spreadsheet crash

gdb.bt

backtrace:
#0  0x0000000000000030 in ?? ()
No symbol table info available.
#1  0x00007fffed5f70a9 in QMetaObject::cast(QObject const*) const () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#2  0x00007fffb635171a in qobject_cast<SpreadsheetGui::LineEdit*> (object=0x55555bded700) at /usr/include/qt4/QtCore/qobject.h:380
No locals.
#3  0x00007fffb6350416 in SpreadsheetGui::SheetTableView::closeEditor (this=0x555556be38c0, editor=0x55555bded700, hint=QAbstractItemDelegate::NoHint) at /root/FreeCAD/src/Mod/Spreadsheet/Gui/SheetTableView.cpp:337
        le = 0x7fffb63507da <SpreadsheetGui::SheetTableView::metaObject() const+28>
#4  0x00007fffed604660 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#5  0x00007fffee75d620 in QAbstractItemDelegate::closeEditor(QWidget*, QAbstractItemDelegate::EndEditHint) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#6  0x00007fffb634da61 in SpreadsheetGui::SpreadsheetDelegate::commitAndCloseEditor (this=0x55555bd1b380) at /root/FreeCAD/src/Mod/Spreadsheet/Gui/SpreadsheetDelegate.cpp:66
        editor = 0x55555bded700
#7  0x00007fffb634dc9b in SpreadsheetGui::SpreadsheetDelegate::qt_static_metacall (_o=0x55555bd1b380, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffffffbc70) at /root/fc-build/src/Mod/Spreadsheet/Gui/moc_SpreadsheetDelegate.cpp:49
        _t = 0x55555bd1b380
#8  0x00007fffed604660 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#9  0x00007fffee4e38a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#10 0x00007fffed604660 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#11 0x00007fffee4e8a5c in QLineControl::processKeyEvent(QKeyEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#12 0x00007fffee4ddf2a in QLineEdit::keyPressEvent(QKeyEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#13 0x00007fffee10d923 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#14 0x00007fffee4e3993 in QLineEdit::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#15 0x00007fffb634602d in SpreadsheetGui::LineEdit::event (this=0x55555bded700, event=0x7fffffffc4a0) at /root/FreeCAD/src/Mod/Spreadsheet/Gui/LineEdit.cpp:77
No locals.
#16 0x00007fffee0b654c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#17 0x00007fffee0bef8f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#18 0x00007ffff65984c1 in Gui::GUIApplication::notify (this=0x7fffffffd6c0, receiver=0x55555bded700, event=0x7fffffffc4a0) at /root/FreeCAD/src/Gui/GuiApplication.cpp:91
No locals.
#19 0x00007fffed5eff1d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#20 0x00007fffee15d653 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#21 0x00007fffee15db63 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#22 0x00007fffee136908 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#23 0x00007fffee160502 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#24 0x00007fffe4b857f7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#25 0x00007fffe4b85a60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#26 0x00007fffe4b85b0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#27 0x00007fffed620854 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#28 0x00007fffee1605d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#29 0x00007fffed5ee7ef in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#30 0x00007fffed5eeb55 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#31 0x00007fffed5f4bd9 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#32 0x00007ffff6519be2 in Gui::Application::runApplication () at /root/FreeCAD/src/Gui/Application.cpp:2010
        s = <incomplete type>
        fi = {FileName = "/tmp/FreeCAD_793.lock"}
        lock = {<std::basic_ofstream<char, std::char_traits<char> >> = {<No data fields>}, <No data fields>}
        flock = {m_file_hnd = 11}
        cfg = std::map with 36 elements = {["AppDataSkipVendor"] = "true", ["AppHomePath"] = "/opt/FreeCAD/", ["AppIcon"] = "freecad", ["AppTempPath"] = "/tmp/", ["BinPath"] = "/opt/FreeCAD/bin/", ["BuildRepositoryURL"] = "git://github.com/realthunder/FreeCAD.git LinkStage3", ["BuildRevision"] = "15518 (Git)", ["BuildRevisionBranch"] = "LinkStage3", ["BuildRevisionDate"] = "2018/09/15 03:25:31", ["BuildRevisionHash"] = "a179d7afebafb44771acc31045241ed7738cdd6f", ["BuildVersionMajor"] = "0", ["BuildVersionMinor"] = "18", ["Console"] = "0", ["CopyrightInfo"] = "© Juergen Riegel, Werner Mayer, Yorik van Havre 2001-2018\n  #####", ' ' <repeats 17 times>, "####  ###   ####  \n  #", ' ' <repeats 20 times>, "#      # #   #   # \n  #     ##  #### ####  #     #   #  #   # \n  ####  # # "..., ["Debug"] = "1", ["DocPath"] = "/opt/FreeCAD/doc/", ["ExeName"] = "FreeCAD", ["ExeVendor"] = "FreeCAD", ["ExeVersion"] = "0.18", ["LoggingFile"] = "", ["MaintainerUrl"] = "http://www.freecadweb.org/wiki/Main_Page", ["OpenFileCount"] = "", ["PATH"] = "/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games", ["PYTHONPATH"] = "", ["PythonSearchPath"] = ":/usr/lib/python2.7:/usr/lib/python2.7/plat-x86_64-linux-gnu:/usr/lib/python2.7/lib-tk:/usr/lib/python2.7/lib-old:/usr/lib/python2.7/lib-dynload", ["RunMode"] = "Gui", ["SplashAlignment"] = "Bottom|Left", ["SplashInfoColor"] = "#c8c8c8", ["SplashScreen"] = "freecadsplash", ["SplashTextColor"] = "#ffffff", ["StartWorkbench"] = "StartWorkbench", ["SystemParameter"] = "/home/aea/.FreeCAD/system.cfg", ["UserAppData"] = "/home/aea/.FreeCAD/", ["UserHomePath"] = "/home/aea", ["UserParameter"] = "/home/aea/.FreeCAD/user.cfg", ["Verbose"] = ""}
        it = {first = <error: Cannot access memory at address 0x24>, second = <error reading variable: Cannot create a lazy string with address 0x0, and a non-zero length.>}
        argc = 1
        mainApp = {<Gui::GUIApplication> = {<Gui::GUIApplicationNativeEventAware> = {<QApplication> = {<No data fields>}, static staticMetaObject = {d = {superdata = 0x7fffeeba7fa0 <QApplication::staticMetaObject>, stringdata = 0x7ffff6abe760 <qt_meta_stringdata_Gui__GUIApplicationNativeEventAware> "Gui::GUIApplicationNativeEventAware", data = 0x7ffff6abe720 <qt_meta_data_Gui__GUIApplicationNativeEventAware>, extradata = 0x7ffff72b67a0 <Gui::GUIApplicationNativeEventAware::staticMetaObjectExtraData>}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7ffff659b6b0 <Gui::GUIApplicationNativeEventAware::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>}, spaceballPresent = false, mainWindow = 0x7fffffffd340, motionDataArray = {-169942488, 32767, -136434765, 32767, 19402, 0}}, static staticMetaObject = {d = {superdata = 0x7ffff72bc340 <Gui::GUIApplicationNativeEventAware::staticMetaObject>, stringdata = 0x7ffff6abe160 <qt_meta_stringdata_Gui__GUIApplication> "Gui::GUIApplication", data = 0x7ffff6abe100 <qt_meta_data_Gui__GUIApplication>, extradata = 0x7ffff72b6770 <Gui::GUIApplication::staticMetaObjectExtraData>}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7ffff6599160 <Gui::GUIApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>}, caughtException = {px = 0x0, pn = {pi_ = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff72bc120 <Gui::GUIApplication::staticMetaObject>, stringdata = 0x7ffff6abe280 <qt_meta_stringdata_Gui__GUISingleApplication> "Gui::GUISingleApplication", data = 0x7ffff6abe200 <qt_meta_data_Gui__GUISingleApplication>, extradata = 0x7ffff72b6780 <Gui::GUISingleApplication::staticMetaObjectExtraData>}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7ffff65992ea <Gui::GUISingleApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>}, d_ptr = {d = 0x5555559b8800}}
        plugin = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 5571}, alloc = 0, size = 0, data = 0x5555557633fa <QString::shared_null+26>, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 117}, alloc = 0, size = 0, data = 0x7fffed9568fa <QString::shared_empty+26>, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x555555b148a0, static codecForCStrings = 0x0}
        qssPaths = {<QList<QString>> = {{p = {static shared_null = {ref = {_q_value = 5923}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0x555555b151a0}, d = 0x555555b151a0}}, <No data fields>}
        version = {i = 4223}
        hTheme = {_toHandle = 0x555555b154b0}
        searchpath = ""
        name = ""
        path = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 5571}, alloc = 0, size = 0, data = 0x5555557633fa <QString::shared_null+26>, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 117}, alloc = 0, size = 0, data = 0x7fffed9568fa <QString::shared_empty+26>, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x555555b146e0, static codecForCStrings = 0x0}
        app = {signalNewDocument = {<boost::signal1<void, const Gui::Document&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::Document&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555c71120, pn = {pi_ = 0x555555b06930}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalDeleteDocument = {<boost::signal1<void, const Gui::Document&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::Document&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b068c0, pn = {pi_ = 0x555555b070d0}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalRelabelDocument = {<boost::signal1<void, const Gui::Document&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::Document&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b092c0, pn = {pi_ = 0x555555aea9b0}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalRenameDocument = {<boost::signal1<void, const Gui::Document&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::Document&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555af29c0, pn = {pi_ = 0x555555af2b10}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalActiveDocument = {<boost::signal1<void, const Gui::Document&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::Document&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b07750, pn = {pi_ = 0x555555b078a0}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalNewObject = {<boost::signal1<void, const Gui::ViewProvider&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::ViewProvider&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555c7a3f0, pn = {pi_ = 0x555555c7a540}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalDeletedObject = {<boost::signal1<void, const Gui::ViewProvider&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::ViewProvider&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555c7a560, pn = {pi_ = 0x555555b152c0}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalChangedObject = {<boost::signal2<void, const Gui::ViewProvider&, const App::Property&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::ViewProvider&, const App::Property&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b152e0, pn = {pi_ = 0x555555b146b0}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalRelabelObject = {<boost::signal1<void, const Gui::ViewProvider&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::ViewProvider&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b059f0, pn = {pi_ = 0x555555b05b40}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalActivatedObject = {<boost::signal1<void, const Gui::ViewProvider&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::ViewProvider&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b05b60, pn = {pi_ = 0x555555b07110}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalActivateWorkbench = {<boost::signal1<void, char const*, boost::last_value<void>, int, std::less<int>, boost::function<void(char const*)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b03c60, pn = {pi_ = 0x555555b03db0}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalAddWorkbench = {<boost::signal1<void, char const*, boost::last_value<void>, int, std::less<int>, boost::function<void(char const*)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b03dd0, pn = {pi_ = 0x555555b03f20}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalRemoveWorkbench = {<boost::signal1<void, char const*, boost::last_value<void>, int, std::less<int>, boost::function<void(char const*)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b03f40, pn = {pi_ = 0x555555b0b730}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalActivateView = {<boost::signal1<void, const Gui::MDIView*, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::MDIView*)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b0b750, pn = {pi_ = 0x555555b0b8a0}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, signalShowHidden = {<boost::signal1<void, const Gui::Document&, boost::last_value<void>, int, std::less<int>, boost::function<void(const Gui::Document&)> >> = {<boost::signals::detail::signal_base> = {<boost::noncopyable_::noncopyable> = {<No data fields>}, impl = {px = 0x555555b0b8c0, pn = {pi_ = 0x555555b0ba10}}}, <boost::signals::trackable> = {connected_signals = empty std::__cxx11::listPython Exception <class 'ValueError'> Cannot find type boost::signals::trackable::connection_list::_Node: 
, dying = false}, <No data fields>}, <No data fields>}, static Instance = 0x7fffffffd370, static Methods = 0x7ffff7356140 <Gui::Application::Methods>, d = 0x555555b5cd90, _pcWorkbenchDictionary = 0x7fffddd41b40}
        mw = {<QMainWindow> = {<No data fields>}, static staticMetaObject = {d = {superdata = 0x7fffeebccec0 <QMainWindow::staticMetaObject>, stringdata = 0x7ffff6ea5280 <qt_meta_stringdata_Gui__MainWindow> "Gui::MainWindow", data = 0x7ffff6ea4fe0 <qt_meta_data_Gui__MainWindow>, extradata = 0x7ffff72b83c0 <Gui::MainWindow::staticMetaObjectExtraData>}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7ffff69a54f0 <Gui::MainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>}, static instance = 0x7fffffffd340, d = 0x555555b67c80}
        hGen = {_toHandle = 0x5555558cfad0}
        showVersion = true
        hDocGrp = {_toHandle = 0x555555cfc6b0}
        timeout = 15
        hGrp = {_toHandle = 0x555557bb2ab0}
        size = 24
        home = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 5571}, alloc = 0, size = 0, data = 0x5555557633fa <QString::shared_null+26>, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 117}, alloc = 0, size = 0, data = 0x7fffed9568fa <QString::shared_empty+26>, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x555555c8f470, static codecForCStrings = 0x0}
        hidden = false
        start = "Assembly3Workbench"
        wb = {<QList<QString>> = {{p = {static shared_null = {ref = {_q_value = 5923}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0x555557a8d050}, d = 0x555557a8d050}}, <No data fields>}
        mdi = 0x555555b67a90
        style = ""
#33 0x000055555555c559 in main (argc=1, argv=0x7fffffffe638) at /root/FreeCAD/src/Main/MainGui.cpp:291
        stdcout = {<std::basic_streambuf<char, std::char_traits<char> >> = {<No data fields>}, buffer = ""}
        stdclog = {<std::basic_streambuf<char, std::char_traits<char> >> = {<No data fields>}, buffer = ""}
        stdcerr = {<std::basic_streambuf<char, std::char_traits<char> >> = {<No data fields>}, buffer = ""}
        oldcout = 0x7fffecac26e0
        oldclog = 0x7fffecac2620
        oldcerr = 0x7fffecac2620


registers:
rax            0x555558354e10	93825040469520
rbx            0x1	1
rcx            0x7fffffffbb38	140737488337720
rdx            0x55555bded700	93825101911808
rsi            0x55555bded700	93825101911808
rdi            0x55555bded700	93825101911808
rbp            0x7fffffffe550	0x7fffffffe550
rsp            0x7fffffffdd10	0x7fffffffdd10
r8             0x8	8
r9             0x0	0
r10            0x2	2
r11            0x0	0
r12            0x0	0
r13            0x0	0
r14            0x1	1
r15            0x1	1
rip            0x55555555c559	0x55555555c559 <main(int, char**)+2671>
eflags         0x10206	[ PF IF RF ]
cs             0x33	51
ss             0x2b	43
ds             0x0	0
es             0x0	0
fs             0x0	0
gs             0x0	0


current instructions:
=> 0x55555555c559 <main(int, char**)+2671>:	jmp    0x55555555c560 <main(int, char**)+2678>
   0x55555555c55b <main(int, char**)+2673>:	callq  0x55555555b6b0 <_ZN3App11Application14runApplicationEv@plt>
   0x55555555c560 <main(int, char**)+2678>:	mov    -0x38(%rbp),%rax
   0x55555555c564 <main(int, char**)+2682>:	mov    %rax,%rsi
   0x55555555c567 <main(int, char**)+2685>:	lea    0x206e9a(%rip),%rdi        # 0x555555763408 <_ZSt4cout@@GLIBCXX_3.4+8>
   0x55555555c56e <main(int, char**)+2692>:	callq  0x55555555b510 <_ZNSt9basic_iosIcSt11char_traitsIcEE5rdbufEPSt15basic_streambufIcS1_E@plt>
   0x55555555c573 <main(int, char**)+2697>:	mov    -0x40(%rbp),%rax
   0x55555555c577 <main(int, char**)+2701>:	mov    %rax,%rsi
   0x55555555c57a <main(int, char**)+2704>:	lea    0x206d07(%rip),%rdi        # 0x555555763288 <_ZSt4clog@@GLIBCXX_3.4+8>
   0x55555555c581 <main(int, char**)+2711>:	callq  0x55555555b510 <_ZNSt9basic_iosIcSt11char_traitsIcEE5rdbufEPSt15basic_streambufIcS1_E@plt>
   0x55555555c586 <main(int, char**)+2716>:	mov    -0x48(%rbp),%rax
   0x55555555c58a <main(int, char**)+2720>:	mov    %rax,%rsi
   0x55555555c58d <main(int, char**)+2723>:	lea    0x206f94(%rip),%rdi        # 0x555555763528 <_ZSt4cerr@@GLIBCXX_3.4+8>
   0x55555555c594 <main(int, char**)+2730>:	callq  0x55555555b510 <_ZNSt9basic_iosIcSt11char_traitsIcEE5rdbufEPSt15basic_streambufIcS1_E@plt>
   0x55555555c599 <main(int, char**)+2735>:	callq  0x55555555dfdc <Base::Console()>
   0x55555555c59e <main(int, char**)+2740>:	mov    %rax,%rbx


threads backtrace:

Thread 12 (Thread 0x7fffb51b0700 (LWP 914)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffc4a0a022 in ?? () from /usr/lib/x86_64-linux-gnu/libtbb.so.2
#2  0x00007fffc4a0a0c9 in ?? () from /usr/lib/x86_64-linux-gnu/libtbb.so.2
#3  0x00007ffff1866494 in start_thread (arg=0x7fffb51b0700) at pthread_create.c:333
#4  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 11 (Thread 0x7fffb55b1700 (LWP 913)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffc4a0a022 in ?? () from /usr/lib/x86_64-linux-gnu/libtbb.so.2
#2  0x00007fffc4a0a0c9 in ?? () from /usr/lib/x86_64-linux-gnu/libtbb.so.2
#3  0x00007ffff1866494 in start_thread (arg=0x7fffb55b1700) at pthread_create.c:333
#4  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 10 (Thread 0x7fffb59b2700 (LWP 912)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffc4a0a022 in ?? () from /usr/lib/x86_64-linux-gnu/libtbb.so.2
#2  0x00007fffc4a0a0c9 in ?? () from /usr/lib/x86_64-linux-gnu/libtbb.so.2
#3  0x00007ffff1866494 in start_thread (arg=0x7fffb59b2700) at pthread_create.c:333
#4  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 9 (Thread 0x7fffbcc2c700 (LWP 897)):
#0  0x00007fffebf6967d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fffe4b859f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffe4b85d82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffdbd26656 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fffe4bad3d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff1866494 in start_thread (arg=0x7fffbcc2c700) at pthread_create.c:333
#6  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 8 (Thread 0x7fffb7fff700 (LWP 896)):
#0  0x00007fffebf6967d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fffe4b859f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffe4b85b0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe4b85b51 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffe4bad3d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff1866494 in start_thread (arg=0x7fffb7fff700) at pthread_create.c:333
#6  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 5 (Thread 0x7fffce5e5700 (LWP 823)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffd41acc33 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fffd41aca97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007ffff1866494 in start_thread (arg=0x7fffce5e5700) at pthread_create.c:333
#4  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 4 (Thread 0x7fffcede6700 (LWP 822)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffd41acc33 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fffd41aca97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007ffff1866494 in start_thread (arg=0x7fffcede6700) at pthread_create.c:333
#4  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 3 (Thread 0x7fffcf5e7700 (LWP 821)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffd41acc33 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fffd41aca97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007ffff1866494 in start_thread (arg=0x7fffcf5e7700) at pthread_create.c:333
#4  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 2 (Thread 0x7fffcfde8700 (LWP 820)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffd41acc33 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fffd41aca97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007ffff1866494 in start_thread (arg=0x7fffcfde8700) at pthread_create.c:333
#4  0x00007fffebf72acf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 1 (Thread 0x7ffff7fa93c0 (LWP 793)):
#0  0x0000000000000030 in ?? ()
#1  0x00007fffed5f70a9 in QMetaObject::cast(QObject const*) const () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fffb635171a in qobject_cast<SpreadsheetGui::LineEdit*> (object=0x55555bded700) at /usr/include/qt4/QtCore/qobject.h:380
#3  0x00007fffb6350416 in SpreadsheetGui::SheetTableView::closeEditor (this=0x555556be38c0, editor=0x55555bded700, hint=QAbstractItemDelegate::NoHint) at /root/FreeCAD/src/Mod/Spreadsheet/Gui/SheetTableView.cpp:337
#4  0x00007fffed604660 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007fffee75d620 in QAbstractItemDelegate::closeEditor(QWidget*, QAbstractItemDelegate::EndEditHint) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#6  0x00007fffb634da61 in SpreadsheetGui::SpreadsheetDelegate::commitAndCloseEditor (this=0x55555bd1b380) at /root/FreeCAD/src/Mod/Spreadsheet/Gui/SpreadsheetDelegate.cpp:66
#7  0x00007fffb634dc9b in SpreadsheetGui::SpreadsheetDelegate::qt_static_metacall (_o=0x55555bd1b380, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffffffbc70) at /root/fc-build/src/Mod/Spreadsheet/Gui/moc_SpreadsheetDelegate.cpp:49
#8  0x00007fffed604660 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fffee4e38a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#10 0x00007fffed604660 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007fffee4e8a5c in QLineControl::processKeyEvent(QKeyEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#12 0x00007fffee4ddf2a in QLineEdit::keyPressEvent(QKeyEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#13 0x00007fffee10d923 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#14 0x00007fffee4e3993 in QLineEdit::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#15 0x00007fffb634602d in SpreadsheetGui::LineEdit::event (this=0x55555bded700, event=0x7fffffffc4a0) at /root/FreeCAD/src/Mod/Spreadsheet/Gui/LineEdit.cpp:77
#16 0x00007fffee0b654c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#17 0x00007fffee0bef8f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#18 0x00007ffff65984c1 in Gui::GUIApplication::notify (this=0x7fffffffd6c0, receiver=0x55555bded700, event=0x7fffffffc4a0) at /root/FreeCAD/src/Gui/GuiApplication.cpp:91
#19 0x00007fffed5eff1d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#20 0x00007fffee15d653 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#21 0x00007fffee15db63 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007fffee136908 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#23 0x00007fffee160502 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007fffe4b857f7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fffe4b85a60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fffe4b85b0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fffed620854 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#28 0x00007fffee1605d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#29 0x00007fffed5ee7ef in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#30 0x00007fffed5eeb55 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#31 0x00007fffed5f4bd9 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#32 0x00007ffff6519be2 in Gui::Application::runApplication () at /root/FreeCAD/src/Gui/Application.cpp:2010
#33 0x000055555555c559 in main (argc=1, argv=0x7fffffffe638) at /root/FreeCAD/src/Main/MainGui.cpp:291