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realthunder / FreeCAD

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[Problem] Lots of crashes in Sketcher #922

Closed m-sundman closed 8 months ago

m-sundman commented 8 months ago

Is there an existing issue for this?

Version

0.21 (Development)

Full version info

[code]
OS: Debian GNU/Linux 12 (bookworm) (KDE/plasma)
Word size of FreeCAD: 64-bit
Version: 2024.101.0.14555 (Git shallow) AppImage
Build type: Release
Branch: HEAD
Hash: 97ccc0b4c01d671f5a85116ffa5f71464f1eee1c
Python 3.11.6, Qt 5.15.8, Coin 4.0.1, Vtk 9.2.5, OCC 7.7.2
Locale: English/United States (en_US)
Installed mods: 
  * Curves 0.6.8
  * CurvedShapes 1.0.4
  * ThreadProfile
  * fasteners 0.4.54
  * fcgear
[/code]

Subproject(s) affected?

Sketcher

Problem description

Frequent crashes for very common operations in sketcher (at least inside a Part Design body). E.g., creating some mirror constraint across a construction line or making some tangent constraints or even deleting some elements. E.g., deleting Base.Sketch006.ExternalEdge2 in this: PowerRelayHolder.FCStd.zip Or select Edge3 and Edge4 in Base.Sketch008 and select the tangent constraint in this: PowerRelayHolder2.FCStd.zip

Anything else?

No response

Code of Conduct

kevenwyld commented 8 months ago

I'm also experiencing frequent crashes (segfaults) with mostly coincident and symmetry constraints in sketcher. A stack trace in the console from one of them is below.

OS: Ubuntu Core 20 (sway/sway)
Word size of FreeCAD: 64-bit
Version: 2023.1231.0.38924 (Git) Snap 122
Build type: Release
Branch: tag: 20231231tip
Hash: 7471b6a2720ee4973b9477a55713070b056c42e8
Python 3.8.10, Qt 5.15.7, Coin 4.0.1, Vtk 7.1.1, OCC 7.6.3
Locale: English/United States (en_US)
Installed mods: 
  * Assembly3 0.12.0
  * Curves 0.6.15
  * fasteners 0.4.71
Program received signal SIGSEGV, Segmentation fault.
#0  /lib/x86_64-linux-gnu/libc.so.6(+0x43090) [0x7f4def1cb090]
#1  0x7f4ce66fd7f0 in SketcherGui::ViewProviderSketch::drawConstraintIcons() from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0x7e0
#2  0x7f4ce66fe3e1 in SketcherGui::ViewProviderSketch::onSelectionChanged(Gui::SelectionChanges const&) from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0x241
#3  0x7f4df27d6ea4 in Gui::SelectionObserver::_onSelectionChanged(Gui::SelectionChanges const&) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x34
#4  0x7f4df23ee25f in boost::signals2::detail::signal_impl<void (Gui::SelectionChanges const&), boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void (Gui::SelectionChanges const&)>, boost::function<void (boost::signals2::connection const&, Gui::SelectionChanges const&)>, boost::signals2::mutex>::operator()(Gui::SelectionChanges const&) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x38f
#5  0x7f4df27d6f56 in Gui::SelectionSingleton::slotSelectionChanged(Gui::SelectionChanges const&) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x76
#6  0x7f4df23ee25f in boost::signals2::detail::signal_impl<void (Gui::SelectionChanges const&), boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void (Gui::SelectionChanges const&)>, boost::function<void (boost::signals2::connection const&, Gui::SelectionChanges const&)>, boost::signals2::mutex>::operator()(Gui::SelectionChanges const&) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x38f
#7  0x7f4df27d84bc in Gui::SelectionSingleton::notify(Gui::SelectionChanges&&) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x48c
#8  0x7f4df27d9745 in Gui::SelectionSingleton::clearCompleteSelection(bool) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x485
#9  0x7f4df27d9ede in Gui::SelectionSingleton::clearSelection(char const*, bool) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x54e
#10  0x7f4ce66c0d5d in SketcherGui::TaskSketcherElements::on_elementsWidget_itemSelectionChanged() from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0x11d
#11  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5(+0x2ec654) [0x7f4df008d654]
#12  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x466a86) [0x7f4df0edba86]
#13  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x46c2c9) [0x7f4df0ee12c9]
#14  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5(+0x2ec654) [0x7f4df008d654]
#15  0x7f4df0006f74 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x44
#16  0x7f4df000c6f8 in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x4e8
#17  0x7f4df000fd62 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x212
#18  0x7f4df000934b in QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x19b
#19  0x7f4df0e56e1d in QAbstractItemView::setCurrentIndex(QModelIndex const&) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x9d
#20  0x7f4ce66c2ac7 in SketcherGui::TaskSketcherElements::slotElementsChanged() from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0x4b7
#21  0x7f4df2182b80 in boost::signals2::detail::signal_impl<void (), boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void ()>, boost::function<void (boost::signals2::connection const&)>, boost::signals2::mutex>::operator()() from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x360
#22  0x7f4ce762981c in Sketcher::SketchObject::acceptGeometry() from /snap/freecad-realthunder/122/usr/lib/Sketcher.so+0x5c
#23  0x7f4ce76432eb in Sketcher::SketchObject::onChanged(App::Property const*) from /snap/freecad-realthunder/122/usr/lib/Sketcher.so+0xfab
#24  0x7f4df16abcc4 in App::Property::touch() from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x124
#25  0x7f4df16aa51c in App::Property::hasSetValue() from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x6c
#26  0x7f4de8f58b65 in Part::PropertyGeometryList::setValues(std::vector<Part::Geometry*, std::allocator<Part::Geometry*> >&&) from /snap/freecad-realthunder/122/usr/lib/Part.so+0x2d5
#27  0x7f4ce763be30 in Sketcher::SketchObject::solve(bool) from /snap/freecad-realthunder/122/usr/lib/Sketcher.so+0x560
#28  0x7f4ce764123d in Sketcher::SketchObject::delConstraints(std::vector<int, std::allocator<int> >, bool) from /snap/freecad-realthunder/122/usr/lib/Sketcher.so+0x40d
#29  0x7f4ce7641b92 in Sketcher::SketchObject::autoRemoveRedundants(bool) from /snap/freecad-realthunder/122/usr/lib/Sketcher.so+0x172
#30  0x7f4ce661acc6 in SketcherGui::tryAutoRecompute(Sketcher::SketchObject*, bool&) from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0xc6
#31  0x7f4ce661ad12 in SketcherGui::tryAutoRecompute(Sketcher::SketchObject*) from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0x22
#32  0x7f4ce6664735 in CmdSketcherConstrainSymmetric::activated(int) from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0x835
#33  0x7f4df217ba48 in Gui::Command::_invoke(int, bool) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x258
#34  0x7f4df217bf15 in Gui::Command::invoke(int, Gui::Command::TriggerSource) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x155
#35  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5(+0x2ec622) [0x7f4df008d622]
#36  0x7f4df0bdc996 in QAction::triggered(bool) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x46
#37  0x7f4df0bdf048 in QAction::activate(QAction::ActionEvent) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0xa8
#38  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x267d00) [0x7f4df0cdcd00]
#39  0x7f4df0cdcf25 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0xe5
#40  0x7f4df0dd6c0e in QToolButton::mouseReleaseEvent(QMouseEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0xe
#41  0x7f4df0c25dc6 in QWidget::event(QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x286
#42  0x7f4df0dd6cb8 in QToolButton::event(QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x38
#43  0x7f4df0be2e53 in QApplicationPrivate::notify_helper(QObject*, QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x83
#44  0x7f4df0bebe57 in QApplication::notify(QObject*, QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x397
#45  0x7f4df2109628 in Gui::GUIApplication::notify(QObject*, QEvent*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x98
#46  0x7f4df00560aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x12a
#47  0x7f4df0beb157 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x1b7
#48  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x1cbfb4) [0x7f4df0c40fb4]
#49  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x1cf2d4) [0x7f4df0c442d4]
#50  0x7f4df0be2e53 in QApplicationPrivate::notify_helper(QObject*, QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x83
#51  0x7f4df0bebc68 in QApplication::notify(QObject*, QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x1a8
#52  0x7f4df2109628 in Gui::GUIApplication::notify(QObject*, QEvent*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x98
#53  0x7f4df00560aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x12a
#54  0x7f4df047b7e0 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0x660
#55  0x7f4df047ce85 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0x265
#56  0x7f4df04536dc in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0xac
#57  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5(+0x79e5e) [0x7f4de48c7e5e]
#58  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x27d) [0x7f4ded0e317d]
#59  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x52400) [0x7f4ded0e3400]
#60  /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x33) [0x7f4ded0e34a3]
#61  0x7f4df00b0f82 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x62
#62  0x7f4df0054bab in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x12b
#63  0x7f4df005cd54 in QCoreApplication::exec() from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x94
#64  0x7f4df2047a24 in Gui::Application::runApplication() from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x404
#65  /snap/freecad-realthunder/122/usr/bin/FreeCADLink(+0xa380) [0x55ea54ed8380]
#66  /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f4def1ac083]
#67  /snap/freecad-realthunder/122/usr/bin/FreeCADLink(+0xa79e) [0x55ea54ed879e]
GinTonic99 commented 8 months ago

I can confirm the crashes in sketcher with very simple operations in both the latest appimage and snap.

OS: Debian GNU/Linux 12 (bookworm) (KDE/plasma) Word size of FreeCAD: 64-bit Version: 2024.101.0.14555 (Git shallow) AppImage Build type: Release Branch: HEAD Hash: 97ccc0b4c01d671f5a85116ffa5f71464f1eee1c Python 3.11.6, Qt 5.15.8, Coin 4.0.1, Vtk 9.2.5, OCC 7.7.2 Locale: German/Austria (de_AT)

`[code] OS: Ubuntu Core 20 (KDE/plasma) Word size of FreeCAD: 64-bit Version: 2023.1231.0.38924 (Git) Snap 122 Build type: Release Branch: tag: 20231231tip Hash: 7471b6a2720ee4973b9477a55713070b056c42e8 Python 3.8.10, Qt 5.15.7, Coin 4.0.1, Vtk 7.1.1, OCC 7.6.3 Locale: German/Austria (de_AT) Installed mods:

here the terminal output in snap

Program received signal SIGSEGV, Segmentation fault.

0 /lib/x86_64-linux-gnu/libc.so.6(+0x43090) [0x7f112f7cb090]

1 /lib/x86_64-linux-gnu/libc.so.6(+0x1886f5) [0x7f112f9106f5]

2 0x7f1131da4cbd in Data::IndexedName::set(char const, int, std::vector<char const, std::allocator<char const*> > const&, bool) from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x4d

3 0x7f103c97ca9e in Mesh::MeshObject::getSubElementAsMesh(char const*) const from /snap/freecad-realthunder/122/usr/lib/Mesh.so+0x3e

4 0x7f103c988f6e in Mesh::Feature::getSubObject(char const*, _object*, Base::Matrix4D, bool, int) const from /snap/freecad-realthunder/122/usr/lib/Mesh.so+0x9e

5 /snap/freecad-realthunder/122/usr/lib/Part.so(+0x337801) [0x7f112957f801]

6 0x7f11295826e5 in Part::Feature::getTopoShape(App::DocumentObject const, char const, bool, Base::Matrix4D*, App::DocumentObject**, bool, bool, bool) from /snap/freecad-realthunder/122/usr/lib/Part.so+0x415

7 0x7f112976925e in Part::Module::getShape(Py::Tuple const&, Py::Dict const&) from /snap/freecad-realthunder/122/usr/lib/Part.so+0x1ee

8 0x7f1129756153 in Part::Module::invoke_method_keyword(void*, Py::Tuple const&, Py::Dict const&) from /snap/freecad-realthunder/122/usr/lib/Part.so+0x43

9 /snap/freecad-realthunder/122/usr/lib/libFreeCADBase.so(method_keyword_call_handler+0x35a) [0x7f11301fc47a]

10 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x2a8748) [0x7f112fe50748]

11 0x7f1131cb1b62 in App::PropertyContainerPy::getCustomAttributes(char const*) const from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0xa72

12 0x7f1131cb22b7 in App::PropertyContainerPy::_getattr(char const*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x17

13 0x7f11302a27d4 in Base::PyObjectBase::__getattro(_object, _object) from /snap/freecad-realthunder/122/usr/lib/libFreeCADBase.so+0xa4

14 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyObject_LookupAttr+0x3b) [0x7f112fe0675b]

15 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x1cdd6d) [0x7f112fd75d6d]

16 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x25f547) [0x7f112fe07547]

17 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x74d6d) [0x7f112fc1cd6d]

18 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0x12fd) [0x7f112fc1e46d]

19 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x8006b) [0x7f112fc2806b]

20 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x74d6d) [0x7f112fc1cd6d]

21 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0xea8) [0x7f112fc1e018]

22 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x8006b) [0x7f112fc2806b]

23 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x2a8d37) [0x7f112fe50d37]

24 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyVectorcall_Call+0x60) [0x7f112fe50840]

25 0x7f1131c10b3e in App::FeaturePythonImp::execute() from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x18e

26 0x7f1131c12a3a in App::FeaturePythonT::execute() from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x1a

27 0x7f1131b223c2 in App::DocumentObject::recompute() from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0xc2

28 0x7f1131a9bc91 in App::Document::_recomputeFeature(App::DocumentObject*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x241

29 0x7f1131aaca89 in App::Document::recompute(std::vector<App::DocumentObject, std::allocator<App::DocumentObject> > const&, bool, bool*, int) from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x669

30 0x7f1131b9b5fb in App::DocumentPy::recompute(_object*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x2bb

31 0x7f1131b9b829 in App::DocumentPy::staticCallback_recompute(_object, _object) from /snap/freecad-realthunder/122/usr/lib/libFreeCADApp.so+0x59

32 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x2a8697) [0x7f112fe50697]

33 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyObject_MakeTpCall+0xab) [0x7f112fe50b2b]

34 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x74df3) [0x7f112fc1cdf3]

35 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0x7d86) [0x7f112fc24ef6]

36 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalCodeWithName+0x8fb) [0x7f112fd72e4b]

37 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyEval_EvalCodeEx+0x42) [0x7f112fd731d2]

38 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyEval_EvalCode+0x1f) [0x7f112fd735bf]

39 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x18c05c) [0x7f112fd3405c]

40 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyRun_StringFlags+0x79) [0x7f112fd343a9]

41 0x7f113024e0ac in Base::InterpreterSingleton::runString[abi:cxx11](char const*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADBase.so+0x6c

42 0x7f113276920c in Gui::Command::_runCommand(char const, int, Gui::Command::DoCmd_Type, char const) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x8c

43 0x7f1132769397 in Gui::Command::_doCommand(char const, int, Gui::Command::DoCmd_Type, char const, ...) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0xe7

44 0x7f11327694c7 in Gui::Command::updateActive() from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x47

45 0x7f105f43481d in SketcherGui::ViewProviderSketch::unsetEdit(int) from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0xa2d

46 0x7f1132c11e98 in Gui::ViewProvider::finishEditing() from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x38

47 0x7f11326892a6 in Gui::Document::_resetEdit() from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0xb6

48 0x7f113262f051 in Gui::Application::setEditDocument(Gui::Document*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x41

49 0x7f11326642d1 in Gui::Application::sResetEdit(_object, _object) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x31

50 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x2a8697) [0x7f112fe50697]

51 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyObject_MakeTpCall+0xab) [0x7f112fe50b2b]

52 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x74df3) [0x7f112fc1cdf3]

53 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalFrameDefault+0x7d86) [0x7f112fc24ef6]

54 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(_PyEval_EvalCodeWithName+0x8fb) [0x7f112fd72e4b]

55 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyEval_EvalCodeEx+0x42) [0x7f112fd731d2]

56 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyEval_EvalCode+0x1f) [0x7f112fd735bf]

57 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(+0x18c05c) [0x7f112fd3405c]

58 /snap/freecad-realthunder/122/usr/lib/x86_64-linux-gnu/libpython3.8.so.1.0(PyRun_StringFlags+0x79) [0x7f112fd343a9]

59 0x7f113024e0ac in Base::InterpreterSingleton::runString[abi:cxx11](char const*) from /snap/freecad-realthunder/122/usr/lib/libFreeCADBase.so+0x6c

60 0x7f113276920c in Gui::Command::_runCommand(char const, int, Gui::Command::DoCmd_Type, char const) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x8c

61 0x7f1132769397 in Gui::Command::_doCommand(char const, int, Gui::Command::DoCmd_Type, char const, ...) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0xe7

62 0x7f105f4996dd in SketcherGui::TaskDlgEditSketch::reject() from /snap/freecad-realthunder/122/usr/lib/SketcherGui.so+0xfd

63 0x7f1132b59bd5 in Gui::TaskView::TaskView::reject() from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x65

64 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5(+0x2ec622) [0x7f1130683622]

65 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x311cbc) [0x7f113137ccbc]

66 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5(+0x2ec654) [0x7f1130683654]

67 0x7f11312d1616 in QAbstractButton::clicked(bool) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x46

68 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x26688e) [0x7f11312d188e]

69 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x267d63) [0x7f11312d2d63]

70 0x7f11312d2f25 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0xe5

71 0x7f113121bdc6 in QWidget::event(QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x286

72 0x7f1131379dc3 in QPushButton::event(QEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x53

73 0x7f11311d8e53 in QApplicationPrivate::notify_helper(QObject, QEvent) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x83

74 0x7f11311e1e57 in QApplication::notify(QObject, QEvent) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x397

75 0x7f11326ff628 in Gui::GUIApplication::notify(QObject, QEvent) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x98

76 0x7f113064c0aa in QCoreApplication::notifyInternal2(QObject, QEvent) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x12a

77 0x7f11311e1157 in QApplicationPrivate::sendMouseEvent(QWidget, QMouseEvent, QWidget, QWidget, QWidget**, QPointer&, bool, bool) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x1b7

78 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x1cbfb4) [0x7f1131236fb4]

79 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x1cf2d4) [0x7f113123a2d4]

80 0x7f11311d8e53 in QApplicationPrivate::notify_helper(QObject, QEvent) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x83

81 0x7f11311e1c68 in QApplication::notify(QObject, QEvent) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x1a8

82 0x7f11326ff628 in Gui::GUIApplication::notify(QObject, QEvent) from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x98

83 0x7f113064c0aa in QCoreApplication::notifyInternal2(QObject, QEvent) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x12a

84 0x7f1130a717e0 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0x660

85 0x7f1130a72e85 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0x265

86 0x7f1130a496dc in QWindowSystemInterface::sendWindowSystemEvents(QFlags) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0xac

87 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5(+0x79e5e) [0x7f1124ec7e5e]

88 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x27d) [0x7f112d6e317d]

89 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x52400) [0x7f112d6e3400]

90 /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x33) [0x7f112d6e34a3]

91 0x7f11306a6f82 in QEventDispatcherGlib::processEvents(QFlags) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x62

92 0x7f113064abab in QEventLoop::exec(QFlags) from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x12b

93 0x7f1130652d54 in QCoreApplication::exec() from /snap/freecad-realthunder/122/kf5/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x94

94 0x7f113263da24 in Gui::Application::runApplication() from /snap/freecad-realthunder/122/usr/lib/libFreeCADGui.so+0x404

95 /snap/freecad-realthunder/122/usr/bin/FreeCADLink(+0xa380) [0x558a90dc0380]

96 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f112f7ac083]

97 /snap/freecad-realthunder/122/usr/bin/FreeCADLink(+0xa79e) [0x558a90dc079e]

mzient commented 8 months ago

I can confirm that the newest release is barely usable due to crashes in sketcher. I could use the previous one for hours without any serious incidents.

m-sundman commented 8 months ago

@realthunder Are those edit->timer.start(100) introducing race conditions?

realthunder commented 8 months ago

Why would that be? The crash happens because of de-syncrhonization of the sketch geometry and its visual representation. The timer is meant to delay visual update in (potentially recursive) UI event handling.

m-sundman commented 8 months ago

Why would that be? [...] The timer is meant to delay visual update [...]

It just looks like it, although I'm not familiar with the code. Anything that relies on timing (which is what "delay" presumably implies) could cause a race condition. What if the scheduler happens to not execute whatever other thread that is supposed to execute before the delayed thread? E.g., maybe there's a 150 ms scheduling interruption (say, because of page swapping), so that 100 ms delay is completely skipped. Does it then crash? If you want 2 threads to execute in a specific order then maybe have one of them wait for a signal from the other?

realthunder commented 8 months ago

E.g., maybe there's a 150 ms scheduling interruption (say, because of page swapping), so that 100 ms delay is completely skipped. Does it then crash

This is indeed possible. But it is not a race condition because there is only single thread execution. This is a state inconsistency problem which exists long time in Sketcher code. Upstream Sketcher has a huge refactor which I only ported part of it. Not sure if they have fundamentally solved it. A proper solution would be to guard any App code access from Gui side and check for update. There is just too many such kind of access without guard in the original code before the refactor.