Bug 388134

Application: systemsettings5 (5.11.4)

Qt Version: 5.9.1
Frameworks Version: 5.40.0
Operating System: Linux 4.13.0-22-generic x86_64
Distribution: Ubuntu 17.10

-- Information about the crash:
- What I was doing when the application crashed: I am using the new layout for system settings and when I type in the search box at the top left sometimes the program crashes.

The crash can be reproduced sometimes.

-- 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 0x7f24e67d2d80 (LWP 2443))]

Thread 7 (Thread 0x7f24a90ce700 (LWP 2504)):
#0  0x00007f24e243e901 in __GI___poll (fds=0x55bc82e39480, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f24dc2a5169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24dc2a5502 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24aa03cb26 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f24dc2cc645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f24de2337fc in start_thread (arg=0x7f24a90ce700) at pthread_create.c:465
#6  0x00007f24e244ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f24a98cf700 (LWP 2503)):
#0  0x00007f24e243e901 in __GI___poll (fds=0x55bc82a34b40, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f24dc2a5169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24dc2a527c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24dc2a52c1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24dc2cc645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f24de2337fc in start_thread (arg=0x7f24a98cf700) at pthread_create.c:465
#6  0x00007f24e244ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f24b42cc700 (LWP 2449)):
#0  0x00007f24e243e901 in __GI___poll (fds=0x7f24ac002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f24dc2a5169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24dc2a527c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24e2d8049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f24e2d25e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f24e2b453ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f24e0bf7f45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f24e2b4a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f24de2337fc in start_thread (arg=0x7f24b42cc700) at pthread_create.c:465
#9  0x00007f24e244ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f24bcdc2700 (LWP 2448)):
#0  0x00007f24e2439ffd in __GI___libc_read (fd=12, buf=0x7f24bcdc1a70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f24da7e4073 in  () at /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.90
#2  0x00007f24dc2e9280 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24dc2a4c4b in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24dc2a5110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f24dc2a527c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f24e2d8049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f24e2d25e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f24e2b453ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f24e0bf7f45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f24e2b4a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f24de2337fc in start_thread (arg=0x7f24bcdc2700) at pthread_create.c:465
#12 0x00007f24e244ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f24c8b71700 (LWP 2446)):
#0  0x00007f24e661bf7d in _dl_update_slotinfo (req_modid=<optimized out>) at ../elf/dl-tls.c:740
#1  0x00007f24e661bffc in update_get_addr (ti=0x7f24e31e16a0) at ../elf/dl-tls.c:808
#2  0x00007f24e6621f38 in __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:55
#3  0x00007f24e2b49126 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f24e2d8039a in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f24dc2a46a8 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f24dc2a509b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f24dc2a527c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f24e2d8049b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f24e2d25e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f24e2b453ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f24e31fce45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#12 0x00007f24e2b4a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f24de2337fc in start_thread (arg=0x7f24c8b71700) at pthread_create.c:465
#14 0x00007f24e244ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f24d2004700 (LWP 2445)):
#0  0x00007f24e243e901 in __GI___poll (fds=0x7f24d2003bb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f24deaad747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f24deaaf53a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f24d4b92f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f24e2b4a29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f24de2337fc in start_thread (arg=0x7f24d2004700) at pthread_create.c:465
#6  0x00007f24e244ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f24e67d2d80 (LWP 2443)):
[KCrash Handler]
#6  0x00007f24e415d152 in QGuiApplicationPrivate::sendQWindowEventToQPlatformWindow(QWindow*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#7  0x00007f24e4928d6b in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f24e2d27de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f24e10eb265 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f24e10f6f3a in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f24e10f72c5 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f24e492146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f24e4928d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f24e2d27de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f24e11085a8 in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f24e11088bf in QQuickWindow::keyReleaseEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f24e4171d35 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007f24e110fd05 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f24e492146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f24e4928d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f24e2d27de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f24e1770bec in QQuickWidget::keyReleaseEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#23 0x00007f24e4961dc8 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f24e492146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f24e492a272 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f24e2d27de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f24e497efa5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f24e492146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f24e4928d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f24e2d27de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f24e4162ab0 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#32 0x00007f24e4167a05 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#33 0x00007f24e413fcab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007f24d4bf55a0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#35 0x00007f24dc2a4fb7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f24dc2a51f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f24dc2a527c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f24e2d8047f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f24e2d25e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f24e2d2eda4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x000055bc805d9dcf in  ()
#42 0x00007f24e23571c1 in __libc_start_main (main=0x55bc805d99d0, argc=1, argv=0x7ffee0f263b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffee0f263a8) at ../csu/libc-start.c:308
#43 0x000055bc805d9e5a in _start ()

Reported using DrKonqi