Application: systemsettings5 (5.4.3)

Qt Version: 5.5.1
Operating System: Linux 4.2.6-200.fc22.x86_64+debug x86_64
Distribution (Platform): Fedora RPMs

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

I had been making changes to my system in the notifications area.
- Unusual behavior I noticed:
no unusually behavior

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7ff1302c5840 (LWP 23064))]

Thread 2 (Thread 0x7ff11462c700 (LWP 23078)):
#0  0x00007ff12a5282fd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff127475182 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7ff11462bc80) at /usr/include/bits/poll2.h:46
#2  0x00007ff127475182 in _xcb_conn_wait (c=c@entry=0x182cb40, cond=cond@entry=0x182cb80, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007ff127476c77 in xcb_wait_for_event (c=0x182cb40) at xcb_in.c:648
#4  0x00007ff11765ada9 in QXcbEventReader::run() (this=0x1836f70) at qxcbconnection.cpp:1254
#5  0x00007ff12b1353ce in QThreadPrivate::start(void*) (arg=0x1836f70) at thread/qthread_unix.cpp:331
#6  0x00007ff126c31555 in start_thread (arg=0x7ff11462c700) at pthread_create.c:333
#7  0x00007ff12a533b9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff1302c5840 (LWP 23064)):
[KCrash Handler]
#5  0x00000000000000e0 in  ()
#6  0x00007ff12b3494f9 in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) (sender=0x1f575c0, signal=0x2036909 "destroyed()", receiver=0x204a000, method=0x2036e19 "slotManagedTopLevelWidgetDestroyed()") at kernel/qobject.cpp:2932
#7  0x00007ff10793b289 in KParts::PartManager::~PartManager() () at /usr/lib64/libKF5Parts.so.5
#8  0x00007ff10793b549 in KParts::PartManager::~PartManager() () at /usr/lib64/libKF5Parts.so.5
#9  0x00007ff12b34385b in QObjectPrivate::deleteChildren() (this=this@entry=0x1fb77a0) at kernel/qobject.cpp:1946
#10 0x00007ff12b34d0c0 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1024
#11 0x00007ff10809275b in KHTMLPart::~KHTMLPart() () at /usr/lib64/libKF5KHtml.so.5
#12 0x00007ff108092879 in KHTMLPart::~KHTMLPart() () at /usr/lib64/libKF5KHtml.so.5
#13 0x00007ff12b3461d0 in QObject::event(QEvent*) (this=0x1fb7710, e=<optimized out>) at kernel/qobject.cpp:1230
#14 0x00007ff12d0a741c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x181c570, receiver=receiver@entry=0x1fb7710, e=e@entry=0x1ff9d60) at kernel/qapplication.cpp:3716
#15 0x00007ff12d0ac8e6 in QApplication::notify(QObject*, QEvent*) (this=0x7ffdff56e7e0, receiver=0x1fb7710, e=0x1ff9d60) at kernel/qapplication.cpp:3499
#16 0x00007ff12b31677b in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffdff56e7e0, receiver=0x1fb7710, event=event@entry=0x1ff9d60) at kernel/qcoreapplication.cpp:965
#17 0x00007ff12b318b76 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x1ff9d60, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#18 0x00007ff12b318b76 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x181bb80) at kernel/qcoreapplication.cpp:1593
#19 0x00007ff12b319058 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#20 0x00007ff12b36cae3 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x18727f0) at kernel/qeventdispatcher_glib.cpp:271
#21 0x00007ff125e7aa8a in g_main_context_dispatch (context=0x7ff10c0016f0) at gmain.c:3122
#22 0x00007ff125e7aa8a in g_main_context_dispatch (context=context@entry=0x7ff10c0016f0) at gmain.c:3737
#23 0x00007ff125e7ae20 in g_main_context_iterate (context=context@entry=0x7ff10c0016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3808
#24 0x00007ff125e7aecc in g_main_context_iteration (context=0x7ff10c0016f0, may_block=may_block@entry=1) at gmain.c:3869
#25 0x00007ff12b36ceef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x186b0d0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#26 0x00007ff12b313f0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffdff56e6c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#27 0x00007ff12b31bfec in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1229
#28 0x000000000040eb1b in main ()

Reported using DrKonqi