[okular] [Bug 388228] New: Okular crashes when annotating a piece of text

Mon Dec 25 19:56:58 UTC 2017

https://bugs.kde.org/show_bug.cgi?id=388228

            Bug ID: 388228
           Summary: Okular crashes when annotating a piece of text
           Product: okular
           Version: 1.1.3
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: devel at the-user.org
  Target Milestone: ---

Hi, I’m using Kubuntu 17.10 with Okular 1.1.3. When highlighting a piece of
text (markup annotation) okular crashes from time to time. It is not easily
reproducible (when I try to highlight the same word again after the crash, it
usually works), but it occurs quite often (after some dozens of annotations
okular crashes again). I have the problem since upgrading from Kubuntu 17.04 to
17.10. The crash occurs when releasing the mouse button after having marked a
segment of the text.

This is the backtrace which I get from gdb:
Thread 1 "okular" received signal SIGSEGV, Segmentation fault.
0x00007fffe00169c0 in ?? ()

#0  0x00007fffe00169c0 in ?? ()
#1  0x00007fffdab5a286 in MouseAnnotation::cursor (this=0x5555574cb090) at
./ui/pageviewmouseannotation.cpp:379
#2  0x00007fffdab5f88c in PageView::updateCursor
(this=this at entry=0x5555574dcd50, p=...) at ./ui/pageview.cpp:4032
#3  0x00007fffdab5f93a in PageView::updateCursor (this=0x5555574dcd50) at
./ui/pageview.cpp:3997
#4  0x00007fffdab51d1b in PageViewAnnotator::slotToolSelected
(this=0x555557a6f020, toolID=-1) at ./ui/pageviewannotator.cpp:981
#5  0x00007ffff47fc9ff in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffdab7b6ba in PageViewToolBar::toolSelected (_t1=<optimized out>,
this=0x555557aa3b10) at
./obj-x86_64-linux-gnu/okularpart_autogen/include/moc_pageviewutils.cpp:340
#7  ToolBarPrivate::selectButton (this=0x555557ad22c0,
button=button at entry=0x555557a93180) at ./ui/pageviewutils.cpp:927
#8  0x00007fffdab7b9d6 in ToolBarPrivate::selectButton (button=0x555557a93180,
this=<optimized out>) at ./ui/pageviewutils.cpp:610
#9  PageViewToolBar::selectButton (this=0x555557aa3b10, id=id at entry=-1) at
./ui/pageviewutils.cpp:610
#10 0x00007fffdab533af in PageViewAnnotator::detachAnnotation
(this=0x555557a6f020) at ./ui/pageviewannotator.cpp:1077
#11 PageViewAnnotator::performRouteMouseOrTabletEvent
(this=this at entry=0x555557a6f020, eventType=@0x7fffffffca80:
AnnotatorEngine::Release, button=@0x7fffffffca84: AnnotatorEngine::Left,
pos=..., 
    item=item at entry=0x555557b335b0) at ./ui/pageviewannotator.cpp:867
#12 0x00007fffdab53430 in PageViewAnnotator::routeMouseEvent
(this=0x555557a6f020, e=e at entry=0x7fffffffd1f0, item=0x555557b335b0) at
./ui/pageviewannotator.cpp:881
#13 0x00007fffdab72449 in PageView::mouseReleaseEvent (this=0x5555574dcd50,
e=0x7fffffffd1f0) at ./ui/pageview.cpp:2443
#14 0x00007ffff5812dc8 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007ffff58f22de in QFrame::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fffdab74f24 in PageView::viewportEvent (this=0x5555574dcd50,
e=0x7fffffffd1f0) at ./ui/pageview.cpp:3323
#17 0x00007ffff47cdacc in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007ffff57d2445 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007ffff57da28f in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007ffff47cdde8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ffff57d9262 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007ffff582d94b in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007ffff582ffba in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007ffff57d246c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007ffff57d9d34 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007ffff47cdde8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007ffff5016f43 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#28 0x00007ffff5018a25 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#29 0x00007ffff4ff0cab in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#30 0x00007fffe7fb65a0 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#31 0x00007fffeecc1fb7 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fffeecc21f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fffeecc227c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007ffff482647f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007ffff47cbe3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007ffff47d4da4 in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x0000555555560087 in main (argc=<optimized out>, argv=<optimized out>) at
./shell/main.cpp:82

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