Application: systemsettings5 (5.3.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-18-generic x86_64
Distribution: Ubuntu 15.04

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

In System Settings -> Application Style -> Window Decorations.  Whenever I try to scroll down through my available window decorations it crashes.

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".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7fadab83b780 (LWP 23455))]

Thread 7 (Thread 0x7fad99046700 (LWP 23456)):
#0  0x00007fada7fb98dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fada62d3b72 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fada62d564f in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fad9be14099 in QXcbEventReader::run() (this=0x1c99a80) at qxcbconnection.cpp:1105
#4  0x00007fada863ab0e in QThreadPrivate::start(void*) (arg=0x1c99a80) at thread/qthread_unix.cpp:337
#5  0x00007fada51ed6aa in start_thread (arg=0x7fad99046700) at pthread_create.c:333
#6  0x00007fada7fc4eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fad8f42d700 (LWP 23459)):
#0  0x00007fada7fb549d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fada1135f45 in  () at /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fada4d122f0 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7fad8f42cd70, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#3  0x00007fada4d122f0 in g_wakeup_acknowledge (wakeup=0x1d57400) at /build/buildd/glib2.0-2.44.0/./glib/gwakeup.c:210
#4  0x00007fada4cce96c in g_main_context_check (context=context@entry=0x1d8da00, max_priority=2147483647, fds=fds@entry=0x7fad880010e0, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3600
#5  0x00007fada4ccee60 in g_main_context_iterate (context=0x1d8da00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3805
#6  0x00007fada4ccf242 in g_main_loop_run (loop=0x1d8d0a0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4002
#7  0x00007fad928f0ae6 in gdbus_shared_thread_func (user_data=0x1d8c790) at /build/buildd/glib2.0-2.44.0/./gio/gdbusprivate.c:274
#8  0x00007fada4cf5955 in g_thread_proxy (data=0x1d5b0a0) at /build/buildd/glib2.0-2.44.0/./glib/gthread.c:764
#9  0x00007fada51ed6aa in start_thread (arg=0x7fad8f42d700) at pthread_create.c:333
#10 0x00007fada7fc4eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fad8ec2c700 (LWP 23462)):
#0  0x00007fada7fb98dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fada4cceebc in g_main_context_iterate (priority=2147483647, n_fds=2, fds=0x7fad800008c0, timeout=-1, context=0x1c553d0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4103
#2  0x00007fada4cceebc in g_main_context_iterate (context=context@entry=0x1c553d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007fada4ccefcc in g_main_context_iteration (context=0x1c553d0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007fada4ccf009 in glib_worker_main (data=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:5618
#5  0x00007fada4cf5955 in g_thread_proxy (data=0x1d5b2d0) at /build/buildd/glib2.0-2.44.0/./glib/gthread.c:764
#6  0x00007fada51ed6aa in start_thread (arg=0x7fad8ec2c700) at pthread_create.c:333
#7  0x00007fada7fc4eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fad85c02700 (LWP 23477)):
#0  0x00007fada4d13789 in g_mutex_lock (mutex=mutex@entry=0x7fad7c0038e0) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1342
#1  0x00007fada4cceea2 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fad7c0034e0, timeout=-1, context=0x7fad7c0038e0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:4098
#2  0x00007fada4cceea2 in g_main_context_iterate (context=context@entry=0x7fad7c0038e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3803
#3  0x00007fada4ccefcc in g_main_context_iteration (context=0x7fad7c0038e0, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007fada88d1c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fad7c001390, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fada88763e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fad85c01e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fada8635b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fada7600f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fada863ab0e in QThreadPrivate::start(void*) (arg=0x22c6da0) at thread/qthread_unix.cpp:337
#9  0x00007fada51ed6aa in start_thread (arg=0x7fad85c02700) at pthread_create.c:333
#10 0x00007fada7fc4eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fad6b6d8700 (LWP 23478)):
#0  0x00007fada4d13789 in g_mutex_lock (mutex=mutex@entry=0x7fad64000990) at /build/buildd/glib2.0-2.44.0/./glib/gthread-posix.c:1342
#1  0x00007fada4cce2d7 in g_main_context_prepare (context=context@entry=0x7fad64000990, priority=priority@entry=0x7fad6b6d7ce0) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3350
#2  0x00007fada4ccede8 in g_main_context_iterate (context=context@entry=0x7fad64000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3788
#3  0x00007fada4ccefcc in g_main_context_iteration (context=0x7fad64000990, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#4  0x00007fada88d1c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fad640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fada88763e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fad6b6d7e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fada8635b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fada7600f65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fada863ab0e in QThreadPrivate::start(void*) (arg=0x27e8940) at thread/qthread_unix.cpp:337
#9  0x00007fada51ed6aa in start_thread (arg=0x7fad6b6d8700) at pthread_create.c:333
#10 0x00007fada7fc4eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fad6922b700 (LWP 23479)):
[KCrash Handler]
#6  0x00007fada6d349ac in  () at /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#7  0x00007fada6d34e26 in ManagedTextureNode::~ManagedTextureNode() () at /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#8  0x00007fada707bc13 in QSGNode::destroy() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fada707bc47 in QSGNode::~QSGNode() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fada707bc79 in QSGNode::~QSGNode() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fada707bc13 in QSGNode::destroy() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fada707bc47 in QSGNode::~QSGNode() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007fada707bdf9 in QSGOpacityNode::~QSGOpacityNode() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fada707bc13 in QSGNode::destroy() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007fada707bc47 in QSGNode::~QSGNode() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fada707bdb9 in QSGTransformNode::~QSGTransformNode() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007fada70d93c4 in QQuickWindowPrivate::cleanupNodes() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007fada70d945e in QQuickWindowPrivate::updateDirtyNodes() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007fada70d9d80 in QQuickWindowPrivate::syncSceneGraph() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007fada70ab1dd in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007fada70ac0a1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007fada70ad360 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007fada863ab0e in QThreadPrivate::start(void*) (arg=0x2945300) at thread/qthread_unix.cpp:337
#24 0x00007fada51ed6aa in start_thread (arg=0x7fad6922b700) at pthread_create.c:333
#25 0x00007fada7fc4eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fadab83b780 (LWP 23455)):
#0  0x00007fada51f2da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fada863bc6b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x3242220) at thread/qwaitcondition_unix.cpp:128
#2  0x00007fada863bc6b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x2945340, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fada70aec48 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fada70afcad in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fada9664b2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=0x1c6c550, receiver=0x235f080, e=0x7fff6dbb2750) at kernel/qapplication.cpp:3720
#6  0x00007fada966a000 in QApplication::notify(QObject*, QEvent*) (this=0x7fff6dbb2ac0, receiver=0x235f080, e=0x7fff6dbb2750) at kernel/qapplication.cpp:3503
#7  0x00007fada8878c2b in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fff6dbb2ac0, receiver=0x235f080, event=event@entry=0x7fff6dbb2750) at kernel/qcoreapplication.cpp:935
#8  0x00007fada88d0ae5 in QTimerInfoList::activateTimers() (event=0x7fff6dbb2750, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#9  0x00007fada88d0ae5 in QTimerInfoList::activateTimers() (this=0x1e43a40) at kernel/qtimerinfo_unix.cpp:635
#10 0x00007fada88d0f61 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#11 0x00007fada4ccec3d in g_main_context_dispatch (context=0x7fad94001710) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3122
#12 0x00007fada4ccec3d in g_main_context_dispatch (context=context@entry=0x7fad94001710) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3737
#13 0x00007fada4ccef20 in g_main_context_iterate (context=context@entry=0x7fad94001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3808
#14 0x00007fada4ccefcc in g_main_context_iteration (context=0x7fad94001710, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#15 0x00007fada88d1c57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1e47660, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#16 0x00007fada88763e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff6dbb29a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#17 0x00007fada887e02c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1188
#18 0x00007fada909f31c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1510
#19 0x00007fada96607a5 in QApplication::exec() () at kernel/qapplication.cpp:2956
#20 0x000000000040ef6b in main(int, char**) (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Reported using DrKonqi