Bug 348142

Application: systemsettings5 (5.2.2)

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:
I was setting up the edges of the windows style application / window decorations

-- Backtrace:
Application: Impostazioni di sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4f0de69780 (LWP 1690))]

Thread 7 (Thread 0x7f4efb768700 (LWP 1691)):
#0  0x00007f4f0a5cf8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4f088e9b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4f088eb64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4efe4fb099 in QXcbEventReader::run (this=0x22191c0) at qxcbconnection.cpp:1105
#4  0x00007f4f0ac50b0e in QThreadPrivate::start (arg=0x22191c0) at thread/qthread_unix.cpp:337
#5  0x00007f4f078036aa in start_thread (arg=0x7f4efb768700) at pthread_create.c:333
#6  0x00007f4f0a5daeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f4ed555e700 (LWP 1703)):
#0  0x00007f4f072e43ca in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4f072e4de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4f072e4fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4f0aee7c6c in QEventDispatcherGlib::processEvents (this=0x7f4ec80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4f0ae8c3e2 in QEventLoop::exec (this=this@entry=0x7f4ed555de40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4f0ac4bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4f0ac50b0e in QThreadPrivate::start (arg=0x31e7210) at thread/qthread_unix.cpp:337
#7  0x00007f4f078036aa in start_thread (arg=0x7f4ed555e700) at pthread_create.c:333
#8  0x00007f4f0a5daeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f4ee93ce700 (LWP 1907)):
#0  0x00007f4f073297a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4f072e4a2a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4f072e4f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4f072e4fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4f0aee7c6c in QEventDispatcherGlib::processEvents (this=0x7f4edc16a8e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4f0ae8c3e2 in QEventLoop::exec (this=this@entry=0x7f4ee93cde00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4f0ac4bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4ee2aa8cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f4f0ac50b0e in QThreadPrivate::start (arg=0x2eb30a0) at thread/qthread_unix.cpp:337
#9  0x00007f4f078036aa in start_thread (arg=0x7f4ee93ce700) at pthread_create.c:333
#10 0x00007f4f0a5daeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f4ec15ec700 (LWP 1908)):
#0  0x00007f4f0a5cf8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4f072e4ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4f072e4fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4f0aee7c6c in QEventDispatcherGlib::processEvents (this=0x7f4ebc5e74c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4f0ae8c3e2 in QEventLoop::exec (this=this@entry=0x7f4ec15ebe20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4f0ac4bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4f09c16f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4f0ac50b0e in QThreadPrivate::start (arg=0x2fa5860) at thread/qthread_unix.cpp:337
#8  0x00007f4f078036aa in start_thread (arg=0x7f4ec15ec700) at pthread_create.c:333
#9  0x00007f4f0a5daeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f4eec700700 (LWP 1909)):
#0  0x00007f4f0a5cb49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4f03757f45 in ?? () from /usr/lib/nvidia-340/tls/libnvidia-tls.so.340.76
#2  0x00007f4f073282f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4f072e496c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4f072e4e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4f072e4fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f4f0aee7c6c in QEventDispatcherGlib::processEvents (this=0x7f4ee4036e30, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f4f0ae8c3e2 in QEventLoop::exec (this=this@entry=0x7f4eec6ffe20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f4f0ac4bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f4f09c16f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f4f0ac50b0e in QThreadPrivate::start (arg=0x3b1c550) at thread/qthread_unix.cpp:337
#11 0x00007f4f078036aa in start_thread (arg=0x7f4eec700700) at pthread_create.c:333
#12 0x00007f4f0a5daeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f4ec3ffe700 (LWP 1910)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4f0ac51c6b in wait (time=18446744073709551615, this=0x3f47a60) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3b271a0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f4f096c2fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f4f096c33a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f4f0ac50b0e in QThreadPrivate::start (arg=0x3b27120) at thread/qthread_unix.cpp:337
#6  0x00007f4f078036aa in start_thread (arg=0x7f4ec3ffe700) at pthread_create.c:333
#7  0x00007f4f0a5daeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4f0de69780 (LWP 1690)):
[KCrash Handler]
#6  0x00007f4f0a898cf8 in main_arena () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x00007f4eeb8846e1 in KDecoration2::Decoration::update(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8  0x00007f4eeb88475b in KDecoration2::Decoration::update() () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#9  0x00007f4ee24e6370 in Breeze::Decoration::setOpacity (this=this@entry=0x2e4cfe0, value=<optimized out>) at ../../kdecoration/breezedecoration.cpp:92
#10 0x00007f4ee25067a8 in Breeze::Decoration::qt_metacall (this=0x2e4cfe0, _c=QMetaObject::WriteProperty, _id=0, _a=0x7ffe4f77d230) at moc_breezedecoration.cpp:146
#11 0x00007f4f0ac315ca in updateProperty (newValue=..., this=0x3057bb0) at animation/qpropertyanimation.cpp:135
#12 QPropertyAnimation::updateCurrentValue (this=<optimized out>, value=...) at animation/qpropertyanimation.cpp:242
#13 0x00007f4f0ac2cf48 in QVariantAnimationPrivate::setCurrentValueForProgress (this=this@entry=0x3057bb0, progress=progress@entry=0.96444444444444444) at animation/qvariantanimation.cpp:290
#14 0x00007f4f0ac2dd1b in recalculateCurrentInterval (force=false, this=0x3057bb0) at animation/qvariantanimation.cpp:275
#15 QVariantAnimation::updateCurrentTime (this=<optimized out>) at animation/qvariantanimation.cpp:693
#16 0x00007f4f0ac29baf in QAbstractAnimation::setCurrentTime (this=0x27d8200, msecs=130) at animation/qabstractanimation.cpp:1321
#17 0x00007f4f0ac29e96 in updateAnimationsTime (delta=20, this=0x2314ad0) at animation/qabstractanimation.cpp:606
#18 QUnifiedTimer::updateAnimationTimers (this=0x24c1e50) at animation/qabstractanimation.cpp:323
#19 0x00007f4f0ac2a7dc in QAnimationDriver::advanceAnimation (this=<optimized out>, timeStep=-1) at animation/qabstractanimation.cpp:820
#20 0x00007f4f096a71ee in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f4f096c568a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f4f096c7a8b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f4f096c830a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007f4f0b6c67b5 in QWindow::event (this=0x3073870, ev=<optimized out>) at kernel/qwindow.cpp:2051
#25 0x00007f4f096f9dd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f4f0bc7ab2c in QApplicationPrivate::notify_helper (this=0x21ec430, receiver=0x3073870, e=0x7ffe4f77d990) at kernel/qapplication.cpp:3720
#27 0x00007f4f0bc80000 in QApplication::notify (this=0x7ffe4f77dd90, receiver=0x3073870, e=0x7ffe4f77d990) at kernel/qapplication.cpp:3503
#28 0x00007f4f0ae8ec2b in QCoreApplication::notifyInternal (this=0x7ffe4f77dd90, receiver=receiver@entry=0x3073870, event=event@entry=0x7ffe4f77d990) at kernel/qcoreapplication.cpp:935
#29 0x00007f4f0b6bee86 in sendSpontaneousEvent (event=0x7ffe4f77d990, receiver=0x3073870) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#30 QGuiApplicationPrivate::processExposeEvent (e=0x37d1a30) at kernel/qguiapplication.cpp:2613
#31 0x00007f4f0b6bfbbd in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x37d1a30) at kernel/qguiapplication.cpp:1638
#32 0x00007f4f0b6a434f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#33 0x00007f4efe525590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#34 0x00007f4f072e4c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f4f072e4f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f4f072e4fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f4f0aee7c57 in QEventDispatcherGlib::processEvents (this=0x22578d0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#38 0x00007f4f0ae8c3e2 in QEventLoop::exec (this=this@entry=0x7ffe4f77dc70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#39 0x00007f4f0ae9402c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#40 0x00007f4f0b6b531c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#41 0x00007f4f0bc767a5 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