Application: ksmserver-logout-greeter (ksmserver-logout-greeter), signal: Aborted Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7fa95ecdf000 (LWP 14389))] Thread 4 (Thread 0x7fa933066700 (LWP 14394)): #0 0x00007fa95a5cc901 in __GI___poll (fds=0x7fa92c004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fa953407169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fa95340727c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fa95af0c49b in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fa95aeb1e3a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fa95acd13ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fa95cf2cf45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007fa95acd629d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fa9551867fc in start_thread (arg=0x7fa933066700) at pthread_create.c:465 #9 0x00007fa95a5d8b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7fa944b2d700 (LWP 14392)): #0 0x00007fa95accdb6f in QMutex::unlock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007fa95af0c3cf in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007fa9534066a8 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fa95340709b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007fa95340727c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007fa95af0c49b in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fa95aeb1e3a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007fa95acd13ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fa95cf2cf45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #9 0x00007fa95acd629d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007fa9551867fc in start_thread (arg=0x7fa944b2d700) at pthread_create.c:465 #11 0x00007fa95a5d8b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7fa94532e700 (LWP 14391)): #0 __GI___pthread_getspecific (key=5) at pthread_getspecific.c:30 #1 0x00007fa95342eb30 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fa95340726d in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fa95af0c49b in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fa95aeb1e3a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fa95acd13ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fa95baefe45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #7 0x00007fa95acd629d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fa9551867fc in start_thread (arg=0x7fa94532e700) at pthread_create.c:465 #9 0x00007fa95a5d8b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7fa95ecdf000 (LWP 14389)): [KCrash Handler] #6 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #7 0x00007fa95a4fcf5d in __GI_abort () at abort.c:90 #8 0x00007fa95acc1107 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007fa95d5f9787 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x00007fa95d5fa755 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #11 0x00007fa95d5fb37a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #12 0x00007fa95b47ed35 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #13 0x00007fa95d66ed05 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #14 0x0000560996931fd1 in KSMShutdownDlg::event (this=0x560997c86520, e=0x7ffd90e1e0d0) at ./ksmserver/shutdowndlg.cpp:240 #15 0x00007fa95c0bc46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #16 0x00007fa95c0c3d34 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007fa95aeb3de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #18 0x00007fa95b473e5f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #19 0x00007fa95b474a9d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #20 0x00007fa95b44ccab in QWindowSystemInterface::sendWindowSystemEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #21 0x00007fa94943a5a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #22 0x00007fa953406fb7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #23 0x00007fa9534071f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #24 0x00007fa95340727c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #25 0x00007fa95af0c47f in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #26 0x00007fa95aeb1e3a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #27 0x00007fa95aebada4 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #28 0x000056099692f122 in main (argc=, argv=) at ./ksmserver/logout-greeter/main.cpp:221