https://bugs.kde.org/show_bug.cgi?id=439697

--- Comment #8 from Ömer Fadıl USTA <omeru...@gmail.com> ---
Steps to reproduce bug : 
1- Open the sample ( which i uploaded with this bug entry ) with gwenview
2- Pres ctrl 0 or rightclick and select Actual Size
3- Keep pressed and hold Ctrl Shift R about 2 minutes
4- it will crash

My crash backtrace is : 

Application: Gwenview (gwenview), signal: Segmentation fault
Content of s_kcrashErrorMessage: {_M_t = {<std::__uniq_ptr_impl<char,
std::default_delete<char []> >> = {_M_t = std::tuple containing = {[1] = 0x0,
[2] = {<No data fields>}}}, <No data fields>}}
[KCrash Handler]
#5  0x00007fc51c3f848d in __memmove_avx_unaligned_erms () from
/usr/lib/libc.so.6
#6  0x00007fc51d172b93 in QImage::copy(QRect const&) const () from
/usr/lib/libQt5Gui.so.5
#7  0x00007fc51f4c3c4a in Gwenview::RasterImageItem::paint
(this=0x565102da4850, painter=0x7ffc33d5eba0) at
/home/kde-dev/kde/src/gwenview/lib/documentview/rasterimageitem.cpp:106
#8  0x00007fc51db62338 in ?? () from /usr/lib/libQt5Widgets.so.5
#9  0x00007fc51db63330 in ?? () from /usr/lib/libQt5Widgets.so.5
#10 0x00007fc51db6249b in ?? () from /usr/lib/libQt5Widgets.so.5
#11 0x00007fc51db63330 in ?? () from /usr/lib/libQt5Widgets.so.5
#12 0x00007fc51db6249b in ?? () from /usr/lib/libQt5Widgets.so.5
#13 0x00007fc51db38b01 in ?? () from /usr/lib/libQt5Widgets.so.5
#14 0x00007fc51dbc976c in QGraphicsEffectSource::draw(QPainter*) () from
/usr/lib/libQt5Widgets.so.5
#15 0x00007fc51db6312e in ?? () from /usr/lib/libQt5Widgets.so.5
#16 0x00007fc51db86ad4 in QGraphicsView::paintEvent(QPaintEvent*) () from
/usr/lib/libQt5Widgets.so.5
#17 0x00007fc51d86c54c in QWidget::event(QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#18 0x00007fc51d91bc53 in QFrame::event(QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#19 0x00007fc51ca3232a in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /usr/lib/libQt5Core.so.5
#20 0x00007fc51d8362b5 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#21 0x00007fc51ca335aa in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#22 0x00007fc51d86026c in QWidgetPrivate::sendPaintEvent(QRegion const&) ()
from /usr/lib/libQt5Widgets.so.5
#23 0x00007fc51d861602 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*,
QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#24 0x00007fc51d841b87 in ?? () from /usr/lib/libQt5Widgets.so.5
#25 0x00007fc51d86c8c5 in QWidget::event(QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#26 0x00007fc51ed0af97 in KXmlGuiWindow::event (this=0x565102b88ae0,
ev=0x565103377a00) at /home/kde-dev/kde/src/kxmlgui/src/kxmlguiwindow.cpp:220
#27 0x00007fc51d8362c6 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#28 0x00007fc51ca335aa in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#29 0x00007fc51ca340a9 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#30 0x00007fc51db6dadf in ?? () from /usr/lib/libQt5Widgets.so.5
#31 0x00007fc51ca577d6 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#32 0x00007fc51d8362c6 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#33 0x00007fc51ca335aa in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#34 0x00007fc51ca340a9 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#35 0x00007fc51ca7b678 in ?? () from /usr/lib/libQt5Core.so.5
#36 0x00007fc51aa64163 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#37 0x00007fc51aaba9e9 in ?? () from /usr/lib/libglib-2.0.so.0
#38 0x00007fc51aa616c5 in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#39 0x00007fc51ca7f57a in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#40 0x00007fc51ca2b88b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#41 0x00007fc51ca36fd7 in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#42 0x0000565100d304ed in main (argc=<optimized out>, argv=0x7ffc33d5fbe8) at
/home/kde-dev/kde/src/gwenview/app/main.cpp:205
[Inferior 1 (process 559583) detached]

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