https://bugs.kde.org/show_bug.cgi?id=422665

            Bug ID: 422665
           Summary: kig crash on SVG export
           Product: kig
           Version: unspecified
          Platform: Debian stable
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: david.narv...@computer.org
          Reporter: a...@laxu.de
  Target Milestone: ---

Application: kig (20.04.0)

Qt Version: 5.12.5
Frameworks Version: 5.70.0
Operating System: Linux 5.6.0-2-amd64 x86_64
Distribution: Debian GNU/Linux bullseye/sid

-- Information about the crash:
- What I was doing when the application crashed:

Try to export a document with kig 20.04 as SVG and kig crashes every time.

The crash can be reproduced every time.

-- Backtrace:
Application: Kig (kig), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9db9650800 (LWP 263683))]

Thread 2 (Thread 0x7f9db6654700 (LWP 263685)):
#0  __GI___libc_read (nbytes=16, buf=0x7f9db6653b60, fd=9) at
../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=9, buf=0x7f9db6653b60, nbytes=16) at
../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9dbbe38f5f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9dbbdf134e in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9dbbdf17a2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9dbbdf191f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9dbd85f7db in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9dbd8086db in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9dbd6496f1 in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9dbcbb04e6 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f9dbd64a872 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f9dbc77ef27 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#12 0x00007f9dbd2de31f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9db9650800 (LWP 263683)):
[KCrash Handler]
#4  0x00007f9dbd8e5680 in QArrayData::shared_null () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9db4d4be4f in SVGExporter::run (this=<optimized out>, part=...,
w=...) at ./filters/svgexporter.cc:73
#6  0x00007f9dbd8344e8 in QMetaObject::activate(QObject*, int, int, void**) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9dbe1fe812 in QAction::triggered(bool) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f9dbe200e52 in QAction::activate(QAction::ActionEvent) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f9dbe3824e2 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f9dbe389b5a in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f9dbe38ab82 in QMenu::mouseReleaseEvent(QMouseEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f9dbe246776 in QWidget::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f9dbe38d173 in QMenu::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f9dbe204c32 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f9dbe20e3e3 in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f9dbd809a52 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f9dbe20d4f3 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f9dbe2629c4 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f9dbe264ec4 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f9dbe204c32 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f9dbe20e190 in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f9dbd809a52 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f9dbdbe8a13 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#24 0x00007f9dbdbea26b in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#25 0x00007f9dbdbc4ecb in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#26 0x00007f9db9214cda in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#27 0x00007f9dbbdf160d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f9dbbdf1890 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f9dbbdf191f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f9dbd85f7c1 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f9dbd8086db in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f9dbd810182 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x0000564b06004783 in main (argc=<optimized out>, argv=<optimized out>) at
./kig/main.cpp:147
[Inferior 1 (process 263683) detached]

Possible duplicates by query: bug 422200, bug 418660, bug 409497, bug 381101,
bug 377656.

Reported using DrKonqi

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