Bug 356046

Application: systemsettings5 (5.4.1)
 (Compiled from sources)
Qt Version: 5.5.0
Operating System: Linux 4.1.12-1-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Enable desktop effects: Maximizing. The window "System" is closed and KWin is revived

The crash can be reproduced sometimes.

-- Backtrace:
Application: Configuration du système (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff9f6078780 (LWP 2253))]

Thread 6 (Thread 0x7ff9e20db700 (LWP 2254)):
#0  0x00007ff9f1dfcc1d in poll () at /lib64/libc.so.6
#1  0x00007ff9eebe1422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007ff9eebe300f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007ff9e4a61c29 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007ff9f24f355f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff9ee36c0a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff9f1e0504d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7ff9d1a9e700 (LWP 2256)):
#0  0x00007ff9f1dfcc1d in poll () at /lib64/libc.so.6
#1  0x00007ff9ede4fe64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff9ede4ff7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff9f2724a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007ff9f26cba63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff9f24ee84a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007ff9f0a7f5f8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007ff9f24f355f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007ff9ee36c0a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff9f1e0504d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7ff9ca075700 (LWP 2258)):
#0  0x00007ff9f1df8ced in read () at /lib64/libc.so.6
#1  0x00007ff9e9e11f45 in  () at /usr/lib64/tls/libnvidia-tls.so.340.93
#2  0x00007ff9ede90b60 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff9ede4f999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff9ede4fdf8 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007ff9ede4ff7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#6  0x00007ff9f2724a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007ff9f26cba63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#8  0x00007ff9f24ee84a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#9  0x00007ff9f0a7f5f8 in  () at /usr/lib64/libQt5Qml.so.5
#10 0x00007ff9f24f355f in  () at /usr/lib64/libQt5Core.so.5
#11 0x00007ff9ee36c0a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007ff9f1e0504d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7ff9c2caa700 (LWP 2259)):
#0  0x00007ff9ee37005f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff9f24f457b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff9f0f499cb in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff9f0f49e63 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff9f24f355f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff9ee36c0a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff9f1e0504d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7ff9b9c04700 (LWP 2303)):
#0  0x00007ff9f1dfcc1d in poll () at /lib64/libc.so.6
#1  0x00007ff9db9577d1 in  () at /usr/lib64/libpulse.so.0
#2  0x00007ff9db948f0c in pa_mainloop_poll () at /usr/lib64/libpulse.so.0
#3  0x00007ff9db94957e in pa_mainloop_iterate () at /usr/lib64/libpulse.so.0
#4  0x00007ff9db949630 in pa_mainloop_run () at /usr/lib64/libpulse.so.0
#5  0x00007ff9db957783 in  () at /usr/lib64/libpulse.so.0
#6  0x00007ff9db4f8f98 in  () at /usr/lib64/pulseaudio/libpulsecommon-7.0.so
#7  0x00007ff9ee36c0a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007ff9f1e0504d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7ff9f6078780 (LWP 2253)):
[KCrash Handler]
#6  0x00007ff9aaf8d22e in  () at /usr/lib64/libkdecore.so.5
#7  0x00007ff9f5ebb92a in call_init.part () at /lib64/ld-linux-x86-64.so.2
#8  0x00007ff9f5ebba13 in _dl_init_internal () at /lib64/ld-linux-x86-64.so.2
#9  0x00007ff9f5ebfb48 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#10 0x00007ff9f5ebb7e4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#11 0x00007ff9f5ebf33b in _dl_open () at /lib64/ld-linux-x86-64.so.2
#12 0x00007ff9ec3b402b in dlopen_doit () at /lib64/libdl.so.2
#13 0x00007ff9f5ebb7e4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#14 0x00007ff9ec3b45dd in _dlerror_run () at /lib64/libdl.so.2
#15 0x00007ff9ec3b40c1 in dlopen@@GLIBC_2.2.5 () at /lib64/libdl.so.2
#16 0x00007ff9ab5c1f25 in libmodman::module_manager::load_file(std::string, bool) () at /usr/lib64/libmodman.so.1
#17 0x00007ff9ab5c22b3 in libmodman::module_manager::load_dir(std::string, bool) () at /usr/lib64/libmodman.so.1
#18 0x00007ff9ab7d2e06 in  () at /usr/lib64/libproxy.so.1
#19 0x00007ff9ab7d39bb in px_proxy_factory_new () at /usr/lib64/libproxy.so.1
#20 0x00007ff9ab9e96f9 in  () at /usr/lib64/gio/modules/libgiolibproxy.so
#21 0x00007ff9ee1440eb in g_type_create_instance () at /usr/lib64/libgobject-2.0.so.0
#22 0x00007ff9ee12905d in  () at /usr/lib64/libgobject-2.0.so.0
#23 0x00007ff9ee12ab6d in g_object_newv () at /usr/lib64/libgobject-2.0.so.0
#24 0x00007ff9ee12b31c in g_object_new () at /usr/lib64/libgobject-2.0.so.0
#25 0x00007ff9b89e7071 in  () at /usr/lib64/libgio-2.0.so.0
#26 0x00007ff9b89e71f0 in  () at /usr/lib64/libgio-2.0.so.0
#27 0x00007ff9b8d6bffd in  () at /usr/lib64/libsoup-2.4.so.1
#28 0x00007ff9ee129092 in  () at /usr/lib64/libgobject-2.0.so.0
#29 0x00007ff9ee12ab6d in g_object_newv () at /usr/lib64/libgobject-2.0.so.0
#30 0x00007ff9ee12b31c in g_object_new () at /usr/lib64/libgobject-2.0.so.0
#31 0x00007ff9b8d75a7c in soup_session_add_feature_by_type () at /usr/lib64/libsoup-2.4.so.1
#32 0x00007ff9b8d7653b in  () at /usr/lib64/libsoup-2.4.so.1
#33 0x00007ff9ee129878 in  () at /usr/lib64/libgobject-2.0.so.0
#34 0x00007ff9ee12af24 in g_object_new_valist () at /usr/lib64/libgobject-2.0.so.0
#35 0x00007ff9b8d7913b in soup_session_async_new_with_options () at /usr/lib64/libsoup-2.4.so.1
#36 0x00007ff9b8fe17a1 in  () at /usr/lib64/gstreamer-1.0/libgstsouphttpsrc.so
#37 0x00007ff9c04a3dce in  () at /usr/lib64/libgstbase-1.0.so.0
#38 0x00007ff9c04a41a0 in  () at /usr/lib64/libgstbase-1.0.so.0
#39 0x00007ff9c01c656f in gst_pad_activate_mode () at /usr/lib64/libgstreamer-1.0.so.0
#40 0x00007ff9c01c6b7b in gst_pad_set_active () at /usr/lib64/libgstreamer-1.0.so.0
#41 0x00007ff9c01a9d8d in  () at /usr/lib64/libgstreamer-1.0.so.0
#42 0x00007ff9c01b94dc in gst_iterator_fold () at /usr/lib64/libgstreamer-1.0.so.0
#43 0x00007ff9c01aa13a in  () at /usr/lib64/libgstreamer-1.0.so.0
#44 0x00007ff9c01abca0 in  () at /usr/lib64/libgstreamer-1.0.so.0
#45 0x00007ff9c01abffa in  () at /usr/lib64/libgstreamer-1.0.so.0
#46 0x00007ff9c04a2206 in  () at /usr/lib64/libgstbase-1.0.so.0
#47 0x00007ff9c01adb72 in gst_element_change_state () at /usr/lib64/libgstreamer-1.0.so.0
#48 0x00007ff9c01add6a in gst_element_change_state () at /usr/lib64/libgstreamer-1.0.so.0
#49 0x00007ff9c01ae24c in  () at /usr/lib64/libgstreamer-1.0.so.0
#50 0x00007ff9ba8c4940 in  () at /usr/lib64/gstreamer-1.0/libgstplayback.so
#51 0x00007ff9c01adb72 in gst_element_change_state () at /usr/lib64/libgstreamer-1.0.so.0
#52 0x00007ff9c01add6a in gst_element_change_state () at /usr/lib64/libgstreamer-1.0.so.0
#53 0x00007ff9c01ae24c in  () at /usr/lib64/libgstreamer-1.0.so.0
#54 0x00007ff9ba8ce9df in  () at /usr/lib64/gstreamer-1.0/libgstplayback.so
#55 0x00007ff9ba8cf798 in  () at /usr/lib64/gstreamer-1.0/libgstplayback.so
#56 0x00007ff9c01adb72 in gst_element_change_state () at /usr/lib64/libgstreamer-1.0.so.0
#57 0x00007ff9c01add6a in gst_element_change_state () at /usr/lib64/libgstreamer-1.0.so.0
#58 0x00007ff9c01ae24c in  () at /usr/lib64/libgstreamer-1.0.so.0
#59 0x00007ff9c0912a62 in  () at /usr/lib64/qt5/plugins/mediaservice/libgstmediaplayer.so
#60 0x00007ff9c091111d in  () at /usr/lib64/qt5/plugins/mediaservice/libgstmediaplayer.so
#61 0x00007ff9c0bacb00 in  () at /usr/lib64/libQt5Multimedia.so.5
#62 0x00007ff9c0bae966 in QMediaPlayer::setMedia(QMediaContent const&, QIODevice*) () at /usr/lib64/libQt5Multimedia.so.5
#63 0x00007ff9c1042775 in  () at /usr/lib64/qt5/qml/QtMultimedia/libdeclarative_multimedia.so
#64 0x00007ff9c1043434 in  () at /usr/lib64/qt5/qml/QtMultimedia/libdeclarative_multimedia.so
#65 0x00007ff9c1043c6b in  () at /usr/lib64/qt5/qml/QtMultimedia/libdeclarative_multimedia.so
#66 0x00007ff9f0a3f749 in  () at /usr/lib64/libQt5Qml.so.5
#67 0x00007ff9f09c3222 in  () at /usr/lib64/libQt5Qml.so.5
#68 0x00007ff9f09c3a63 in  () at /usr/lib64/libQt5Qml.so.5
#69 0x00007ff9f09c453f in QV4::QObjectMethod::callInternal(QV4::CallData*) () at /usr/lib64/libQt5Qml.so.5
#70 0x00007ff9f09d8e35 in QV4::Runtime::callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /usr/lib64/libQt5Qml.so.5
#71 0x00007ff9c2d6fcec in  ()
#72 0x000000000348a620 in  ()
#73 0x0000000002de7e90 in  ()
#74 0x0003000000000002 in  ()
#75 0x00007ff9f0f6bd7b in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Quick.so.5
#76 0x00007ff9f0979002 in  () at /usr/lib64/libQt5Qml.so.5
#77 0x00007ff9f09d8e35 in QV4::Runtime::callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /usr/lib64/libQt5Qml.so.5
#78 0x00007ff9d2a47b09 in  ()
#79 0x0000000003754d80 in  ()
#80 0x0000000002de7e90 in  ()
#81 0x0003000000000000 in  ()
#82 0x0001000000000001 in  ()
#83 0x00007ff9c4162690 in  ()
#84 0x00007ff9c2fc33e0 in  ()
#85 0x0000000000000000 in  ()

Reported using DrKonqi