Application: systemsettings5 (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-21-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
Attempted to view driver information in KDE System Settings; after several minutes of app inactivity, manually closed app.  App-crash dialog immediately appeared

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdcec3268c0 (LWP 15993))]

Thread 4 (Thread 0x7fdcdab6b700 (LWP 15994)):
#0  0x00007fdce8a61e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fdce6749c62 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdce674b8d7 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdcdcebd629 in QXcbEventReader::run() (this=0x160b260) at qxcbconnection.cpp:1253
#4  0x00007fdce915784e in QThreadPrivate::start(void*) (arg=0x160b260) at thread/qthread_unix.cpp:331
#5  0x00007fdce5ed36fa in start_thread (arg=0x7fdcdab6b700) at pthread_create.c:333
#6  0x00007fdce8a6db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fdcc1da8700 (LWP 16012)):
#0  0x00007fdce8a5d9cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fdce59f56c0 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7fdcc1da7c40, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  0x00007fdce59f56c0 in g_wakeup_acknowledge (wakeup=0x1f72450) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gwakeup.c:210
#3  0x00007fdce59b1e04 in g_main_context_check (context=context@entry=0x1f6f000, max_priority=2147483647, fds=fds@entry=0x7fdcbc0008c0, n_fds=n_fds@entry=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3632
#4  0x00007fdce59b22c0 in g_main_context_iterate (context=context@entry=0x1f6f000, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3837
#5  0x00007fdce59b242c in g_main_context_iteration (context=0x1f6f000, may_block=may_block@entry=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#6  0x00007fdce59b2469 in glib_worker_main (data=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:5672
#7  0x00007fdce59d8b45 in g_thread_proxy (data=0x3017800) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread.c:780
#8  0x00007fdce5ed36fa in start_thread (arg=0x7fdcc1da8700) at pthread_create.c:333
#9  0x00007fdce8a6db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fdcc15a7700 (LWP 16013)):
#0  0x00007fdce8a61e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fdce59b231c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fdcb40010c0, timeout=<optimized out>, context=0x1f6f810) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:4135
#2  0x00007fdce59b231c in g_main_context_iterate (context=0x1f6f810, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007fdce59b26a2 in g_main_loop_run (loop=0x1f6f7c0) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:4034
#4  0x00007fdcd83be906 in gdbus_shared_thread_func (user_data=0x1f6f7e0) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./gio/gdbusprivate.c:246
#5  0x00007fdce59d8b45 in g_thread_proxy (data=0x3017850) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread.c:780
#6  0x00007fdce5ed36fa in start_thread (arg=0x7fdcc15a7700) at pthread_create.c:333
#7  0x00007fdce8a6db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fdcec3268c0 (LWP 15993)):
[KCrash Handler]
#6  0x0000000000000026 in  ()
#7  0x00007fdce936b1e9 in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) (sender=0x1a28e30, signal=0x1c0b679 "destroyed()", receiver=0x1c0a460, method=0x1c07c39 "slotManagedTopLevelWidgetDestroyed()") at kernel/qobject.cpp:2932
#8  0x00007fdcc9d711b3 in KParts::PartManager::~PartManager() () at /usr/lib/x86_64-linux-gnu/libKF5Parts.so.5
#9  0x00007fdcc9d71369 in KParts::PartManager::~PartManager() () at /usr/lib/x86_64-linux-gnu/libKF5Parts.so.5
#10 0x00007fdce936552b in QObjectPrivate::deleteChildren() (this=this@entry=0x1646550) at kernel/qobject.cpp:1946
#11 0x00007fdce936eda0 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1024
#12 0x00007fdcca4b431b in KHTMLPart::~KHTMLPart() () at /usr/lib/x86_64-linux-gnu/libKF5KHtml.so.5
#13 0x00007fdcca4b4439 in KHTMLPart::~KHTMLPart() () at /usr/lib/x86_64-linux-gnu/libKF5KHtml.so.5
#14 0x00007fdce9367ec0 in QObject::event(QEvent*) (this=0x17d13e0, e=<optimized out>) at kernel/qobject.cpp:1230
#15 0x00007fdcea80b05c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x15f25f0, receiver=receiver@entry=0x17d13e0, e=e@entry=0x1be7780) at kernel/qapplication.cpp:3716
#16 0x00007fdcea810516 in QApplication::notify(QObject*, QEvent*) (this=0x7ffeed3212e0, receiver=0x17d13e0, e=0x1be7780) at kernel/qapplication.cpp:3499
#17 0x00007fdce933862b in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffeed3212e0, receiver=0x17d13e0, event=event@entry=0x1be7780) at kernel/qcoreapplication.cpp:965
#18 0x00007fdce933aa26 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x1be7780, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#19 0x00007fdce933aa26 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x15f1c70) at kernel/qcoreapplication.cpp:1593
#20 0x00007fdce933af08 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#21 0x00007fdce938e673 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x16cea20) at kernel/qeventdispatcher_glib.cpp:271
#22 0x00007fdce59b2127 in g_main_context_dispatch (context=0x7fdcd40016f0) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3154
#23 0x00007fdce59b2127 in g_main_context_dispatch (context=context@entry=0x7fdcd40016f0) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3769
#24 0x00007fdce59b2380 in g_main_context_iterate (context=context@entry=0x7fdcd40016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3840
#25 0x00007fdce59b242c in g_main_context_iteration (context=0x7fdcd40016f0, may_block=may_block@entry=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#26 0x00007fdce938ea7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x16ce950, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#27 0x00007fdce9335dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffeed3211c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#28 0x00007fdce933de8c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1229
#29 0x000000000040f7a1 in main ()

Reported using DrKonqi