Crash on changing fillet radius

[chrisb]

With the model from this post: https://forum.freecadweb.org/viewtopic. ... 64#p445631 FreeCAD crashes when I edit Fillet004.
Please confirm.

To reproduce:
- open the file Fertig.FCStd
- double click Fillet004
- change radius to 13mm

-> silent crash of FreeCAD.

OS: macOS 10.15
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22846 (Git)
Build type: Release
Branch: master
Hash: 1f46b72491a0008384a6db4f2615a656249f6f08
Python version: 3.8.6
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.4.0
Locale: C/Default (C)

[Bei3lay]

Confirm. I get segmentation fault on Linux Mint.

OS: Linux Mint 19.3 (X-Cinnamon/cinnamon)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22845 (Git)
Build type: Debug
Branch: master
Hash: bc2d3e9d2b60ffa32888da422f091c5e51a216c3
Python version: 3.6.9
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

[Vincent B]

comfirm.
...
OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22846 (Git)
Build type: Release
Branch: master
Hash: 1f46b72491a0008384a6db4f2615a656249f6f08
Python version: 3.6.8
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: French/France (fr_FR)

[Bei3lay]

It seems that the problem appears when

Code: Select all

mkFillet.Build();

is executed from https://github.com/FreeCAD/FreeCAD/blob ... t.cpp#L100

The whole thing is inside try..catch statement, but I guess the exception is not OpenCascade's Standard_Failure.

[openBrain]

Confirmed. Here is the call trace :

Code: Select all

Program received signal SIGSEGV, Segmentation fault.
#0  /lib/x86_64-linux-gnu/libc.so.6(+0x3efd0) [0x7fdc999b7fd0]
#1  0x7fdc5046d0ca in BRep_Tool::Curve(TopoDS_Edge const&, TopLoc_Location&, double&, double&) from /usr/lib/x86_64-linux-gnu/libTKBRep.so.7+0x2a
#2  0x7fdc50470556 in BRep_Tool::Curve(TopoDS_Edge const&, double&, double&) from /usr/lib/x86_64-linux-gnu/libTKBRep.so.7+0x46
#3  0x7fdc533b0ef5 in ChFi3d_Builder::PerformIntersectionAtEnd(int) from /usr/lib/x86_64-linux-gnu/libTKFillet.so.7+0x3b05
#4  0x7fdc533b9307 in ChFi3d_Builder::PerformOneCorner(int, bool) from /usr/lib/x86_64-linux-gnu/libTKFillet.so.7+0x1097
#5  0x7fdc53357218 in ChFi3d_Builder::PerformFilletOnVertex(int) from /usr/lib/x86_64-linux-gnu/libTKFillet.so.7+0x4e8
#6  0x7fdc533581d1 in ChFi3d_Builder::Compute() from /usr/lib/x86_64-linux-gnu/libTKFillet.so.7+0xe31
#7  0x7fdc53510283 in BRepFilletAPI_MakeFillet::Build() from /usr/lib/x86_64-linux-gnu/libTKFillet.so.7+0x33
#8  0x7fdbf6576c00 in PartDesign::Fillet::execute() from /home/OB/dev/FCOB/FCOBBuild/Mod/PartDesign/_PartDesign.so+0x34e
#9  0x7fdc9cfb34ef in App::DocumentObject::recompute() from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADApp.so+0xd1
#10  0x7fdc53b21601 in Part::Feature::recompute() from /home/OB/dev/FCOB/FCOBBuild/Mod/Part/Part.so+0x1b
#11  0x7fdc9cebde06 in App::Document::_recomputeFeature(App::DocumentObject*) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADApp.so+0x1e0
#12  0x7fdc9cebeb03 in App::Document::recomputeFeature(App::DocumentObject*, bool) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADApp.so+0x107
#13  0x7fdbf5ec2faf in PartDesignGui::TaskFilletParameters::onLengthChanged(double) from /home/OB/dev/FCOB/FCOBBuild/Mod/PartDesign/PartDesignGui.so+0x95
#14  /home/OB/dev/FCOB/FCOBBuild/Mod/PartDesign/PartDesignGui.so(+0x379457) [0x7fdbf5ec3457]
#15  0x7fdc9a5c4555 in QMetaObject::activate(QObject*, int, int, void**) from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x865
#16  0x7fdc9ece7ecf in Gui::QuantitySpinBox::valueChanged(double) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADGui.so+0x57
#17  0x7fdc9ece58ee in Gui::QuantitySpinBox::updateFromCache(bool) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADGui.so+0xe6
#18  0x7fdc9ece6266 in Gui::QuantitySpinBox::stepBy(int) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADGui.so+0x1bc
#19  /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x2f13dd) [0x7fdc9b4b03dd]
#20  0x7fdc9b4b07f7 in QAbstractSpinBox::mousePressEvent(QMouseEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x187
#21  0x7fdc9b35299f in QWidget::event(QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0xb4f
#22  0x7fdc9b4b3cb5 in QAbstractSpinBox::event(QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0xc5
#23  0x7fdc9ece6af3 in Gui::QuantitySpinBox::event(QEvent*) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADGui.so+0x23
#24  0x7fdc9b31383c in QApplicationPrivate::notify_helper(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x9c
#25  0x7fdc9b31b65f in QApplication::notify(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x7ff
#26  0x7fdc9e74e25a in Gui::GUIApplication::notify(QObject*, QEvent*) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADGui.so+0x10e
#27  0x7fdc9a5958d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x118
#28  0x7fdc9b31a632 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x1d2
#29  /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x1ae16b) [0x7fdc9b36d16b]
#30  /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5(+0x1b07da) [0x7fdc9b36f7da]
#31  0x7fdc9b31383c in QApplicationPrivate::notify_helper(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x9c
#32  0x7fdc9b31b104 in QApplication::notify(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5+0x2a4
#33  0x7fdc9e74e25a in Gui::GUIApplication::notify(QObject*, QEvent*) from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADGui.so+0x10e
#34  0x7fdc9a5958d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x118
#35  0x7fdc9ab57583 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0x6f3
#36  0x7fdc9ab59055 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0x135
#37  0x7fdc9ab302eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5+0xab
#38  /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5(+0x9f260) [0x7fdc8ac02260]
#39  /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x2e7) [0x7fdc94edd417]
#40  /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x4c650) [0x7fdc94edd650]
#41  /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x2c) [0x7fdc94edd6dc]
#42  0x7fdc9a5ee88f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x5f
#43  0x7fdc9a59390a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x13a
#44  0x7fdc9a59c9b4 in QCoreApplication::exec() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0x94
#45  0x7fdc9e613560 in Gui::Application::runApplication() from /home/OB/dev/FCOB/FCOBBuild/lib/libFreeCADGui.so+0x23f6
#46  bin/FreeCAD(+0x889d) [0x55b910d4a89d]
#47  /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7fdc9999ab97]
#48  bin/FreeCAD(+0x7b6a) [0x55b910d49b6a]

[papyblaise]

I can do a R14 fillet , not whith Fillet but whith Sketch and Pocket
or more if you accept nonconcentric radiies
the problem is at the cross between the cylinder and the square

[rakela]

confirmd

OS: macOS High Sierra (10.13)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22894 (Git)
Build type: Release
Branch: master
Hash: 9eb080488d970d313c538473e7272117ea0a7cd1
Python version: 3.8.6
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.4.0
Locale: C/Default (C)

[chrisb]

Thanks for all the reports back.
Uwe, you worked on the fillets, care to take a look?

pinged by pinger macro

pinged by pinger macro

Or should I create a ticket?

[uwestoehr]

Uwe, you worked on the fillets, care to take a look?

I would have a look but cannot promise I will find time soon. In any case please create a bug and CC me there.

[wmayer]

Or should I create a ticket?

I don't think there is much we can do. When you look at the call stack you see that it crashes deep inside OCC code and IIRC I had a very similar call stack for another project and the reason was that a null handle was de-referenced.

So, it's OCC to blame for this crash and needs to be fixed upstream.

Since OCCT 7.5 has been officially released it might be worth to check with this version if the fillet operation still crashes.