Bug 357148

Application: systemsettings5 (5.4.1)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-22-generic x86_64
Distribution: Ubuntu 15.10

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

In System Settings I selected Applicattion Style. This after I was installing a few themes and cursors and so.

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 0x7fe84a436800 (LWP 22903))]

Thread 5 (Thread 0x7fe83746b700 (LWP 22904)):
#0  0x00007fe846bce8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe8448debd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fe8448e074f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fe83a229a39 in QXcbEventReader::run (this=0xa96f90) at qxcbconnection.cpp:1105
#4  0x00007fe8472c12be in QThreadPrivate::start (arg=0xa96f90) at thread/qthread_unix.cpp:337
#5  0x00007fe8440696aa in start_thread (arg=0x7fe83746b700) at pthread_create.c:333
#6  0x00007fe846bd9eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fe827c8b700 (LWP 22906)):
#0  0x00007fe846bce8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe843b4a1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe843b4a2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe8474f829b in QEventDispatcherGlib::processEvents (this=0x7fe8200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fe84749e75a in QEventLoop::exec (this=this@entry=0x7fe827c8ada0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fe8472bc3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fe845c45f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fe8472c12be in QThreadPrivate::start (arg=0xfe56f0) at thread/qthread_unix.cpp:337
#8  0x00007fe8440696aa in start_thread (arg=0x7fe827c8b700) at pthread_create.c:333
#9  0x00007fe846bd9eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fe81ffff700 (LWP 22907)):
#0  0x00007fe843b8e869 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe843b49789 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe843b4a11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe843b4a2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe8474f829b in QEventDispatcherGlib::processEvents (this=0x7fe8180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fe84749e75a in QEventLoop::exec (this=this@entry=0x7fe81fffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fe8472bc3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fe845c45f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fe8472c12be in QThreadPrivate::start (arg=0x14ca680) at thread/qthread_unix.cpp:337
#9  0x00007fe8440696aa in start_thread (arg=0x7fe81ffff700) at pthread_create.c:333
#10 0x00007fe846bd9eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fe81da27700 (LWP 22908)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe8472c255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1f93e90) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1615640, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fe845f01b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fe845f023c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fe8472c12be in QThreadPrivate::start (arg=0x16155c0) at thread/qthread_unix.cpp:337
#6  0x00007fe8440696aa in start_thread (arg=0x7fe81da27700) at pthread_create.c:333
#7  0x00007fe846bd9eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fe84a436800 (LWP 22903)):
[KCrash Handler]
#6  0x00007fe8285ab917 in KDecoration2::Decoration::update(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#7  0x00007fe8285ab9bb in KDecoration2::Decoration::update() () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8  0x00007fe82440bb0d in Breeze::Decoration::setOpacity (this=this@entry=0x1468480, value=<optimized out>) at ../../kdecoration/breezedecoration.cpp:98
#9  0x00007fe8244282b8 in Breeze::Decoration::qt_metacall (this=0x1468480, _c=QMetaObject::WriteProperty, _id=0, _a=0x7ffe7b1ab0c0) at moc_breezedecoration.cpp:150
#10 0x00007fe8472a230a in QPropertyAnimationPrivate::updateProperty (newValue=..., this=0x146f140) at animation/qpropertyanimation.cpp:135
#11 QPropertyAnimation::updateCurrentValue (this=<optimized out>, value=...) at animation/qpropertyanimation.cpp:242
#12 0x00007fe84729e318 in QVariantAnimationPrivate::setCurrentValueForProgress (this=this@entry=0x146f140, progress=progress@entry=0.96444444444444444) at animation/qvariantanimation.cpp:290
#13 0x00007fe84729ea17 in QVariantAnimationPrivate::recalculateCurrentInterval (this=0x146f140, force=<optimized out>) at animation/qvariantanimation.cpp:275
#14 0x00007fe84729b42f in QAbstractAnimation::setCurrentTime (this=0x146eea0, msecs=130) at animation/qabstractanimation.cpp:1321
#15 0x00007fe84729b72d in QAnimationTimer::updateAnimationsTime (delta=20, this=0xd3f600) at animation/qabstractanimation.cpp:606
#16 QUnifiedTimer::updateAnimationTimers (this=0xcbda60) at animation/qabstractanimation.cpp:323
#17 0x00007fe84729c37c in QAnimationDriver::advanceAnimation (this=<optimized out>, timeStep=-1) at animation/qabstractanimation.cpp:820
#18 0x00007fe845ee24bf in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007fe845efef94 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007fe845f0132f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007fe845f0193b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007fe8483817c5 in QWindow::event (this=0xcba220, ev=<optimized out>) at kernel/qwindow.cpp:2058
#23 0x00007fe845f31fd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007fe848924b8c in QApplicationPrivate::notify_helper (this=this@entry=0xa69ca0, receiver=receiver@entry=0xcba220, e=e@entry=0x7ffe7b1ab7f0) at kernel/qapplication.cpp:3720
#25 0x00007fe84892a230 in QApplication::notify (this=0x7ffe7b1abbd0, receiver=0xcba220, e=0x7ffe7b1ab7f0) at kernel/qapplication.cpp:3503
#26 0x00007fe8474a0f1b in QCoreApplication::notifyInternal (this=0x7ffe7b1abbd0, receiver=receiver@entry=0xcba220, event=event@entry=0x7ffe7b1ab7f0) at kernel/qcoreapplication.cpp:935
#27 0x00007fe84837a336 in QCoreApplication::sendSpontaneousEvent (event=0x7ffe7b1ab7f0, receiver=0xcba220) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#28 QGuiApplicationPrivate::processExposeEvent (e=0x14acaa0) at kernel/qguiapplication.cpp:2616
#29 0x00007fe84837b07d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x14acaa0) at kernel/qguiapplication.cpp:1638
#30 0x00007fe8483605b8 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#31 0x00007fe83a256250 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#32 0x00007fe843b49ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fe843b4a250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fe843b4a2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fe8474f827f in QEventDispatcherGlib::processEvents (this=0xae0590, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#36 0x00007fe84749e75a in QEventLoop::exec (this=this@entry=0x7ffe7b1abab0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#37 0x00007fe8474a62cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#38 0x00007fe84837100c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#39 0x00007fe848921025 in QApplication::exec () at kernel/qapplication.cpp:2956
#40 0x000000000040f04b in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Possible duplicates by query: bug 356126, bug 355692, bug 355542, bug 355125, bug 354624.

Reported using DrKonqi