Bug 361416

Application: krunner (5.6.90)

Qt Version: 5.5.1
Frameworks Version: 5.21.0
Operating System: Linux 4.2.0-35-generic x86_64
Distribution: KDE neon on 15.10

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

I was attempting to bring up krunner via Alt + Spacebar and Alt + F2. Both options removed focus from the current operation, but the krunner drop down did not appear. I attempted to run an application anyway, but nothing happened. Eventually the application crashed, and I generated this bug report.

- What build of Linux are you running?

4.2.0-35-generic
Installed KDE-Neon Over Kubuntu 15.10

The crash can be reproduced every time.

-- Backtrace:
Application: krunner (krunner), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcc24645800 (LWP 1672))]

Thread 3 (Thread 0x7fcc10510700 (LWP 1674)):
#0  0x00007fcc20e1b88d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcc20306bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fcc2030874f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fcc12659a49 in QXcbEventReader::run (this=0xee33e0) at qxcbconnection.cpp:1230
#4  0x00007fcc21511a6e in QThreadPrivate::start (arg=0xee33e0) at thread/qthread_unix.cpp:331
#5  0x00007fcc1f0856aa in start_thread (arg=0x7fcc10510700) at pthread_create.c:333
#6  0x00007fcc20e26e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fcc0ca82700 (LWP 1685)):
#0  0x00007fcc20e1b88d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcc1e2d31ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1e2d32fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc217494fb in QEventDispatcherGlib::processEvents (this=0x7fcc000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fcc216f050a in QEventLoop::exec (this=this@entry=0x7fcc0ca81da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fcc2150cac4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fcc235ae105 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fcc21511a6e in QThreadPrivate::start (arg=0x10a62f0) at thread/qthread_unix.cpp:331
#8  0x00007fcc1f0856aa in start_thread (arg=0x7fcc0ca82700) at pthread_create.c:333
#9  0x00007fcc20e26e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fcc24645800 (LWP 1672)):
[KCrash Handler]
#6  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:983
#8  QObject::d_func (this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:110
#9  QObject::setProperty (this=0x0, name=0x40bd05 "runner", value=...) at kernel/qobject.cpp:3821
#10 0x0000000000408b3e in View::query(QString const&) ()
#11 0x000000000040bc45 in AppAdaptor::qt_metacall(QMetaObject::Call, int, void**) ()
#12 0x00007fcc2476f963 in QDBusConnectionPrivate::deliverCall (this=this@entry=0xf22430, object=object@entry=0x11517d0, msg=..., metaTypes=..., slotIdx=8) at qdbusintegrator.cpp:978
#13 0x00007fcc2477360a in QDBusConnectionPrivate::activateCall (this=this@entry=0xf22430, object=0x11517d0, flags=flags@entry=273, msg=...) at qdbusintegrator.cpp:885
#14 0x00007fcc247740d3 in QDBusConnectionPrivate::activateObject (this=0xf22430, node=..., msg=..., pathStartPos=<optimized out>) at qdbusintegrator.cpp:1462
#15 0x00007fcc247752ce in QDBusActivateObjectEvent::placeMetaCall (this=0x2b37ae0) at qdbusintegrator.cpp:1580
#16 0x00007fcc217227a1 in QObject::event (this=this@entry=0x7fff2d07fbb0, e=<optimized out>) at kernel/qobject.cpp:1239
#17 0x00007fcc21a3e658 in QWindow::event (this=0x7fff2d07fbb0, ev=<optimized out>) at kernel/qwindow.cpp:2077
#18 0x00007fcc238a0ec1 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007fcc243a726b in PlasmaQuick::Dialog::event (this=0x7fff2d07fbb0, event=0x2b37ae0) at ../../../src/plasmaquick/dialog.cpp:1178
#20 0x000000000040acf5 in View::event(QEvent*) ()
#21 0x00007fcc222759dc in QApplicationPrivate::notify_helper (this=this@entry=0xecbde0, receiver=receiver@entry=0x7fff2d07fbb0, e=e@entry=0x2b37ae0) at kernel/qapplication.cpp:3716
#22 0x00007fcc2227aea6 in QApplication::notify (this=0x7fff2d07fb40, receiver=0x7fff2d07fbb0, e=0x2b37ae0) at kernel/qapplication.cpp:3499
#23 0x00007fcc216f2d7b in QCoreApplication::notifyInternal (this=0x7fff2d07fb40, receiver=0x7fff2d07fbb0, event=event@entry=0x2b37ae0) at kernel/qcoreapplication.cpp:965
#24 0x00007fcc216f5176 in QCoreApplication::sendEvent (event=0x2b37ae0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xeca720) at kernel/qcoreapplication.cpp:1593
#26 0x00007fcc216f5658 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#27 0x00007fcc217490d3 in postEventSourceDispatch (s=0xf079d0) at kernel/qeventdispatcher_glib.cpp:271
#28 0x00007fcc1e2d2ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fcc1e2d3250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fcc1e2d32fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fcc217494df in QEventDispatcherGlib::processEvents (this=0xf02fa0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#32 0x00007fcc216f050a in QEventLoop::exec (this=this@entry=0x7fff2d07fa70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#33 0x00007fcc216f85dc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#34 0x0000000000408207 in main ()

Reported using DrKonqi