 #18 0x00007ffff5af0bc9 in PyEval_EvalCode () at /lib64/libpython2.7.so.1.0 #19 0x00007ffff5b0a05f in run_mod () at /lib64/libpython2.7.so.1.0 #20 0x00007ffff5b0af14 in PyRun_StringFlags () at /lib64/libpython2.7.so.1.0 #21 0x00007ffff5f301ea in Base::InterpreterSingleton::runString[abi:cxx11](char const*) (this=0x647a80, sCmd=0x4917c68 "App.ActiveDocument.recompute()") at /home/myUserName/dev/FreeCAD/src/Base/Interpreter.cpp:196 #22 0x00007ffff7266c70 in Gui::Command::doCommand(Gui::Command::DoCmd_Type, char const*, ...) (eType=Gui::Command::App, sCmd=0x7ffff794c5c0 "App.ActiveDocument.recompute()") at /home/myUserName/dev/FreeCAD/src/Gui/Command.cpp:475 #23 0x00007ffff7267465 in Gui::Command::updateActive() () at /home/myUserName/dev/FreeCAD/src/Gui/Command.cpp:560 #24 0x00007fffc06bdae6 in finishFeature(Gui::Command const*, std::__cxx11::basic_string, std::allocator > const&, App::DocumentObject*, bool) (cmd=0x3ba04b0, FeatName="Thickness", prevSolidFeature=0x4657710, hidePrevSolid=true) at /home/myUserName/dev/FreeCAD/src/Mod/PartDesign/Gui/Command.cpp:601 #25 0x00007fffc06c129a in finishDressupFeature(Gui::Command const*, std::__cxx11::basic_string, std::allocator > const&, Part::Feature*, std::vector, std::allocator >, std::allocator, std::allocator > > > const&) (cmd=0x3ba04b0, which="Thickness", base=0x4657710, SubNames=std::vector of length 1, capacity 1 = {...}) at /home/myUserName/dev/FreeCAD/src/Mod/PartDesign/Gui/Command.cpp:1334 #26 0x00007fffc06c1ff2 in CmdPartDesignThickness::activated(int) (this=0x3ba04b0, iMsg=0) at /home/myUserName/dev/FreeCAD/src/Mod/PartDesign/Gui/Command.cpp:1504 #27 0x00007ffff72663ca in Gui::Command::invoke(int) (this=0x3ba04b0, i=0) at /home/myUserName/dev/FreeCAD/src/Gui/Command.cpp:300 #28 0x00007ffff725b23d in Gui::Action::onActivated() (this=0x24c62b0) at /home/myUserName/dev/FreeCAD/src/Gui/Action.cpp:94 #29 0x00007ffff726062f in Gui::Action::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x24c62b0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffffffbaa0) at /home/myUserName/dev/FreeCAD/build-debug/src/Gui/moc_Action.cpp:49 #30 0x00007fffedbca090 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4 #31 0x00007fffee6a6062 in QAction::triggered(bool) () at /lib64/libQtGui.so.4 #32 0x00007fffee6a73c3 in QAction::activate(QAction::ActionEvent) () at /lib64/libQtGui.so.4 #33 0x00007fffeea814c3 in QAbstractButtonPrivate::click() () at /lib64/libQtGui.so.4 #34 0x00007fffeea81614 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /lib64/libQtGui.so.4 #35 0x00007fffeeb46b5a in QToolButton::mouseReleaseEvent(QMouseEvent*) () at /lib64/libQtGui.so.4 #36 0x00007fffee702710 in QWidget::event(QEvent*) () at /lib64/libQtGui.so.4 #37 0x00007fffee6abecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQtGui.so.4 #38 0x00007fffee6b4547 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQtGui.so.4 #39 0x00007ffff72363bd in Gui::GUIApplication::notify(QObject*, QEvent*) (this=0x7fffffffd210, receiver=0x425f530, event=0x7fffffffc220) at /home/myUserName/dev/FreeCAD/src/Gui/GuiApplication.cpp:91 #40 0x00007fffedbb5eed in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQtCore.so.4 #41 0x00007fffee6b256b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer&, bool) () at /lib64/libQtGui.so.4 #42 0x00007fffee72cfe9 in QETWidget::translateMouseEvent(_XEvent const*) () at /lib64/libQtGui.so.4 ---Type to continue, or q to quit--- #43 0x00007fffee72b99c in QApplication::x11ProcessEvent(_XEvent*) () at /lib64/libQtGui.so.4 #44 0x00007fffee754409 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQtGui.so.4 #45 0x00007fffe504de42 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0 #46 0x00007fffe504e1c0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #47 0x00007fffe504e26c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #48 0x00007fffedbe645e in QEventDispatcherGlib::processEvents(QFlags) () at /lib64/libQtCore.so.4 #49 0x00007fffee7545a6 in QGuiEventDispatcherGlib::processEvents(QFlags) () at /lib64/libQtGui.so.4 #50 0x00007fffedbb47bf in QEventLoop::processEvents(QFlags) () at /lib64/libQtCore.so.4 #51 0x00007fffedbb4b25 in QEventLoop::exec(QFlags) () at /lib64/libQtCore.so.4 #52 0x00007fffedbba779 in QCoreApplication::exec() () at /lib64/libQtCore.so.4 #53 0x00007ffff71d1231 in Gui::Application::runApplication() () at /home/myUserName/dev/FreeCAD/src/Gui/Application.cpp:1735 #54 0x0000000000407ec2 in main(int, char**) (argc=1, argv=0x7fffffffe3c8) at /home/myUserName/dev/FreeCAD/src/Main/MainGui.cpp:237