Application: systemsettings5 (5.11.3)

Qt Version: 5.9.1
Frameworks Version: 5.39.0
Operating System: Linux 4.13.0-16-generic x86_64
Distribution: Ubuntu 17.10

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

Opened the system settings and typed "wallpaper" in the search field very quickly; however while typing (and simultaneously searching) the system settings crashed. Could reproduce it four times; however it does not always happen. Maby it's a race condition.

The crash can be reproduced every time.

-- Backtrace:
Application: Systemeinstellungen (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4a7982cd80 (LWP 21086))]

Thread 12 (Thread 0x7f4a1d3a4700 (LWP 21126)):
#0  0x00007f4a754b2901 in __GI___poll (fds=0x55691aa067a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4a6f3e8169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a6f3e8502 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a0b8f8b26 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f4a6f40f645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a712a77fc in start_thread (arg=0x7f4a1d3a4700) at pthread_create.c:465
#6  0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f4a177ff700 (LWP 21125)):
#0  0x00007f4a754b2901 in __GI___poll (fds=0x55691d0d4610, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4a6f3e8169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a6f3e82c1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a6f40f645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a712a77fc in start_thread (arg=0x7f4a177ff700) at pthread_create.c:465
#6  0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f4a24fb4700 (LWP 21113)):
#0  0x00007f4a75df0b40 in QTimerInfoList::repairTimersIfNeeded() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f4a75df0bd3 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f4a75df220e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f4a6f3e76a8 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a6f3e809b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f4a73c6bf45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f4a712a77fc in start_thread (arg=0x7f4a24fb4700) at pthread_create.c:465
#12 0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f4a2e1ef700 (LWP 21109)):
#0  0x00007f4a754cd96b in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:134
#1  0x00007f4a75df1db1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f4a75df05e9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f4a75df0bc5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a75df220e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a6f3e76a8 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f4a6f3e809b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f4a73c6bf45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f4a712a77fc in start_thread (arg=0x7f4a2e1ef700) at pthread_create.c:465
#14 0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f4a2ffff700 (LWP 21107)):
#0  0x00007f4a754adffd in __GI___libc_read (fd=22, buf=0x7f4a2fffea70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f4a6f42c280 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a6f3e7c4b in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a6f3e8110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a73c6bf45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f4a712a77fc in start_thread (arg=0x7f4a2ffff700) at pthread_create.c:465
#11 0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f4a36dcd700 (LWP 21100)):
#0  0x00007f4a754b2901 in __GI___poll (fds=0x7f4a300029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4a6f3e8169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a73c6bf45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a712a77fc in start_thread (arg=0x7f4a36dcd700) at pthread_create.c:465
#9  0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f4a3df76700 (LWP 21094)):
#0  0x00007f4a754b2901 in __GI___poll (fds=0x7f4a38002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4a6f3e8169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a73c6bf45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a712a77fc in start_thread (arg=0x7f4a3df76700) at pthread_create.c:465
#9  0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f4a4622a700 (LWP 21092)):
#0  0x00007f4a75bb3afc in QMutex::lock() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f4a75df28ab in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f4a6f3e7b71 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a6f3e8110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a73c6bf45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f4a712a77fc in start_thread (arg=0x7f4a4622a700) at pthread_create.c:465
#11 0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f4a4fac7700 (LWP 21091)):
#0  0x00007f4a6f3e76ba in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4a6f3e809b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a73c6bf45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a712a77fc in start_thread (arg=0x7f4a4fac7700) at pthread_create.c:465
#9  0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f4a5cb71700 (LWP 21089)):
#0  0x00007f4a754b2901 in __GI___poll (fds=0x7f4a580145a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4a6f3e8169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a75df249b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a75bb73ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a7626ee45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a712a77fc in start_thread (arg=0x7f4a5cb71700) at pthread_create.c:465
#9  0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f4a65bb9700 (LWP 21088)):
#0  0x00007f4a754bfbf0 in __libc_recvmsg (fd=3, msg=0x7f4a65bb8ac0, flags=0) at ../sysdeps/unix/sysv/linux/recvmsg.c:28
#1  0x00007f4a71b23a58 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4a71b21a08 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4a71b2353a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f4a68113f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#5  0x00007f4a75bbc29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a712a77fc in start_thread (arg=0x7f4a65bb9700) at pthread_create.c:465
#7  0x00007f4a754beb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f4a7982cd80 (LWP 21086)):
[KCrash Handler]
#6  0x00007f4a7415f134 in QQuickItem::isVisible() const () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f4a7415f249 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f4a7416af3a in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f4a7416b2c5 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f4a7799146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f4a77998d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f4a75d99de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f4a7417c5a8 in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f4a7417c8bf in QQuickWindow::keyReleaseEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f4a771e1d35 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#16 0x00007f4a74183d05 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f4a7799146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f4a77998d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f4a75d99de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f4a747e4bec in QQuickWidget::keyReleaseEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#21 0x00007f4a779d1dc8 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f4a7799146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f4a7799a272 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f4a75d99de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f4a779eefa5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f4a7799146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f4a77998d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f4a75d99de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f4a771d2ab0 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#30 0x00007f4a771d7a05 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#31 0x00007f4a771afcab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#32 0x00007f4a681765a0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#33 0x00007f4a6f3e7fb7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f4a6f3e81f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f4a6f3e827c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f4a75df247f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f4a75d97e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f4a75da0da4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x0000556913082dcf in  ()
#40 0x00007f4a753cb1c1 in __libc_start_main (main=0x5569130829d0, argc=1, argv=0x7fffd248c288, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd248c278) at ../csu/libc-start.c:308
#41 0x0000556913082e5a in _start ()

Reported using DrKonqi