[kmail2] [Bug 400838] New: Crash when closing message window with Qt 5.12

Thu Nov 8 08:21:02 GMT 2018

https://bugs.kde.org/show_bug.cgi?id=400838

            Bug ID: 400838
           Summary: Crash when closing message window with Qt 5.12
           Product: kmail2
           Version: 5.9.2
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: arojas at archlinux.org
  Target Milestone: ---

SUMMARY
With Qt 5.12, kmail crashes every time when closing a standalone message
window.

STEPS TO REPRODUCE
1. Double click a message to open it in a separate window
2. Close the window

OBSERVED RESULT
Crash

EXPECTED RESULT
Doesn't crash

SOFTWARE VERSIONS
KDE Plasma Version: 5.14.3
KDE Frameworks Version: 5.51
Qt Version: 5.12.0 beta 3

ADDITIONAL INFORMATION

Thread 1 (Thread 0x7f592be93b00 (LWP 30150)):
[KCrash Handler]
#6  0x00007f593c5db35d in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007f593c5d8ff6 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007f593c5e4edb in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007f593c5e5101 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007f593c5e4954 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#11 0x00007f593c3dcee5 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#12 0x00007f593c41c911 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#13 0x00007f593c41d3e1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#14 0x00007f593c42e730 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#15 0x00007f593c3e0ffb in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#16 0x00007f593c3db61b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#17 0x00007f593c700ba2 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#18 0x00007f593c700ea1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#19 0x00007f593ad84ebc in
QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() () from
/usr/lib/libQt5WebEngineCore.so.5
#20 0x00007f59414ac564 in ?? () from /usr/lib/libQt5WebEngineWidgets.so.5
#21 0x00007f59414ac5f9 in ?? () from /usr/lib/libQt5WebEngineWidgets.so.5
#22 0x00007f59414a8085 in QWebEnginePage::~QWebEnginePage() () from
/usr/lib/libQt5WebEngineWidgets.so.5
#23 0x00007f594517ab5a in MessageViewer::MailWebEnginePage::~MailWebEnginePage
(this=0x5650b05ddf20, __in_chrg=<optimized out>) at
/usr/src/debug/messagelib-18.08.2/messageviewer/src/viewer/webengine/mailwebenginepage.cpp:38
#24 0x00007f594632521b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#25 0x00007f5946cfe10f in QWidget::~QWidget() () from
/usr/lib/libQt5Widgets.so.5
#26 0x00007f59451791fa in MessageViewer::MailWebEngineView::~MailWebEngineView
(this=0x5650b064c8a0, __in_chrg=<optimized out>) at
/usr/src/debug/messagelib-18.08.2/messageviewer/src/viewer/webengine/mailwebengineview.cpp:121
#27 0x00007f5945121026 in MessageViewer::ViewerPrivate::~ViewerPrivate
(this=0x7f59140a2d10, __in_chrg=<optimized out>) at
/usr/src/debug/messagelib-18.08.2/messageviewer/src/viewer/viewer_p.cpp:298
#28 0x00007f5945121229 in MessageViewer::ViewerPrivate::~ViewerPrivate
(this=0x7f59140a2d10, __in_chrg=<optimized out>) at
/usr/src/debug/messagelib-18.08.2/messageviewer/src/viewer/viewer_p.cpp:293
#29 0x00007f594632521b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#30 0x00007f5946cfe10f in QWidget::~QWidget() () from
/usr/lib/libQt5Widgets.so.5
#31 0x00007f5945114b0a in MessageViewer::Viewer::~Viewer (this=0x5650b0589300,
__in_chrg=<optimized out>) at
/usr/src/debug/messagelib-18.08.2/messageviewer/src/viewer/viewer.cpp:84
#32 0x00007f594632521b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#33 0x00007f5946cfe10f in QWidget::~QWidget() () from
/usr/lib/libQt5Widgets.so.5
#34 0x00007f59474402aa in KMReaderWin::~KMReaderWin() () from
/usr/lib/libkmailprivate.so.5
#35 0x00007f594632521b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#36 0x00007f5946cfe10f in QWidget::~QWidget() () from
/usr/lib/libQt5Widgets.so.5
#37 0x00007f5945c27245 in KMainWindow::~KMainWindow() () from
/usr/lib/libKF5XmlGui.so.5
#38 0x00007f5947471aef in KMReaderMainWin::~KMReaderMainWin() () from
/usr/lib/libkmailprivate.so.5
#39 0x00007f5947471b5a in KMReaderMainWin::~KMReaderMainWin() () from
/usr/lib/libkmailprivate.so.5
#40 0x00007f5946327bd1 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#41 0x00007f5946d02e8c in QWidget::event(QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#42 0x00007f5946e0f3d5 in QMainWindow::event(QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#43 0x00007f5945c2976c in KMainWindow::event(QEvent*) () from
/usr/lib/libKF5XmlGui.so.5
#44 0x00007f5945c73f96 in KXmlGuiWindow::event(QEvent*) () from
/usr/lib/libKF5XmlGui.so.5
#45 0x00007f5946cc1e34 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#46 0x00007f5946cc9671 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#47 0x00007f59462fc969 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#48 0x00007f59462ffa08 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#49 0x00007f5946353014 in ?? () from /usr/lib/libQt5Core.so.5
#50 0x00007f5942aee3cf in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#51 0x00007f5942aeff89 in ?? () from /usr/lib/libglib-2.0.so.0
#52 0x00007f5942aeffce in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#53 0x00007f59463525e9 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#54 0x00007f59462fb5fc in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#55 0x00007f5946303906 in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#56 0x00005650aa678f60 in ?? ()
#57 0x00007f5945d53223 in __libc_start_main () from /usr/lib/libc.so.6
#58 0x00005650aa67911e in _start ()

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