Bug 347279

Application: systemsettings5 (5.3.0)

Qt Version: 5.4.1
Operating System: Linux 3.13.0-30-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
1. Enter System Settings
2. Enter Windows Decoration

It might be related to my current window decoration style: Oxygen.

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 0x7fba12f2d780 (LWP 3291))]

Thread 3 (Thread 0x7fba02571700 (LWP 3292)):
#0  0x00007fba0f6a68dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fba0d9c0b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fba0d9c264f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fba04abc099 in QXcbEventReader::run (this=0x2242470) at qxcbconnection.cpp:1105
#4  0x00007fba0fd27b0e in QThreadPrivate::start (arg=0x2242470) at thread/qthread_unix.cpp:337
#5  0x00007fba0c8da6aa in start_thread (arg=0x7fba02571700) at pthread_create.c:333
#6  0x00007fba0f6b1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fb9deffc700 (LWP 3362)):
#0  0x00007fba0fdddc79 in QElapsedTimer::isMonotonic () at tools/qelapsedtimer_unix.cpp:150
#1  0x00007fba0ffbcb3e in QTimerInfoList::repairTimersIfNeeded (this=0x7fb9c40012a0) at kernel/qtimerinfo_unix.cpp:155
#2  0x00007fba0ffbcbb3 in QTimerInfoList::timerWait (this=0x7fb9c40012a0, tm=...) at kernel/qtimerinfo_unix.cpp:380
#3  0x00007fba0ffbe03e in timerSourcePrepareHelper (timeout=0x7fb9deffbc54, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#4  timerSourcePrepare (source=<optimized out>, timeout=0x7fb9deffbc54) at kernel/qeventdispatcher_glib.cpp:160
#5  0x00007fba0c3bb3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fba0c3bbde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fba0c3bbfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fba0ffbec6c in QEventDispatcherGlib::processEvents (this=0x7fb9c40010f0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#9  0x00007fba0ff633e2 in QEventLoop::exec (this=this@entry=0x7fb9deffbe20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007fba0fd22b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#11 0x00007fba0ecedf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007fba0fd27b0e in QThreadPrivate::start (arg=0x2a2a790) at thread/qthread_unix.cpp:337
#13 0x00007fba0c8da6aa in start_thread (arg=0x7fb9deffc700) at pthread_create.c:333
#14 0x00007fba0f6b1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fba12f2d780 (LWP 3291)):
[KCrash Handler]
#6  0x0000000000000020 in ?? ()
#7  0x00007fb9ec4f58d1 in KDecoration2::Decoration::update(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8  0x00007fb9ec4f594b in KDecoration2::Decoration::update() () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#9  0x00007fb9e183f9e0 in Breeze::Decoration::setOpacity (this=this@entry=0x29be860, value=<optimized out>) at ../../kdecoration/breezedecoration.cpp:96
#10 0x00007fb9e1861148 in Breeze::Decoration::qt_metacall (this=0x29be860, _c=QMetaObject::WriteProperty, _id=0, _a=0x7fffce6b9810) at moc_breezedecoration.cpp:150
#11 0x00007fba0fd085ca in updateProperty (newValue=..., this=0x3234320) at animation/qpropertyanimation.cpp:135
#12 QPropertyAnimation::updateCurrentValue (this=<optimized out>, value=...) at animation/qpropertyanimation.cpp:242
#13 0x00007fba0fd03f48 in QVariantAnimationPrivate::setCurrentValueForProgress (this=this@entry=0x3234320, progress=progress@entry=0.34168888888888888) at animation/qvariantanimation.cpp:290
#14 0x00007fba0fd04d1b in recalculateCurrentInterval (force=false, this=0x3234320) at animation/qvariantanimation.cpp:275
#15 QVariantAnimation::updateCurrentTime (this=<optimized out>) at animation/qvariantanimation.cpp:693
#16 0x00007fba0fd00baf in QAbstractAnimation::setCurrentTime (this=0x3242b40, msecs=62) at animation/qabstractanimation.cpp:1321
#17 0x00007fba0fd00e96 in updateAnimationsTime (delta=88, this=0x23eb7d0) at animation/qabstractanimation.cpp:606
#18 QUnifiedTimer::updateAnimationTimers (this=0x24f5b00) at animation/qabstractanimation.cpp:323
#19 0x00007fba0ed28a5e in QAbstractAnimationJob::setState(QAbstractAnimationJob::State) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007fba0e845dac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007fba0e8a0244 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007fba0e84eea3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007fba0e7acdd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007fba0e7b11ae in QQuickItem::setWidth(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007fba0e7bdbe6 in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007fba0ec67ba7 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 0x00007fba0ecdc51c in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007fba0ecdcc7e in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#29 0x00007fba0ecb6497 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#30 0x00007fba0ecb645e in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#31 0x00007fba0ec5310c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#32 0x00007fba0ff96141 in QMetaObject::activate (sender=0x2b65d40, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3603
#33 0x00007fba0e7ace39 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#34 0x00007fba0e844edc in QQuickFlickable::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007fba0e7b1c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#36 0x00007fba0e7a7a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#37 0x00007fba0e7a99a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#38 0x00007fba0e7acdd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#39 0x00007fba0e7b1c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#40 0x00007fba0e7a7a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#41 0x00007fba0e7a99a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#42 0x00007fba0e7acdd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#43 0x00007fba0e7b1c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#44 0x00007fba0e7a7a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#45 0x00007fba0e7a99a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#46 0x00007fba0e7acdd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#47 0x00007fba0e7b1c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#48 0x00007fba0e7a7a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#49 0x00007fba0e7a99a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#50 0x00007fba0e7acdd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#51 0x00007fba0e7b1c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#52 0x00007fba0e7a7a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#53 0x00007fba0e7a99a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#54 0x00007fba0e7acdd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#55 0x00007fba0e7b1c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#56 0x00007fb9ec253798 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#57 0x00007fba10a71186 in QGridLayoutEngine::setGeometries (this=0x2854508, contentsGeometry=..., styleInfo=<optimized out>) at util/qgridlayoutengine.cpp:1015
#58 0x00007fb9ec252f0f in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#59 0x00007fb9ec2534c7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#60 0x00007fba0e7b1c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#61 0x00007fba0e7a7a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#62 0x00007fba0e7a99a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#63 0x00007fba0e7acdd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#64 0x00007fba0e7b14fe in QQuickItem::setHeight(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#65 0x00007fba0e877d8f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#66 0x00007fba0e879442 in QQuickView::resizeEvent(QResizeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#67 0x00007fba1079d7b5 in QWindow::event (this=0x266a070, ev=<optimized out>) at kernel/qwindow.cpp:2051
#68 0x00007fba0e7d0dd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#69 0x00007fba10d51b2c in QApplicationPrivate::notify_helper (this=0x222ab10, receiver=0x266a070, e=0x7fffce6bb230) at kernel/qapplication.cpp:3720
#70 0x00007fba10d57000 in QApplication::notify (this=0x7fffce6bb640, receiver=0x266a070, e=0x7fffce6bb230) at kernel/qapplication.cpp:3503
#71 0x00007fba0ff65c2b in QCoreApplication::notifyInternal (this=0x7fffce6bb640, receiver=receiver@entry=0x266a070, event=event@entry=0x7fffce6bb230) at kernel/qcoreapplication.cpp:935
#72 0x00007fba10791ef4 in sendSpontaneousEvent (event=0x7fffce6bb230, receiver=0x266a070) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#73 QGuiApplicationPrivate::processGeometryChangeEvent (e=<optimized out>) at kernel/qguiapplication.cpp:2039
#74 0x00007fba10796c3d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x298eb00) at kernel/qguiapplication.cpp:1588
#75 0x00007fba1077b34f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#76 0x00007fba04ae6590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#77 0x00007fba0c3bbc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#78 0x00007fba0c3bbf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#79 0x00007fba0c3bbfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#80 0x00007fba0ffbec57 in QEventDispatcherGlib::processEvents (this=0x2269010, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#81 0x00007fba0ff633e2 in QEventLoop::exec (this=this@entry=0x7fffce6bb520, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#82 0x00007fba0ff6b02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#83 0x00007fba1078c31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#84 0x00007fba10d4d7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#85 0x000000000040ef5b in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Reported using DrKonqi