https://bugs.kde.org/show_bug.cgi?id=311264

Jaak Ristioja <j...@ristioja.ee> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDSINFO                   |REPORTED
     Ever confirmed|1                           |0
         Resolution|WAITINGFORINFO              |---

--- Comment #5 from Jaak Ristioja <j...@ristioja.ee> ---
(In reply to Justin Zobel from comment #4)
> As it has been a while since this was reported, can you please test and
> confirm if this issue is still occurring or if this bug report can be marked
> as resolved.

How many times do I need to confirm? :D

I now got the following crash while trying to reproduce this. It didn't crash
immediately nor flicker or scroll, but when I tried to zoom out:

Application: Step (step), signal: Floating point exception
Content of s_kcrashErrorMessage: (null)
[KCrash Handler]
#6  0x00007f4745936d13 in QStyle::sliderPositionFromValue (min=<optimized out>,
max=<optimized out>, logicalValue=<optimized out>, span=<optimized out>,
upsideDown=false) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/styles/qstyle.cpp:2269
#7  0x00007f474593e0e2 in QCommonStyle::subControlRect (this=0x55e159cab000,
cc=<optimized out>, opt=0x7ffe5a47f0e0, sc=QStyle::SC_ScrollBarFirst,
widget=<optimized out>) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/styles/qcommonstyle.cpp:4127
#8  0x00007f474594f969 in QCommonStyle::drawComplexControl
(this=this@entry=0x55e159cab000, cc=cc@entry=QStyle::CC_ScrollBar,
opt=opt@entry=0x7ffe5a47f390, p=p@entry=0x7ffe5a47f388,
widget=widget@entry=0x55e159e3c380) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/styles/qcommonstyle.cpp:3352
#9  0x00007f473e0d74a8 in Breeze::Style::drawScrollBarComplexControl
(this=0x55e159cab000, option=0x7ffe5a47f390, painter=0x7ffe5a47f388,
widget=0x55e159e3c380) at
/var/tmp/portage/kde-plasma/breeze-5.20.4/work/breeze-5.20.4/kstyle/breezestyle.cpp:6583
#10 0x00007f473e0d6f10 in std::function<bool (Breeze::Style const&,
QStyleOptionComplex const*, QPainter*, QWidget
const*)>::operator()(Breeze::Style const&, QStyleOptionComplex const*,
QPainter*, QWidget const*) const (__args#3=<optimized out>, __args#2=<optimized
out>, __args#1=<optimized out>, __args#0=..., this=0x7ffe5a47f320) at
/usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/g++-v10/bits/std_function.h:248
#11 Breeze::Style::drawComplexControl (this=0x55e159cab000,
element=QStyle::CC_ScrollBar, option=0x7ffe5a47f390, painter=0x7ffe5a47f388,
widget=0x55e159e3c380) at
/var/tmp/portage/kde-plasma/breeze-5.20.4/work/breeze-5.20.4/kstyle/breezestyle.cpp:978
#12 0x00007f4745a5bdb3 in QScrollBar::paintEvent (this=0x55e159e3c380) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/widgets/qscrollbar.cpp:540
#13 0x00007f4745908c68 in QWidget::event (this=0x55e159e3c380,
event=0x7ffe5a47f580) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:9019
#14 0x00007f47458c910f in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x55e159e3c380, e=0x7ffe5a47f580) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qapplication.cpp:3632
#15 0x00007f4744e7af48 in QCoreApplication::notifyInternal2
(receiver=0x55e159e3c380, event=0x7ffe5a47f580) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1063
#16 0x00007f4745900ed6 in QWidgetPrivate::sendPaintEvent
(this=this@entry=0x55e15a0a6450, toBePainted=...) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5467
#17 0x00007f4745901712 in QWidgetPrivate::drawWidget (this=0x55e15a0a6450,
pdev=0x55e15a0d9e50, rgn=..., offset=..., flags=..., sharedPainter=<optimized
out>, repaintManager=<optimized out>) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5417
#18 0x00007f4745902a2f in QWidgetPrivate::paintSiblingsRecursive
(this=this@entry=0x55e159e3c1c0, pdev=pdev@entry=0x55e15a0d9e50, siblings=...,
index=<optimized out>, rgn=..., offset=..., flags=..., sharedPainter=0x0,
repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5598
#19 0x00007f474590142b in QWidgetPrivate::drawWidget (this=0x55e159e3c1c0,
pdev=0x55e15a0d9e50, rgn=..., offset=..., flags=..., sharedPainter=<optimized
out>, repaintManager=<optimized out>) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5458
#20 0x00007f4745902a2f in QWidgetPrivate::paintSiblingsRecursive
(this=0x55e159f86e80, pdev=0x55e15a0d9e50, siblings=..., index=<optimized out>,
rgn=..., offset=..., flags=..., sharedPainter=0x0,
repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5598
#21 0x00007f474590284d in QWidgetPrivate::paintSiblingsRecursive
(this=this@entry=0x55e159f86e80, pdev=pdev@entry=0x55e15a0d9e50, siblings=...,
index=5, rgn=..., offset=..., flags=..., sharedPainter=0x0,
repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5584
#22 0x00007f474590142b in QWidgetPrivate::drawWidget (this=0x55e159f86e80,
pdev=0x55e15a0d9e50, rgn=..., offset=..., flags=..., sharedPainter=<optimized
out>, repaintManager=<optimized out>) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5458
#23 0x00007f4745902a2f in QWidgetPrivate::paintSiblingsRecursive
(this=0x55e159c97c20, pdev=0x55e15a0d9e50, siblings=..., index=<optimized out>,
rgn=..., offset=..., flags=..., sharedPainter=0x0,
repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5598
#24 0x00007f474590284d in QWidgetPrivate::paintSiblingsRecursive
(this=0x55e159c97c20, pdev=0x55e15a0d9e50, siblings=..., index=37, rgn=...,
offset=..., flags=..., sharedPainter=0x0, repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5584
#25 0x00007f474590284d in QWidgetPrivate::paintSiblingsRecursive
(this=0x55e159c97c20, pdev=0x55e15a0d9e50, siblings=..., index=38, rgn=...,
offset=..., flags=..., sharedPainter=0x0, repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5584
#26 0x00007f474590284d in QWidgetPrivate::paintSiblingsRecursive
(this=0x55e159c97c20, pdev=0x55e15a0d9e50, siblings=..., index=39, rgn=...,
offset=..., flags=..., sharedPainter=0x0, repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5584
#27 0x00007f474590284d in QWidgetPrivate::paintSiblingsRecursive
(this=this@entry=0x55e159c97c20, pdev=pdev@entry=0x55e15a0d9e50, siblings=...,
index=41, rgn=..., offset=..., flags=..., sharedPainter=0x0,
repaintManager=0x55e15a355bf0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5584
#28 0x00007f474590142b in QWidgetPrivate::drawWidget
(this=this@entry=0x55e159c97c20, pdev=0x55e15a0d9e50, rgn=..., offset=...,
flags=..., flags@entry=..., sharedPainter=sharedPainter@entry=0x0,
repaintManager=<optimized out>) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:5458
#29 0x00007f47458d9824 in QWidgetRepaintManager::paintAndFlush (this=<optimized
out>) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidgetrepaintmanager.cpp:1009
#30 0x00007f4745909391 in QWidget::event (this=this@entry=0x55e159c89120,
event=event@entry=0x55e15a068790) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:8964
#31 0x00007f4745a14cdc in QMainWindow::event (this=this@entry=0x55e159c89120,
event=event@entry=0x55e15a068790) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/widgets/qmainwindow.cpp:1341
#32 0x00007f47461deeed in KMainWindow::event (this=this@entry=0x55e159c89120,
ev=ev@entry=0x55e15a068790) at
/var/tmp/portage/kde-frameworks/kxmlgui-5.76.0/work/kxmlgui-5.76.0/src/kmainwindow.cpp:911
#33 0x00007f474620d399 in KXmlGuiWindow::event (this=0x55e159c89120,
ev=0x55e15a068790) at
/var/tmp/portage/kde-frameworks/kxmlgui-5.76.0/work/kxmlgui-5.76.0/src/kxmlguiwindow.cpp:109
#34 0x00007f47458c910f in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x55e159c89120, e=0x55e15a068790) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qapplication.cpp:3632
#35 0x00007f4744e7af48 in QCoreApplication::notifyInternal2
(receiver=0x55e159c89120, event=0x55e15a068790) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1063
#36 0x00007f4744e7da6a in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x55e159c89120, event_type=77, data=0x55e159c14720) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1817
#37 0x00007f4745bda95f in QGraphicsViewPrivate::dispatchPendingUpdateRequests
(this=<optimized out>, this=<optimized out>) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/include/QtWidgets/5.15.2/QtWidgets/private/../../../../../src/widgets/graphicsview/qgraphicsview_p.h:191
#38 QGraphicsViewPrivate::dispatchPendingUpdateRequests (this=0x55e159f86e80)
at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/include/QtWidgets/5.15.2/QtWidgets/private/../../../../../src/widgets/graphicsview/qgraphicsview_p.h:186
#39 QGraphicsScenePrivate::_q_processDirtyItems (this=0x55e159fc8810) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/graphicsview/qgraphicsscene.cpp:516
#40 0x00007f4744ea567a in QObject::event (this=0x55e159fe1620,
e=0x55e15a1250a0) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qobject.cpp:1314
#41 0x00007f47458c910f in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x55e159fe1620, e=0x55e15a1250a0) at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qapplication.cpp:3632
#42 0x00007f4744e7af48 in QCoreApplication::notifyInternal2
(receiver=0x55e159fe1620, event=0x55e15a1250a0) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1063
#43 0x00007f4744e7da6a in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x55e159c14720) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1817
#44 0x00007f4744ecc603 in postEventSourceDispatch (s=0x55e159c938d0) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qeventdispatcher_glib.cpp:277
#45 0x00007f474153239b in g_main_dispatch (context=0x7f4738005000) at
../glib-2.64.5/glib/gmain.c:3309
#46 g_main_context_dispatch (context=0x7f4738005000) at
../glib-2.64.5/glib/gmain.c:3974
#47 0x00007f4741532648 in g_main_context_iterate
(context=context@entry=0x7f4738005000, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
../glib-2.64.5/glib/gmain.c:4047
#48 0x00007f47415326ff in g_main_context_iteration (context=0x7f4738005000,
may_block=may_block@entry=1) at ../glib-2.64.5/glib/gmain.c:4108
#49 0x00007f4744ecbcbb in QEventDispatcherGlib::processEvents
(this=0x55e159c97360, flags=...) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#50 0x00007f4744e7943a in QEventLoop::exec (this=this@entry=0x7ffe5a480de0,
flags=..., flags@entry=...) at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/global/qflags.h:69
#51 0x00007f4744e815d0 in QCoreApplication::exec () at
/var/tmp/portage/dev-qt/qtcore-5.15.2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/global/qflags.h:121
#52 0x00007f47452a34ac in QGuiApplication::exec () at
/var/tmp/portage/dev-qt/qtgui-5.15.2/work/qtbase-everywhere-src-5.15.2/src/gui/kernel/qguiapplication.cpp:1867
#53 0x00007f47458c9085 in QApplication::exec () at
/var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qapplication.cpp:2824
#54 0x000055e158bb26be in main (argc=<optimized out>, argv=<optimized out>) at
/var/tmp/portage/kde-apps/step-20.08.3/work/step-20.08.3/step/main.cc:97
[Inferior 1 (process 177986) detached]

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