Bug 439853

Application: kalarm (3.1.2 (KDE Apps 20.12.2))

Qt Version: 5.15.2
Frameworks Version: 5.83.0
Operating System: Linux 5.12.14-300.fc34.x86_64 x86_64
Windowing System: Wayland
Drkonqi Version: 5.22.3
Distribution: "Fedora release 34 (Thirty Four)"

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

upon KDE start kAlarm crashes

same every time I try launching it manually

The crash can be reproduced every time.

-- Backtrace:
Application: KAlarm (kalarm), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f0566a579fb in xcb_send_request_with_fds64 () from /lib64/libxcb.so.1
#5  0x00007f0566a581dd in xcb_send_request () from /lib64/libxcb.so.1
#6  0x00007f0566a598a8 in xcb_intern_atom () from /lib64/libxcb.so.1
#7  0x00007f0569643c20 in Atoms::init() () from /lib64/libKF5WindowSystem.so.5
#8  0x00007f0569643e01 in atomsForConnection(xcb_connection_t*) () from /lib64/libKF5WindowSystem.so.5
#9  0x00007f056964ac35 in NETRootInfo::NETRootInfo(xcb_connection_t*, QFlags<NET::Property>, QFlags<NET::Property2>, int, bool) () from /lib64/libKF5WindowSystem.so.5
#10 0x000055fc104d64af in (anonymous namespace)::findFullScreenWindows (screenTypes=..., screenRects=...) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/messagewindow.cpp:1389
#11 MessageWindow::getWorkAreaAndModal (this=0x55fc1132cea0) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/messagewindow.cpp:1279
#12 0x000055fc104c64fb in MessageWindow::MessageWindow (flags=0, alarm=..., event=..., this=0x55fc1132cea0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/messagewindow.cpp:126
#13 MessageDisplay::create (event=..., alarm=..., flags=0) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/messagedisplay.cpp:37
#14 0x000055fc104acd90 in KAlarmApp::execAlarm (this=<optimized out>, event=..., alarm=..., flags=...) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/kalarmapp.cpp:2285
#15 0x000055fc104a6bb8 in KAlarmApp::handleEvent (findUniqueId=<optimized out>, action=KAlarmApp::QueuedAction::Handle, id=..., this=0x55fc10fe10c0) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/kalarmapp.cpp:1971
#16 KAlarmApp::processQueue (this=0x55fc10fe10c0) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/kalarmapp.cpp:1083
#17 0x00007f0567ecd809 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#18 0x00007f0568abe423 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#19 0x00007f0567ea3098 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#20 0x00007f0567ea6606 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#21 0x00007f0567ef4bf7 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#22 0x00007f0565bb84cf in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#23 0x00007f0565c0c4e8 in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#24 0x00007f0565bb5c03 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#25 0x00007f0567ef4698 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#26 0x00007f0567ea1ab2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#27 0x00007f0567ea9fe4 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#28 0x000055fc10410bc5 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kalarm-20.12.2-1.fc34.x86_64/src/main.cpp:70
[Inferior 1 (process 4789) detached]

Possible duplicates by query: bug 348572, bug 269759, bug 257262, bug 214384, bug 189352.

Reported using DrKonqi