Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 4.0.0-040000-generic x86_64
Distribution: Ubuntu 15.04

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

Opening the system settings and going on style applications; opening window decoration or daemon crashes or hangs the pc, and I have to reboot the system

The crash can be reproduced every time.

-- Backtrace:
Application: Impostazioni di sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0bc3158780 (LWP 1830))]

Thread 4 (Thread 0x7f0bb28d5700 (LWP 1831)):
#0  0x00007f0bbf8c28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f0bbdbdcb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f0bbdbde64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f0bb4e20099 in QXcbEventReader::run (this=0x1eaab00) at qxcbconnection.cpp:1105
#4  0x00007f0bbff43b0e in QThreadPrivate::start (arg=0x1eaab00) at thread/qthread_unix.cpp:337
#5  0x00007f0bbcaf66aa in start_thread (arg=0x7f0bb28d5700) at pthread_create.c:333
#6  0x00007f0bbf8cdeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f0b9fe85700 (LWP 1832)):
#0  0x00007f0bbf8c28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f0bbc5d7ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0bbc5d7fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0bc01dac6c in QEventDispatcherGlib::processEvents (this=0x7f0b980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f0bc017f3e2 in QEventLoop::exec (this=this@entry=0x7f0b9fe84e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f0bbff3eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f0bbef09f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f0bbff43b0e in QThreadPrivate::start (arg=0x22fd670) at thread/qthread_unix.cpp:337
#8  0x00007f0bbcaf66aa in start_thread (arg=0x7f0b9fe85700) at pthread_create.c:333
#9  0x00007f0bbf8cdeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f0b9c97c700 (LWP 1833)):
#0  0x00007f0bbf8be49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f0bbc61b2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0bbc5d796c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0bbc5d7e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0bbc5d7fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0bc01dac6c in QEventDispatcherGlib::processEvents (this=0x7f0b900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f0bc017f3e2 in QEventLoop::exec (this=this@entry=0x7f0b9c97be20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f0bbff3eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f0bbef09f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f0bbff43b0e in QThreadPrivate::start (arg=0x26a59a0) at thread/qthread_unix.cpp:337
#10 0x00007f0bbcaf66aa in start_thread (arg=0x7f0b9c97c700) at pthread_create.c:333
#11 0x00007f0bbf8cdeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f0bc3158780 (LWP 1830)):
[KCrash Handler]
#6  0x0000000000000050 in ?? ()
#7  0x00007f0ba031f6e1 in KDecoration2::Decoration::update(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8  0x00007f0ba031f75b in KDecoration2::Decoration::update() () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#9  0x00007f0b9cc7d370 in Breeze::Decoration::setOpacity (this=this@entry=0x2639f20, value=<optimized out>) at ../../kdecoration/breezedecoration.cpp:92
#10 0x00007f0b9cc9d7a8 in Breeze::Decoration::qt_metacall (this=0x2639f20, _c=QMetaObject::WriteProperty, _id=0, _a=0x7ffd26055cb0) at moc_breezedecoration.cpp:146
#11 0x00007f0bbff245ca in updateProperty (newValue=..., this=0x263ab60) at animation/qpropertyanimation.cpp:135
#12 QPropertyAnimation::updateCurrentValue (this=<optimized out>, value=...) at animation/qpropertyanimation.cpp:242
#13 0x00007f0bbff1ff48 in QVariantAnimationPrivate::setCurrentValueForProgress (this=this@entry=0x263ab60, progress=progress@entry=0.99564444444444444) at animation/qvariantanimation.cpp:290
#14 0x00007f0bbff20d1b in recalculateCurrentInterval (force=false, this=0x263ab60) at animation/qvariantanimation.cpp:275
#15 QVariantAnimation::updateCurrentTime (this=<optimized out>) at animation/qvariantanimation.cpp:693
#16 0x00007f0bbff1cbaf in QAbstractAnimation::setCurrentTime (this=0x2652210, msecs=143) at animation/qabstractanimation.cpp:1321
#17 0x00007f0bbff1ce96 in updateAnimationsTime (delta=7, this=0x1ff5d20) at animation/qabstractanimation.cpp:606
#18 QUnifiedTimer::updateAnimationTimers (this=0x211ecb0) at animation/qabstractanimation.cpp:323
#19 0x00007f0bbef44a5e in QAbstractAnimationJob::setState(QAbstractAnimationJob::State) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007f0bbea61dac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f0bbeabc244 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f0bbea6aea3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f0bbe9c8dd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007f0bbe9cd1ae in QQuickItem::setWidth(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007f0bbe9d9be6 in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f0bbee83ba7 in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::ValueRef, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f0bbeef851c in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007f0bbeef8c7e in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#29 0x00007f0bbeed2497 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#30 0x00007f0bbeed245e in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#31 0x00007f0bbee6f10c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#32 0x00007f0bc01b2141 in QMetaObject::activate (sender=0x24c6db0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3603
#33 0x00007f0bbe9c8e39 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#34 0x00007f0bbea60edc in QQuickFlickable::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007f0bbe9cdc60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#36 0x00007f0bbe9c3a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#37 0x00007f0bbe9c59a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#38 0x00007f0bbe9c8dd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#39 0x00007f0bbe9cdc60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#40 0x00007f0bbe9c3a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#41 0x00007f0bbe9c59a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#42 0x00007f0bbe9c8dd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#43 0x00007f0bbe9cdc60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#44 0x00007f0bbe9c3a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#45 0x00007f0bbe9c59a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#46 0x00007f0bbe9c8dd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#47 0x00007f0bbe9cdc60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#48 0x00007f0bbe9c3a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#49 0x00007f0bbe9c59a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#50 0x00007f0bbe9c8dd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#51 0x00007f0bbe9cdc60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#52 0x00007f0bbe9c3a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#53 0x00007f0bbe9c59a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#54 0x00007f0bbe9c8dd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#55 0x00007f0bbe9cdc60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#56 0x00007f0b9ecc3798 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#57 0x00007f0bc0c8d186 in QGridLayoutEngine::setGeometries (this=0x24b14a8, contentsGeometry=..., styleInfo=<optimized out>) at util/qgridlayoutengine.cpp:1015
#58 0x00007f0b9ecc2f0f in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#59 0x00007f0b9ecc34c7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#60 0x00007f0bbe9cdc60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#61 0x00007f0bbe9c3a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#62 0x00007f0bbe9c59a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#63 0x00007f0bbe9c8dd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#64 0x00007f0bbe9cd4fe in QQuickItem::setHeight(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#65 0x00007f0bbea93d8f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#66 0x00007f0bbea95442 in QQuickView::resizeEvent(QResizeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#67 0x00007f0bc09b97b5 in QWindow::event (this=0x2322e20, ev=<optimized out>) at kernel/qwindow.cpp:2051
#68 0x00007f0bbe9ecdd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#69 0x00007f0bc0f6db2c in QApplicationPrivate::notify_helper (this=0x1e8fb10, receiver=0x2322e20, e=0x7ffd260576c0) at kernel/qapplication.cpp:3720
#70 0x00007f0bc0f73000 in QApplication::notify (this=0x7ffd26057ac0, receiver=0x2322e20, e=0x7ffd260576c0) at kernel/qapplication.cpp:3503
#71 0x00007f0bc0181c2b in QCoreApplication::notifyInternal (this=0x7ffd26057ac0, receiver=receiver@entry=0x2322e20, event=event@entry=0x7ffd260576c0) at kernel/qcoreapplication.cpp:935
#72 0x00007f0bc09b1f41 in sendSpontaneousEvent (event=0x7ffd260576c0, receiver=0x2322e20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#73 QGuiApplicationPrivate::processExposeEvent (e=0x25f40c0) at kernel/qguiapplication.cpp:2602
#74 0x00007f0bc09b2bbd in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x25f40c0) at kernel/qguiapplication.cpp:1638
#75 0x00007f0bc099734f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#76 0x00007f0bb4e4a590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#77 0x00007f0bbc5d7c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#78 0x00007f0bbc5d7f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#79 0x00007f0bbc5d7fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#80 0x00007f0bc01dac57 in QEventDispatcherGlib::processEvents (this=0x1edf040, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#81 0x00007f0bc017f3e2 in QEventLoop::exec (this=this@entry=0x7ffd260579a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#82 0x00007f0bc018702c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#83 0x00007f0bc09a831c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#84 0x00007f0bc0f697a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#85 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi