Application: kinfocenter (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-21-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I just quit system info after looking different sections when it crashed.

-- Backtrace:
Application: Centre d'informations de KDE (kinfocenter), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f39232a68c0 (LWP 4846))]

Thread 5 (Thread 0x7f3911cff700 (LWP 4847)):
#0  0x00007f39204dee8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f391a79ec62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f391a7a08d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3914051629 in QXcbEventReader::run (this=0x20464c0) at qxcbconnection.cpp:1253
#4  0x00007f3920bd484e in QThreadPrivate::start (arg=0x20464c0) at thread/qthread_unix.cpp:331
#5  0x00007f391dbca6fa in start_thread (arg=0x7f3911cff700) at pthread_create.c:333
#6  0x00007f39204eab5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f3903c5e700 (LWP 4849)):
#0  0x00007f39204dee8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f391d18a31c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f391d18a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3920e0ba9b in QEventDispatcherGlib::processEvents (this=0x7f38fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f3920db2dea in QEventLoop::exec (this=this@entry=0x7f3903c5dce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f3920bcf8a4 in QThread::exec (this=this@entry=0x2818090) at thread/qthread.cpp:503
#6  0x00007f391fcb23c5 in QQmlThreadPrivate::run (this=0x2818090) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f3920bd484e in QThreadPrivate::start (arg=0x2818090) at thread/qthread_unix.cpp:331
#8  0x00007f391dbca6fa in start_thread (arg=0x7f3903c5e700) at pthread_create.c:333
#9  0x00007f39204eab5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f38fa7e6700 (LWP 4852)):
#0  0x00007f391d1cea64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f391d1898a0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f391d18a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f391d18a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3920e0ba9b in QEventDispatcherGlib::processEvents (this=0x7f38f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f3920db2dea in QEventLoop::exec (this=this@entry=0x7f38fa7e5ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f3920bcf8a4 in QThread::exec (this=this@entry=0x466f390) at thread/qthread.cpp:503
#7  0x00007f391fcb23c5 in QQmlThreadPrivate::run (this=0x466f390) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f3920bd484e in QThreadPrivate::start (arg=0x466f390) at thread/qthread_unix.cpp:331
#9  0x00007f391dbca6fa in start_thread (arg=0x7f38fa7e6700) at pthread_create.c:333
#10 0x00007f39204eab5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f38f94e7700 (LWP 4855)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f39204dee82 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f391d18a31c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f391d18a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3920e0ba9b in QEventDispatcherGlib::processEvents (this=0x7f38ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f3920db2dea in QEventLoop::exec (this=this@entry=0x7f38f94e6ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f3920bcf8a4 in QThread::exec (this=this@entry=0x43d1820) at thread/qthread.cpp:503
#7  0x00007f391fcb23c5 in QQmlThreadPrivate::run (this=0x43d1820) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f3920bd484e in QThreadPrivate::start (arg=0x43d1820) at thread/qthread_unix.cpp:331
#9  0x00007f391dbca6fa in start_thread (arg=0x7f38f94e7700) at pthread_create.c:333
#10 0x00007f39204eab5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f39232a68c0 (LWP 4846)):
[KCrash Handler]
#6  0x00007f3920419418 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007f392041b01a in __GI_abort () at abort.c:89
#8  0x00007f3920bc1ff1 in qt_message_fatal (context=..., message=<synthetic pointer>) at global/qlogging.cpp:1578
#9  QMessageLogger::fatal (this=this@entry=0x7ffc16d836c0, msg=msg@entry=0x7f39214863a0 "QPixmap: Must construct a QGuiApplication before a QPixmap") at global/qlogging.cpp:781
#10 0x00007f39210cdb52 in qt_pixmap_thread_test () at image/qpixmap.cpp:68
#11 0x00007f392116432b in qt_pixmap_thread_test () at image/qpixmap.cpp:105
#12 QPixmap::QPixmap (this=0x4635d78) at image/qpixmap.cpp:103
#13 0x00007f39211027ff in QCursorData::QCursorData (s=Qt::ArrowCursor, this=0x4635d60) at kernel/qcursor.cpp:618
#14 QCursorData::initialize () at kernel/qcursor.cpp:649
#15 QCursor::QCursor (this=0x7ffc16d83790, c=...) at kernel/qcursor.cpp:560
#16 0x00007f391ff882e9 in QQuickItem::cursor (this=this@entry=0x251b800) at items/qquickitem.cpp:6858
#17 0x00007f392000a88b in QQuickMouseArea::setCursorShape (this=0x251b800, shape=Qt::IBeamCursor) at items/qquickmousearea.cpp:1256
#18 0x00007f39200d0f5c in QQuickMouseArea::qt_static_metacall (_o=_o@entry=0x251b800, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=12, _a=_a@entry=0x7ffc16d83980) at .moc/moc_qquickmousearea_p.cpp:444
#19 0x00007f39200d147b in QQuickMouseArea::qt_metacall (this=0x251b800, _c=QMetaObject::WriteProperty, _id=12, _a=0x7ffc16d83980) at .moc/moc_qquickmousearea_p.cpp:494
#20 0x00007f391fc163a4 in QQmlVMEMetaObject::metaCall (this=0x251baa0, c=QMetaObject::WriteProperty, _id=53, a=0x7ffc16d83980) at qml/qqmlvmemetaobject.cpp:971
#21 0x00007f391fc3063d in QQmlPropertyPrivate::writeBinding (object=0x251b800, core=..., context=0x251a370, expression=expression@entry=0x251bfa0, result=..., isUndefined=isUndefined@entry=false, flags=...) at qml/qqmlproperty.cpp:1508
#22 0x00007f391fc9e8cf in QQmlBinding::update (this=0x251bf80, flags=...) at qml/qqmlbinding.cpp:198
#23 0x00007f391fc9ecfe in QQmlBinding::update (this=<optimized out>) at qml/qqmlbinding_p.h:97
#24 QQmlBinding::expressionChanged (e=<optimized out>) at qml/qqmlbinding.cpp:260
#25 0x00007f391fc7abae in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:94
#26 0x00007f391fc1d86c in QQmlData::signalEmitted (object=0x25d3880, index=18, a=0x0) at qml/qqmlengine.cpp:768
#27 0x00007f3920de38a0 in QMetaObject::activate (sender=sender@entry=0x25d3880, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=15, argv=argv@entry=0x0) at kernel/qobject.cpp:3599
#28 0x00007f3920de47d7 in QMetaObject::activate (sender=sender@entry=0x25d3880, m=m@entry=0x7f39201b8e60 <QQuickItem::staticMetaObject>, local_signal_index=local_signal_index@entry=15, argv=argv@entry=0x0) at kernel/qobject.cpp:3578
#29 0x00007f391ff825a3 in QQuickItem::visibleChanged (this=this@entry=0x25d3880) at .moc/moc_qquickitem.cpp:1068
#30 0x00007f391ff90cce in QQuickItemPrivate::setEffectiveVisibleRecur (this=0x25d8750, newEffectiveVisible=newEffectiveVisible@entry=false) at items/qquickitem.cpp:5575
#31 0x00007f391ff90bb4 in QQuickItemPrivate::setEffectiveVisibleRecur (this=0x251ada0, newEffectiveVisible=newEffectiveVisible@entry=false) at items/qquickitem.cpp:5566
#32 0x00007f391ff90bb4 in QQuickItemPrivate::setEffectiveVisibleRecur (this=this@entry=0x251a5c0, newEffectiveVisible=<optimized out>) at items/qquickitem.cpp:5566
#33 0x00007f391ff90d24 in QQuickItem::setVisible (this=<optimized out>, v=<optimized out>) at items/qquickitem.cpp:5474
#34 0x00007f391ff939f3 in QQuickItem::qt_static_metacall (_o=_o@entry=0x2514330, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=11, _a=_a@entry=0x7ffc16d85b50) at .moc/moc_qquickitem.cpp:878
#35 0x00007f391ff941bb in QQuickItem::qt_metacall (this=0x2514330, _c=QMetaObject::WriteProperty, _id=11, _a=0x7ffc16d85b50) at .moc/moc_qquickitem.cpp:946
#36 0x00007f391fc163a4 in QQmlVMEMetaObject::metaCall (this=0x251a7c0, c=QMetaObject::WriteProperty, _id=12, a=0x7ffc16d85b50) at qml/qqmlvmemetaobject.cpp:971
#37 0x00007f391fc164a7 in QAbstractDynamicMetaObject::metaCall (a=0x7ffc16d85b50, _id=12, c=QMetaObject::WriteProperty, this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/5.5.1/QtCore/private/qobject_p.h:421
#38 QQmlVMEMetaObject::metaCall (this=0x251e080, c=QMetaObject::WriteProperty, _id=12, a=0x7ffc16d85b50) at qml/qqmlvmemetaobject.cpp:969
#39 0x00007f391fc2e5b0 in QQmlPropertyPrivate::write (object=object@entry=0x2514330, property=..., value=..., context=context@entry=0x250cf50, flags=...) at qml/qqmlproperty.cpp:1313
#40 0x00007f391fc300cb in QQmlPropertyPrivate::writeValueProperty (object=object@entry=0x2514330, core=..., value=..., context=context@entry=0x250cf50, flags=...) at qml/qqmlproperty.cpp:1237
#41 0x00007f391fc30b1c in QQmlPropertyPrivate::writeBinding (object=0x2514330, core=..., context=0x250cf50, expression=expression@entry=0x251e520, result=..., isUndefined=isUndefined@entry=false, flags=...) at qml/qqmlproperty.cpp:1597
#42 0x00007f391fc9e8cf in QQmlBinding::update (this=0x251e500, flags=...) at qml/qqmlbinding.cpp:198
#43 0x00007f391fc9ecfe in QQmlBinding::update (this=<optimized out>) at qml/qqmlbinding_p.h:97
#44 QQmlBinding::expressionChanged (e=<optimized out>) at qml/qqmlbinding.cpp:260
#45 0x00007f391fc7abae in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:94
#46 0x00007f391fc1d86c in QQmlData::signalEmitted (object=0x250d200, index=32, a=0x0) at qml/qqmlengine.cpp:768
#47 0x00007f3920de38a0 in QMetaObject::activate (sender=0x250d200, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x0) at kernel/qobject.cpp:3599
#48 0x00007f391fc15375 in QQmlVMEMetaObject::activate (this=this@entry=0x250d410, object=<optimized out>, index=<optimized out>, args=args@entry=0x0) at qml/qqmlvmemetaobject.cpp:1325
#49 0x00007f391fc16ede in QQmlVMEMetaObject::metaCall (this=0x250d410, c=<optimized out>, _id=<optimized out>, a=<optimized out>) at qml/qqmlvmemetaobject.cpp:841
#50 0x00007f391fc164a7 in QAbstractDynamicMetaObject::metaCall (a=0x7ffc16d87b20, _id=44, c=QMetaObject::WriteProperty, this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/5.5.1/QtCore/private/qobject_p.h:421
#51 QQmlVMEMetaObject::metaCall (this=0x251fc80, c=QMetaObject::WriteProperty, _id=44, a=0x7ffc16d87b20) at qml/qqmlvmemetaobject.cpp:969
#52 0x00007f391fbfad7d in QV4::QObjectWrapper::setProperty (object=0x250d200, ctx=0x7f3902c5f178, property=0x7f38fc146758, value=...) at jsruntime/qv4qobjectwrapper.cpp:499
#53 0x00007f391fbfb7ee in QV4::QObjectWrapper::setProperty (this=<optimized out>, ctx=<optimized out>, propertyIndex=<optimized out>, value=...) at jsruntime/qv4qobjectwrapper.cpp:665
#54 0x00007f391fc0ff85 in QV4::Runtime::setQmlQObjectProperty (engine=0x24391e0, object=..., propertyIndex=<optimized out>, value=...) at jsruntime/qv4runtime.cpp:1410
#55 0x00007f390286b4d7 in ?? ()
#56 0x000000000250cf50 in ?? ()
#57 0x00000000024c13a0 in ?? ()
#58 0x0003000000000000 in ?? ()
#59 0x0001000000000001 in ?? ()
#60 0x0000000002590d01 in ?? ()
#61 0x00007f3902c5f108 in ?? ()
#62 0x0000000000000001 in ?? ()
#63 0x00007f3902c5f0f8 in ?? ()
#64 0x00007f3902c5f100 in ?? ()
#65 0x000000000287c180 in ?? ()
#66 0x00000000024391e0 in ?? ()
#67 0x00007f391fbae77a in QV4::SimpleScriptFunction::call (that=<optimized out>, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:565
#68 0x00007f391fc0db91 in QV4::Object::call (d=0x7f3902c5f098, this=<optimized out>) at jsruntime/qv4object_p.h:305
#69 QV4::Runtime::callActivationProperty (engine=0x24391e0, nameIndex=<optimized out>, callData=0x7f3902c5f098) at jsruntime/qv4runtime.cpp:954
#70 0x00007f390286b8f3 in ?? ()
#71 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 360458, bug 355096, bug 353914, bug 353170, bug 353057.

Reported using DrKonqi