https://bugs.kde.org/show_bug.cgi?id=416051

            Bug ID: 416051
           Summary: Crash deep in Qt when showing completion
           Product: kdevelop
           Version: unspecified
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdevelop-bugs-n...@kde.org
          Reporter: aleix...@gmail.com
  Target Milestone: ---

Application: kdevelop (5.4.40)
 (Compiled from sources)
Qt Version: 5.14.0
Frameworks Version: 5.66.0
Operating System: Linux 5.4.8-arch1-1 x86_64
Windowing system: Wayland
Distribution: "Arch Linux"

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

It doesn't really happen all the time, just quite often.  see from other bg
repots that it's possibly something upstream but it's definitely a problem for
KDevelop' usage.

The crash can be reproduced sometimes.

-- Backtrace (Reduced):
#8  0x00007ff965c3dd4c in qt_message_fatal (context=..., message=...) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qlogging.cpp:1894
#9  0x00007ff965c3ea0d in QMessageLogger::fatal
(this=this@entry=0x7fff3f0b8b80, msg=msg@entry=0x7ff965f463a8 "ASSERT failure
in %s: \"%s\", file %s, line %d") at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qlogging.cpp:893
#10 0x00007ff965c37e6c in qt_assert_x (where=where@entry=0x7ff967285e50
"QWidget::mapTo(const QWidget *parent, const QPoint &pos)",
what=what@entry=0x7ff967285e28 "parent must be in parent hierarchy",
file=file@entry=0x7ff967285c08
"/home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qwidget.cpp",
line=line@entry=4063) at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/global/qlogging.h:90
#11 0x00007ff966e8d155 in QWidget::mapTo (this=this@entry=0x55e2a8fe5650,
parent=0x55e2aa2565b0, pos=...) at
/home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qwidget.cpp:4069
#12 0x00007ff966e6bebe in QWidgetRepaintManager::flush
(this=this@entry=0x55e2ad2a6690, widget=widget@entry=0x55e2a8fe5650,
region=..., widgetTextures=0x0) at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/tools/qpoint.h:122


The reporter indicates this bug may be a duplicate of or related to bug 414556.

Possible duplicates by query: bug 415294, bug 414922, bug 414556, bug 413943,
bug 411017.

Reported using DrKonqi

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