https://bugs.kde.org/show_bug.cgi?id=393217

Antti Savolainen <antti.s...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
                 CC|                            |antti.s...@gmail.com
             Status|NEEDSINFO                   |CONFIRMED
         Resolution|WAITINGFORINFO              |---

--- Comment #3 from Antti Savolainen <antti.s...@gmail.com> ---
Thanks for the detailed steps I was able to confirm this.
https://webmshare.com/0BVnw 

(gdb) bt
#0  0x00007ffff44f40bb in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007ffff44f5f5d in __GI_abort () at abort.c:90
#2  0x00007ffff453e28d in __libc_message (action=action@entry=do_abort,
fmt=fmt@entry=0x7ffff4665528 "*** Error in `%s': %s: 0x%s ***\n") at
../sysdeps/posix/libc_fatal.c:181
#3  0x00007ffff454564a in malloc_printerr (action=<optimized out>,
str=0x7ffff4665888 "free(): invalid next size (normal)", ptr=<optimized out>,
ar_ptr=<optimized out>) at malloc.c:5426
#4  0x00007ffff454773e in _int_free (av=0x7ffff4897c20 <main_arena>,
p=<optimized out>, have_lock=0) at malloc.c:4175
#5  0x00007ffff454c44e in __GI___libc_free (mem=<optimized out>) at
malloc.c:3145
#6  0x00007ffff56c62b5 in QImageData::~QImageData() () at
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#7  0x00007ffff56c6327 in QImage::~QImage() () at
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#8  0x00007ffff75c117d in KisStopGradientSliderWidget::paintEvent(QPaintEvent*)
(this=0x55556130c670, pe=0x7fffffffa930) at
./libs/ui/widgets/kis_stopgradient_slider_widget.cpp:117
#9  0x00007ffff5e7edc8 in QWidget::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007ffff5e3e46c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007ffff5e45d34 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007ffff76aa495 in KisApplication::notify(QObject*, QEvent*)
(this=0x7fffffffdda0, receiver=0x55556130c670, event=0x7fffffffa930) at
./libs/ui/KisApplication.cpp:652
#13 0x00007ffff50c3de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ffff5e77f6a in QWidgetPrivate::sendPaintEvent(QRegion const&) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007ffff5e7852a in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007ffff5e79190 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#44 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007ffff5e79319 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007ffff5e78136 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#47 0x00007ffff5e4da84 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#48 0x00007ffff5e4dcc5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007ffff5e6753f in QWidgetPrivate::syncBackingStore() () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007ffff5e7ef38 in QWidget::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007ffff5f6cbab in QMainWindow::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#52 0x00007ffff6aab839 in KMainWindow::event(QEvent*) (this=0x555556b4eab0,
ev=0x555560d80f70) at ./libs/widgetutils/xmlgui/kmainwindow.cpp:780
#53 0x00007ffff6ae33d1 in KXmlGuiWindow::event(QEvent*) (this=0x555556b4eab0,
ev=0x555560d80f70) at ./libs/widgetutils/xmlgui/kxmlguiwindow.cpp:125
#54 0x00007ffff5e3e46c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#55 0x00007ffff5e45d34 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#56 0x00007ffff76aa495 in KisApplication::notify(QObject*, QEvent*)
(this=0x7fffffffdda0, receiver=0x555556b4eab0, event=0x555560d80f70) at
./libs/ui/KisApplication.cpp:652
#57 0x00007ffff50c3de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#58 0x00007ffff50c655d in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#59 0x00007ffff511ce53 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#60 0x00007fffec790fb7 in g_main_context_dispatch () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007fffec7911f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007fffec79127c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007ffff511c47f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#64 0x00007ffff50c1e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
---Type <return> to continue, or q <return> to quit---
#65 0x00007ffff50cada4 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#66 0x0000555555849423 in main(int, char**) (argc=1, argv=0x7fffffffdf28) at
./krita/main.cc:361

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