Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
opened systemsettings->application style->window decorations
start scrolling on installed decorations and systemsettings 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 0x7f1701535780 (LWP 2408))]

Thread 5 (Thread 0x7f16eebd6700 (LWP 2409)):
#0  0x00007f16fdca28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f16fbfbcb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f16fbfbe64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f16f1993099 in QXcbEventReader::run (this=0x1721220) at qxcbconnection.cpp:1105
#4  0x00007f16fe323b0e in QThreadPrivate::start (arg=0x1721220) at thread/qthread_unix.cpp:337
#5  0x00007f16faed66aa in start_thread (arg=0x7f16eebd6700) at pthread_create.c:333
#6  0x00007f16fdcadeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f16df516700 (LWP 2412)):
#0  0x00007f16fa9fc789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f16fa9b7409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16fa9b7de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16fa9b7fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f16fe5bac6c in QEventDispatcherGlib::processEvents (this=0x7f16d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f16fe55f3e2 in QEventLoop::exec (this=this@entry=0x7f16df515e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f16fe31eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f16fd2e9f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f16fe323b0e in QThreadPrivate::start (arg=0x1ec3730) at thread/qthread_unix.cpp:337
#9  0x00007f16faed66aa in start_thread (arg=0x7f16df516700) at pthread_create.c:333
#10 0x00007f16fdcadeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f16d7b16700 (LWP 2413)):
#0  0x00007f16fa9b7f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f16fa9b7fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16fe5bac6c in QEventDispatcherGlib::processEvents (this=0x7f16d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f16fe55f3e2 in QEventLoop::exec (this=this@entry=0x7f16d7b15e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f16fe31eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f16fd2e9f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f16fe323b0e in QThreadPrivate::start (arg=0x2102730) at thread/qthread_unix.cpp:337
#7  0x00007f16faed66aa in start_thread (arg=0x7f16d7b16700) at pthread_create.c:333
#8  0x00007f16fdcadeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f16d5725700 (LWP 2414)):
[KCrash Handler]
#6  0x00007f16c87e4e50 in ?? ()
#7  0x00007f16fca1de26 in ManagedTextureNode::~ManagedTextureNode() () from /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#8  0x00007f16fcd64c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f16fcd64c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f16fcd64c79 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f16fcd64c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f16fcd64c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f16fcd64df9 in QSGOpacityNode::~QSGOpacityNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f16fcd64c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f16fcd64c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f16fcd64db9 in QSGTransformNode::~QSGTransformNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f16fcdc23c4 in QQuickWindowPrivate::cleanupNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f16fcdc245e in QQuickWindowPrivate::updateDirtyNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f16fcdc2d80 in QQuickWindowPrivate::syncSceneGraph() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f16fcd941dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f16fcd950a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f16fcd96360 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f16fe323b0e in QThreadPrivate::start (arg=0x25577e0) at thread/qthread_unix.cpp:337
#24 0x00007f16faed66aa in start_thread (arg=0x7f16d5725700) at pthread_create.c:333
#25 0x00007f16fdcadeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f1701535780 (LWP 2408)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f16fe324c6b in wait (time=18446744073709551615, this=0x1c55450) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2557820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f16fcd97c48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f16fcd98cad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f16ff34db2c in QApplicationPrivate::notify_helper (this=0x16f2550, receiver=0x1c4c3b0, e=0x7ffc100ca970) at kernel/qapplication.cpp:3720
#6  0x00007f16ff353000 in QApplication::notify (this=0x7ffc100cace0, receiver=0x1c4c3b0, e=0x7ffc100ca970) at kernel/qapplication.cpp:3503
#7  0x00007f16fe561c2b in QCoreApplication::notifyInternal (this=0x7ffc100cace0, receiver=0x1c4c3b0, event=event@entry=0x7ffc100ca970) at kernel/qcoreapplication.cpp:935
#8  0x00007f16fe5b9ae5 in sendEvent (event=0x7ffc100ca970, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#9  QTimerInfoList::activateTimers (this=0x17619a0) at kernel/qtimerinfo_unix.cpp:635
#10 0x00007f16fe5b9f61 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#11 0x00007f16fa9b7c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f16fa9b7f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f16fa9b7fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f16fe5bac57 in QEventDispatcherGlib::processEvents (this=0x1768ce0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#15 0x00007f16fe55f3e2 in QEventLoop::exec (this=this@entry=0x7ffc100cabc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#16 0x00007f16fe56702c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#17 0x00007f16fed8831c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#18 0x00007f16ff3497a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#19 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi