Application: muon-discover (2.0.65)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic i686
Distribution: Ubuntu 13.10

-- Information about the crash:
I was looking at the cover programs, the top rated. When I click in something, the software crash.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Muon Discover (muon-discover), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1533740 (LWP 1939))]

Thread 7 (Thread 0xaedb4b40 (LWP 1940)):
#0  0xb7782424 in __kernel_vsyscall ()
#1  0xb259a84b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb5ab99bc in __pthread_cond_wait (cond=0xb364c8d0, mutex=0xb364c8b8) at forward.c:149
#3  0xb3549ef2 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3549f3f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2596d78 in start_thread (arg=0xaedb4b40) at pthread_create.c:311
#6  0xb5aac01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 6 (Thread 0xadf9fb40 (LWP 1941)):
#0  0xb2599c11 in __pthread_mutex_unlock_usercnt (mutex=0xad600558, decr=1) at pthread_mutex_unlock.c:37
#1  0xb5ab9c04 in pthread_mutex_unlock (mutex=0xad600558) at forward.c:194
#2  0xb24fbbe0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb24b811e in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb24b8a4f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb24b8c98 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb5dfc8df in QEventDispatcherGlib::processEvents (this=0xad600468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb5dcb9f3 in QEventLoop::processEvents (this=this@entry=0xadf9f228, flags=...) at kernel/qeventloop.cpp:149
#8  0xb5dcbd19 in QEventLoop::exec (this=this@entry=0xadf9f228, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5cbae3d in QThread::exec (this=this@entry=0x8a53e78) at thread/qthread.cpp:542
#10 0xb5dabe14 in QInotifyFileSystemWatcherEngine::run (this=0x8a53e78) at io/qfilesystemwatcher_inotify.cpp:265
#11 0xb5cbd72f in QThreadPrivate::start (arg=0x8a53e78) at thread/qthread_unix.cpp:338
#12 0xb2596d78 in start_thread (arg=0xadf9fb40) at pthread_create.c:311
#13 0xb5aac01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 5 (Thread 0xa8438b40 (LWP 1942)):
#0  0xb7782424 in __kernel_vsyscall ()
#1  0xb5abf4d2 in clock_gettime (clock_id=1, tp=0xa8437ff8) at ../sysdeps/unix/clock_gettime.c:115
#2  0xb5d183ec in do_gettime (frac=0xa8437ff0, sec=0xa8437fe8) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0xb5dfdfd2 in updateCurrentTime (this=0xa7b02074) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0xa7b02074, tm=...) at kernel/qeventdispatcher_unix.cpp:461
#6  0xb5dfc67b in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa84380ec) at kernel/qeventdispatcher_glib.cpp:136
#7  0xb5dfc70d in timerSourcePrepare (source=0xa7b02040, timeout=0xa84380ec) at kernel/qeventdispatcher_glib.cpp:169
#8  0xb24b8133 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb24b8a4f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb24b8c98 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb5dfc8df in QEventDispatcherGlib::processEvents (this=0xa7b00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0xb5dcb9f3 in QEventLoop::processEvents (this=this@entry=0xa8438258, flags=...) at kernel/qeventloop.cpp:149
#13 0xb5dcbd19 in QEventLoop::exec (this=this@entry=0xa8438258, flags=...) at kernel/qeventloop.cpp:204
#14 0xb5cbae3d in QThread::exec (this=this@entry=0x8fa9880) at thread/qthread.cpp:542
#15 0xb5cbaf8b in QThread::run (this=0x8fa9880) at thread/qthread.cpp:609
#16 0xb5cbd72f in QThreadPrivate::start (arg=0x8fa9880) at thread/qthread_unix.cpp:338
#17 0xb2596d78 in start_thread (arg=0xa8438b40) at pthread_create.c:311
#18 0xb5aac01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 4 (Thread 0xa78a4b40 (LWP 1943)):
#0  0xb24b80e8 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb24b8a4f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb24b8c98 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb5dfc8df in QEventDispatcherGlib::processEvents (this=0xa6f00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0xb5dcb9f3 in QEventLoop::processEvents (this=this@entry=0xa78a4258, flags=...) at kernel/qeventloop.cpp:149
#5  0xb5dcbd19 in QEventLoop::exec (this=this@entry=0xa78a4258, flags=...) at kernel/qeventloop.cpp:204
#6  0xb5cbae3d in QThread::exec (this=this@entry=0x900f670) at thread/qthread.cpp:542
#7  0xb5cbaf8b in QThread::run (this=0x900f670) at thread/qthread.cpp:609
#8  0xb5cbd72f in QThreadPrivate::start (arg=0x900f670) at thread/qthread_unix.cpp:338
#9  0xb2596d78 in start_thread (arg=0xa78a4b40) at pthread_create.c:311
#10 0xb5aac01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 3 (Thread 0xa0affb40 (LWP 2036)):
#0  0xb2599c34 in __pthread_mutex_unlock_usercnt (mutex=0xa7fc260, decr=1) at pthread_mutex_unlock.c:52
#1  0xb5ab9c04 in pthread_mutex_unlock (mutex=0xa7fc260) at forward.c:194
#2  0xb24fbbe0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb24b8ca2 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb5dfc8df in QEventDispatcherGlib::processEvents (this=0xa6bbce8, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0xb5dcb9f3 in QEventLoop::processEvents (this=this@entry=0xa0aff248, flags=...) at kernel/qeventloop.cpp:149
#6  0xb5dcbd19 in QEventLoop::exec (this=this@entry=0xa0aff248, flags=...) at kernel/qeventloop.cpp:204
#7  0xb5cbae3d in QThread::exec (this=this@entry=0xa7f7458) at thread/qthread.cpp:542
#8  0xb7176aee in QDeclarativePixmapReader::run (this=0xa7f7458) at util/qdeclarativepixmapcache.cpp:576
#9  0xb5cbd72f in QThreadPrivate::start (arg=0xa7f7458) at thread/qthread_unix.cpp:338
#10 0xb2596d78 in start_thread (arg=0xa0affb40) at pthread_create.c:311
#11 0xb5aac01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 2 (Thread 0xa02feb40 (LWP 2037)):
#0  0xb77951c2 in ___tls_get_addr (ti=<optimized out>) at dl-tls.c:781
#1  0xb5cbc3b3 in get_thread_data () at thread/qthread_unix.cpp:182
#2  QThreadData::current () at thread/qthread_unix.cpp:208
#3  0xb5dfc7e9 in postEventSourcePrepare (s=s@entry=0xa6f07da8, timeout=timeout@entry=0x0) at kernel/qeventdispatcher_glib.cpp:256
#4  0xb5dfc857 in postEventSourceCheck (source=0xa6f07da8) at kernel/qeventdispatcher_glib.cpp:272
#5  0xb24b857f in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb24b8aea in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb24b8c98 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb5dfc8df in QEventDispatcherGlib::processEvents (this=0xa6f07d98, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#9  0xb5dcb9f3 in QEventLoop::processEvents (this=this@entry=0xa02fe258, flags=...) at kernel/qeventloop.cpp:149
#10 0xb5dcbd19 in QEventLoop::exec (this=this@entry=0xa02fe258, flags=...) at kernel/qeventloop.cpp:204
#11 0xb5cbae3d in QThread::exec (this=this@entry=0xa7f54f0) at thread/qthread.cpp:542
#12 0xb5cbaf8b in QThread::run (this=0xa7f54f0) at thread/qthread.cpp:609
#13 0xb5cbd72f in QThreadPrivate::start (arg=0xa7f54f0) at thread/qthread_unix.cpp:338
#14 0xb2596d78 in start_thread (arg=0xa02feb40) at pthread_create.c:311
#15 0xb5aac01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 1 (Thread 0xb1533740 (LWP 1939)):
[KCrash Handler]
#7  0xb359e1c4 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#8  0xb35a7b96 in QScriptValue::call(QScriptValue const&, QList<QScriptValue> const&) () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#9  0xb723be8a in QDeclarativeQtScriptExpression::eval (this=this@entry=0xb2c004c, secondaryScope=secondaryScope@entry=0xb4cc110, isUndefined=isUndefined@entry=0x0) at qml/qdeclarativeexpression.cpp:518
#10 0xb723e535 in QDeclarativeQtScriptExpression::scriptValue (this=this@entry=0xb2c004c, secondaryScope=0xb4cc110, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:470
#11 0xb723e82a in QDeclarativeExpressionPrivate::scriptValue (this=0xb2c0000, secondaryScope=secondaryScope@entry=0xb4cc110, isUndefined=isUndefined@entry=0x0) at qml/qdeclarativeexpression.cpp:653
#12 0xb723e96f in QDeclarativeExpressionPrivate::value (this=0xb2c0000, secondaryScope=0xb4cc110, isUndefined=isUndefined@entry=0x0) at qml/qdeclarativeexpression.cpp:667
#13 0xb727987f in QDeclarativeBoundSignal::qt_metacall (this=0xb327168, c=QMetaObject::InvokeMetaMethod, id=5, a=0xbf8cb158) at qml/qdeclarativeboundsignal.cpp:199
#14 0xb5dd3e35 in QMetaObject::metacall (object=object@entry=0xb327168, cl=cl@entry=QMetaObject::InvokeMetaMethod, idx=5, argv=0xbf8cb158) at kernel/qmetaobject.cpp:245
#15 0xb5de22dd in QMetaObject::activate (sender=sender@entry=0xb4ab6f0, m=m@entry=0xb7435e1c <QDeclarativeMouseArea::staticMetaObject>, local_signal_index=local_signal_index@entry=11, argv=argv@entry=0xbf8cb158) at kernel/qobject.cpp:3558
#16 0xb7340dc5 in QDeclarativeMouseArea::clicked (this=this@entry=0xb4ab6f0, _t1=_t1@entry=0xbf8cb1a0) at .moc/release-shared/moc_qdeclarativemousearea_p.cpp:523
#17 0xb71d88de in QDeclarativeMouseArea::setPressed (this=this@entry=0xb4ab6f0, p=p@entry=false) at graphicsitems/qdeclarativemousearea.cpp:936
#18 0xb71d9a84 in QDeclarativeMouseArea::mouseReleaseEvent (this=0xb4ab6f0, event=0xbf8cb6f0) at graphicsitems/qdeclarativemousearea.cpp:586
#19 0xb6974222 in QGraphicsItem::sceneEvent (this=this@entry=0xb4ab6f8, event=event@entry=0xbf8cb6f0) at graphicsview/qgraphicsitem.cpp:6742
#20 0xb71cb786 in QDeclarativeItem::sceneEvent (this=this@entry=0xb4ab6f0, event=event@entry=0xbf8cb6f0) at graphicsitems/qdeclarativeitem.cpp:3049
#21 0xb71da345 in QDeclarativeMouseArea::sceneEvent (this=0xb4ab6f0, event=0xbf8cb6f0) at graphicsitems/qdeclarativemousearea.cpp:681
#22 0xb699db76 in QGraphicsScenePrivate::sendEvent (this=0x8a51ac8, item=0xb4ab6f8, event=0xbf8cb6f0) at graphicsview/qgraphicsscene.cpp:1221
#23 0xb699e0b6 in QGraphicsScenePrivate::sendMouseEvent (this=0x8a51ac8, mouseEvent=0xbf8cb6f0) at graphicsview/qgraphicsscene.cpp:1295
#24 0xb69a61ae in QGraphicsScene::mouseReleaseEvent (this=this@entry=0x8a504c8, mouseEvent=mouseEvent@entry=0xbf8cb6f0) at graphicsview/qgraphicsscene.cpp:4128
#25 0xb71284ff in QDeclarativeScene::mouseReleaseEvent (this=0x8a504c8, e=0xbf8cb6f0) at util/qdeclarativeview.cpp:127
#26 0xb69b2f2f in QGraphicsScene::event (this=0x8a504c8, event=0xbf8cb6f0) at graphicsview/qgraphicsscene.cpp:3458
#27 0xb6329744 in QApplicationPrivate::notify_helper (this=0x8902058, receiver=0x8a504c8, e=0xbf8cb6f0) at kernel/qapplication.cpp:4567
#28 0xb6330223 in QApplication::notify (this=0xbf8cc170, receiver=receiver@entry=0x8a504c8, e=e@entry=0xbf8cb6f0) at kernel/qapplication.cpp:4353
#29 0xb6e76ff4 in KApplication::notify (this=0xbf8cc170, receiver=0x8a504c8, event=0xbf8cb6f0) at ../../kdeui/kernel/kapplication.cpp:311
#30 0xb5dcceda in QCoreApplication::notifyInternal (this=0xbf8cc170, receiver=receiver@entry=0x8a504c8, event=event@entry=0xbf8cb6f0) at kernel/qcoreapplication.cpp:946
#31 0xb6327bcd in sendSpontaneousEvent (event=0xbf8cb6f0, receiver=0x8a504c8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#32 qt_sendSpontaneousEvent (receiver=0x8a504c8, event=event@entry=0xbf8cb6f0) at kernel/qapplication.cpp:5565
#33 0xb69cca72 in QGraphicsView::mouseReleaseEvent (this=0x8a1bbf0, event=0xbf8cbbe4) at graphicsview/qgraphicsview.cpp:3338
#34 0xb63831aa in QWidget::event (this=this@entry=0x8a1bbf0, event=event@entry=0xbf8cbbe4) at kernel/qwidget.cpp:8375
#35 0xb6787fcc in QFrame::event (this=this@entry=0x8a1bbf0, e=e@entry=0xbf8cbbe4) at widgets/qframe.cpp:557
#36 0xb6816318 in QAbstractScrollArea::viewportEvent (this=this@entry=0x8a1bbf0, e=e@entry=0xbf8cbbe4) at widgets/qabstractscrollarea.cpp:1043
#37 0xb69cd627 in QGraphicsView::viewportEvent (this=<optimized out>, event=<optimized out>) at graphicsview/qgraphicsview.cpp:2866
#38 0xb6816596 in viewportEvent (event=0xbf8cbbe4, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#39 QAbstractScrollAreaFilter::eventFilter (this=0x8a1cf88, o=0x8a1e6e8, e=0xbf8cbbe4) at widgets/qabstractscrollarea_p.h:116
#40 0xb5dcd04e in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x8902058, receiver=receiver@entry=0x8a1e6e8, event=event@entry=0xbf8cbbe4) at kernel/qcoreapplication.cpp:1056
#41 0xb6329721 in QApplicationPrivate::notify_helper (this=0x8902058, receiver=receiver@entry=0x8a1e6e8, e=0xbf8cbbe4) at kernel/qapplication.cpp:4563
#42 0xb6331df8 in QApplication::notify (this=0xbf8cc170, receiver=receiver@entry=0x8a1e6e8, e=e@entry=0xbf8cbbe4) at kernel/qapplication.cpp:4110
#43 0xb6e76ff4 in KApplication::notify (this=0xbf8cc170, receiver=0x8a1e6e8, event=0xbf8cbbe4) at ../../kdeui/kernel/kapplication.cpp:311
#44 0xb5dcceda in QCoreApplication::notifyInternal (this=0xbf8cc170, receiver=receiver@entry=0x8a1e6e8, event=event@entry=0xbf8cbbe4) at kernel/qcoreapplication.cpp:946
#45 0xb632faa3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#46 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x8a1e6e8, event=0xbf8cbbe4, alienWidget=0x8a1e6e8, nativeWidget=0x8a1bbf0, buttonDown=buttonDown@entry=0xb6c9ecc4 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#47 0xb63b34e8 in QETWidget::translateMouseEvent (this=0x8a1bbf0, event=event@entry=0xbf8cbe0c) at kernel/qapplication_x11.cpp:4631
#48 0xb63b2c05 in QApplication::x11ProcessEvent (this=0xbf8cc170, event=event@entry=0xbf8cbe0c) at kernel/qapplication_x11.cpp:3624
#49 0xb63de274 in x11EventSourceDispatch (s=0x88ff310, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#50 0xb24b882e in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#51 0xb24b8bd8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#52 0xb24b8c98 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#53 0xb5dfc8bf in QEventDispatcherGlib::processEvents (this=this@entry=0x88cbec0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#54 0xb63de32e in QGuiEventDispatcherGlib::processEvents (this=0x88cbec0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#55 0xb5dcb9f3 in QEventLoop::processEvents (this=this@entry=0xbf8cc0c8, flags=...) at kernel/qeventloop.cpp:149
#56 0xb5dcbd19 in QEventLoop::exec (this=this@entry=0xbf8cc0c8, flags=...) at kernel/qeventloop.cpp:204
#57 0xb5dd189e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#58 0xb6327974 in QApplication::exec () at kernel/qapplication.cpp:3828
#59 0x08050dbb in main (argc=1, argv=0xbf8cc254) at /build/buildd/muon-2.0.65+git20131008/discover/main.cpp:86

Possible duplicates by query: bug 326229, bug 326160, bug 325337, bug 323152.

Reported using DrKonqi