Application: systemsettings5 (5.2.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-9-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
I was installing new window decoration themes and after installing the theme called two0ten, system settings kept crashing.

-- 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 0x7f4371603780 (LWP 12839))]

Thread 4 (Thread 0x7f434f5f9700 (LWP 12841)):
#0  0x00007f436dd8f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f436b4cfebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f436b4cffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f436e6a7bfc in QEventDispatcherGlib::processEvents (this=0x7f43480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f436e64c3b2 in QEventLoop::exec (this=this@entry=0x7f434f5f8e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f436e40bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f43502b1f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f436e410b0e in QThreadPrivate::start (arg=0x2533bd0) at thread/qthread_unix.cpp:337
#8  0x00007f436b9ee6aa in start_thread (arg=0x7f434f5f9700) at pthread_create.c:333
#9  0x00007f436dd9aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f4347a75700 (LWP 12842)):
#0  0x00007f436e4089ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x2a1bb88: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x2a1bb88: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x2a1bb88, this@entry=0x1) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x2a1bb88, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x2a1bb88) at thread/qmutex.cpp:212
#5  0x00007f436e6a716b in QMutexLocker (m=0x2a1bb88, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x2a1bb60) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (s=0x7f43400012d0, timeout=0x7f4347a74c54) at kernel/qeventdispatcher_glib.cpp:254
#8  0x00007f436b4cf3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f436b4cfde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f436b4cffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f436e6a7bfc in QEventDispatcherGlib::processEvents (this=0x7f43400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#12 0x00007f436e64c3b2 in QEventLoop::exec (this=this@entry=0x7f4347a74e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f436e40bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007f43502b1f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f436e410b0e in QThreadPrivate::start (arg=0x2a1c0a0) at thread/qthread_unix.cpp:337
#16 0x00007f436b9ee6aa in start_thread (arg=0x7f4347a75700) at pthread_create.c:333
#17 0x00007f436dd9aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f43453f3700 (LWP 12843)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f436e411c6b in wait (time=18446744073709551615, this=0x34175e0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x340ffb0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f4350a25f7b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f4350a26370 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f436e410b0e in QThreadPrivate::start (arg=0x340ff30) at thread/qthread_unix.cpp:337
#6  0x00007f436b9ee6aa in start_thread (arg=0x7f43453f3700) at pthread_create.c:333
#7  0x00007f436dd9aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4371603780 (LWP 12839)):
[KCrash Handler]
#6  0x0000000c0000000c in ?? ()
#7  0x00007f4350cab6e1 in KDecoration2::Decoration::update(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8  0x00007f4350cab75b in KDecoration2::Decoration::update() () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#9  0x00007f434c08b370 in Breeze::Decoration::setOpacity (this=this@entry=0x29a8d50, value=<optimized out>) at ../../kdecoration/breezedecoration.cpp:92
#10 0x00007f434c0ab788 in Breeze::Decoration::qt_metacall (this=0x29a8d50, _c=QMetaObject::WriteProperty, _id=0, _a=0x7ffd8e0ddf70) at moc_breezedecoration.cpp:146
#11 0x00007f436e3f15ca in updateProperty (newValue=..., this=0x29ddb60) at animation/qpropertyanimation.cpp:135
#12 QPropertyAnimation::updateCurrentValue (this=<optimized out>, value=...) at animation/qpropertyanimation.cpp:242
#13 0x00007f436e3ecf48 in QVariantAnimationPrivate::setCurrentValueForProgress (this=this@entry=0x29ddb60, progress=progress@entry=0.96444444444444444) at animation/qvariantanimation.cpp:290
#14 0x00007f436e3edd1b in recalculateCurrentInterval (force=false, this=0x29ddb60) at animation/qvariantanimation.cpp:275
#15 QVariantAnimation::updateCurrentTime (this=<optimized out>) at animation/qvariantanimation.cpp:693
#16 0x00007f436e3e9baf in QAbstractAnimation::setCurrentTime (this=0x29ad060, msecs=130) at animation/qabstractanimation.cpp:1321
#17 0x00007f436e3e9e96 in updateAnimationsTime (delta=20, this=0x20d1dd0) at animation/qabstractanimation.cpp:606
#18 QUnifiedTimer::updateAnimationTimers (this=0x215a860) at animation/qabstractanimation.cpp:323
#19 0x00007f436e3ea7dc in QAnimationDriver::advanceAnimation (this=<optimized out>, timeStep=-1) at animation/qabstractanimation.cpp:820
#20 0x00007f4350a0a1be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f4350a2865a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f4350a2aa5b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f4350a2b2da in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007f436ee857b5 in QWindow::event (this=0x253d0e0, ev=<optimized out>) at kernel/qwindow.cpp:2051
#25 0x00007f4350a5cda3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f436f439b2c in QApplicationPrivate::notify_helper (this=0x1ebff80, receiver=0x253d0e0, e=0x7ffd8e0de6d0) at kernel/qapplication.cpp:3720
#27 0x00007f436f43f000 in QApplication::notify (this=0x7ffd8e0dead0, receiver=0x253d0e0, e=0x7ffd8e0de6d0) at kernel/qapplication.cpp:3503
#28 0x00007f436e64ebfb in QCoreApplication::notifyInternal (this=0x7ffd8e0dead0, receiver=receiver@entry=0x253d0e0, event=event@entry=0x7ffd8e0de6d0) at kernel/qcoreapplication.cpp:935
#29 0x00007f436ee7de86 in sendSpontaneousEvent (event=0x7ffd8e0de6d0, receiver=0x253d0e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#30 QGuiApplicationPrivate::processExposeEvent (e=0x2535e20) at kernel/qguiapplication.cpp:2613
#31 0x00007f436ee7ebbd in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x2535e20) at kernel/qguiapplication.cpp:1638
#32 0x00007f436ee6334f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#33 0x00007f43632f64f0 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#34 0x00007f436b4cfc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f436b4cff20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f436b4cffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f436e6a7be7 in QEventDispatcherGlib::processEvents (this=0x1f2bfb0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#38 0x00007f436e64c3b2 in QEventLoop::exec (this=this@entry=0x7ffd8e0de9b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#39 0x00007f436e653ffc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#40 0x00007f436ee7431c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#41 0x00007f436f4357a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#42 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi