Application: systemsettings5 (5.9.4)
 (Compiled from sources)
Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.10.0-28-generic x86_64
Distribution: Ubuntu 17.04

-- Information about the crash:
- What I was doing when the application crashed: Changing theme from deafult to Arc. I downloaded Arc from the theme shop, but when i try to apply the them, the window crashes. I am using Kubuntu 17.04.

- Custom settings of the application: The Arc theme

The crash can be reproduced every time.

-- 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 0x7fdeceb188c0 (LWP 2791))]

Thread 4 (Thread 0x7fdea5866700 (LWP 2795)):
#0  0x00007fdeca8a2d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fdec4a60576 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdec4a6068c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdecb1c5f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdecb16f88a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdecaf9cfe3 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdec92e7df5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdecafa1c98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdec6b916da in start_thread (arg=0x7fdea5866700) at pthread_create.c:456
#9  0x00007fdeca8aed7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7fdeb2ded700 (LWP 2793)):
#0  0x00007fdec4a5d5af in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdec4a5fec4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdec4a60514 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdec4a6068c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdecb1c5f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdecb16f88a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdecaf9cfe3 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdecbac95c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fdecafa1c98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdec6b916da in start_thread (arg=0x7fdeb2ded700) at pthread_create.c:456
#10 0x00007fdeca8aed7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7fdebb688700 (LWP 2792)):
#0  0x00007fdeca8a2d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fdec7408c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdec740a8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdebdbdfed9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fdecafa1c98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdec6b916da in start_thread (arg=0x7fdebb688700) at pthread_create.c:456
#6  0x00007fdeca8aed7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7fdeceb188c0 (LWP 2791)):
[KCrash Handler]
#6  0x00007fdece587a39 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#7  0x00007fdecb19d81e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdecc532805 in QGuiApplication::paletteChanged(QPalette const&) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007fdeba6324a5 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlasmaPlatformTheme.so
#10 0x00007fdeba63f315 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlasmaPlatformTheme.so
#11 0x00007fdecbad3650 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#12 0x00007fdecb19e359 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fdecccd035c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007fdecccd7b11 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fdecb1718a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fdecb17402d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fdecb1c5b03 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fdec4a60377 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fdec4a605e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fdec4a6068c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fdecb1c5f0f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fdecb16f88a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fdecb177ffc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x000056023f7cf32a in ?? ()
#25 0x00007fdeca7c63f1 in __libc_start_main (main=0x56023f7cef50, argc=1, argv=0x7ffde3918168, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffde3918158) at ../csu/libc-start.c:291
#26 0x000056023f7cf3aa in _start ()

Possible duplicates by query: bug 381082, bug 378817, bug 377947, bug 377312, bug 377156.

Reported using DrKonqi