Bug 422972

Application: khelpcenter (5.7.6.20042)

Qt Version: 5.15.0
Frameworks Version: 5.71.0
Operating System: Linux 5.6.15-arch1-1 x86_64
Windowing system: Wayland
Distribution: Arch Linux

-- Information about the crash:
- What I was doing when the application crashed:
I can't reproduce this crash consistently, it occurs sometimes.
open klipper settings
cliick on "Actions" section in the left side
click on "Help" button on bottom

The crash can be reproduced sometimes.

-- Backtrace:
Application: Help Center (khelpcenter), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f387e9eb022 in XChangeWindowAttributes () from /usr/lib/libX11.so.6
#5  0x00007f3880db1c42 in KHTMLView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libKF5KHtml.so.5
#6  0x00007f387fe19c6e in QWidget::event (this=this@entry=0x556696f0e5c0, event=event@entry=0x7ffe637b7aa0) at kernel/qwidget.cpp:9027
#7  0x00007f387fec4f8f in QFrame::event (this=0x556696f0e5c0, e=0x7ffe637b7aa0) at widgets/qframe.cpp:550
#8  0x00007f3880dadca0 in KHTMLView::eventFilter(QObject*, QEvent*) () from /usr/lib/libKF5KHtml.so.5
#9  0x00007f387f1e6403 in QCoreApplicationPrivate::sendThroughObjectEventFilters (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.cpp:1187
#10 QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x556697144a10, event=event@entry=0x7ffe637b7aa0) at kernel/qcoreapplication.cpp:1176
#11 0x00007f387fdd86e1 in QApplicationPrivate::notify_helper (this=this@entry=0x556696dfbbe0, receiver=receiver@entry=0x556697144a10, e=e@entry=0x7ffe637b7aa0) at kernel/qapplication.cpp:3665
#12 0x00007f387fddf967 in QApplication::notify (this=0x7ffe637b77a0, receiver=0x556697144a10, e=0x7ffe637b7aa0) at kernel/qapplication.cpp:3115
#13 0x00007f387f1e669a in QCoreApplication::notifyInternal2 (receiver=0x556697144a10, event=0x7ffe637b7aa0) at ../../include/QtCore/5.15.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#14 0x00007f387fdde84e in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x556697144a10, event=event@entry=0x7ffe637b7aa0, alienWidget=alienWidget@entry=0x556697144a10, nativeWidget=0x556696ea4ca0, buttonDown=buttonDown@entry=0x7f3880311350 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2603
#15 0x00007f387fe323a2 in QWidgetWindow::handleMouseEvent (this=0x5566974ac6b0, event=0x7ffe637b7d60) at /usr/include/c++/10.1.0/bits/atomic_base.h:420
#16 0x00007f387fe3577f in QWidgetWindow::event (this=0x5566974ac6b0, event=0x7ffe637b7d60) at kernel/qwidgetwindow.cpp:295
#17 0x00007f387fdd86f2 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5566974ac6b0, e=0x7ffe637b7d60) at kernel/qapplication.cpp:3671
#18 0x00007f387f1e669a in QCoreApplication::notifyInternal2 (receiver=0x5566974ac6b0, event=0x7ffe637b7d60) at ../../include/QtCore/5.15.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#19 0x00007f387f6dff1c in QGuiApplicationPrivate::processMouseEvent (e=0x556697841650) at kernel/qguiapplication.cpp:2214
#20 0x00007f387f6b56ec in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:1175
#21 0x00007f387a6e5081 in userEventSourceDispatch (source=<optimized out>) at qeventdispatcher_glib.cpp:74
#22 0x00007f387b7d143c in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#23 0x00007f387b81efa9 in ?? () from /usr/lib/libglib-2.0.so.0
#24 0x00007f387b7d0221 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#25 0x00007f387f23f211 in QEventDispatcherGlib::processEvents (this=0x556696e76d90, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#26 0x00007f387f1e501c in QEventLoop::exec (this=this@entry=0x7ffe637b8090, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#27 0x00007f387f1ed4a4 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#28 0x00007f387f6d338e in QGuiApplication::exec () at kernel/qguiapplication.cpp:1867
#29 0x00007f387fdd8666 in QApplication::exec () at kernel/qapplication.cpp:2811
#30 0x00007f3881582df7 in kdemain (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/khelpcenter-20.04.2/application.cpp:124
#31 0x00007f38813a1002 in __libc_start_main () from /usr/lib/libc.so.6
#32 0x000055669639605e in _start ()
[Inferior 1 (process 52331) detached]

Possible duplicates by query: bug 419798, bug 419685, bug 418660, bug 418351, bug 416769.

Reported using DrKonqi