Bug 277359

Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

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

I was sorting out my music library in Amarok when it started behaving weirdly (track information window didn't show up after repeated attempts). I figured the problem would fix itself if I restarted Amarok, however, once I quit Amarok (normally, no killing involved), Plasma Desktop _immediately_ went belly up with a segmentation fault.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb60ad720 (LWP 1426))]

Thread 4 (Thread 0xb3e2eb70 (LWP 1429)):
#0  0x023ac7a4 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x009a4656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x03740fc2 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03741e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x03742524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0140c577 in QEventDispatcherGlib::processEvents (this=0x996a850, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x013de289 in QEventLoop::processEvents (this=0xb3e2e280, flags=...) at kernel/qeventloop.cpp:149
#7  0x013de522 in QEventLoop::exec (this=0xb3e2e280, flags=...) at kernel/qeventloop.cpp:201
#8  0x012e82a0 in QThread::exec (this=0x96d8f60) at thread/qthread.cpp:492
#9  0x013bffdb in QInotifyFileSystemWatcherEngine::run (this=0x96d8f60) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x012eada2 in QThreadPrivate::start (arg=0x96d8f60) at thread/qthread_unix.cpp:320
#11 0x023a8e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0099673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xace6cb70 (LWP 1431)):
#0  0x07062d41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x01340dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x0140d4f2 in updateCurrentTime (this=0xb3501eb4, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0xb3501eb4, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x0140bd32 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xace6c0cc) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0140bdcd in timerSourcePrepare (source=0xb3501e80, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x03740fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x03741e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x03742524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x0140c577 in QEventDispatcherGlib::processEvents (this=0x999cf00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x013de289 in QEventLoop::processEvents (this=0xace6c280, flags=...) at kernel/qeventloop.cpp:149
#12 0x013de522 in QEventLoop::exec (this=0xace6c280, flags=...) at kernel/qeventloop.cpp:201
#13 0x012e82a0 in QThread::exec (this=0x99994b8) at thread/qthread.cpp:492
#14 0x013bffdb in QInotifyFileSystemWatcherEngine::run (this=0x99994b8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x012eada2 in QThreadPrivate::start (arg=0x99994b8) at thread/qthread_unix.cpp:320
#16 0x023a8e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x0099673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xabe6ab70 (LWP 1436)):
#0  0x037414f9 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x0374203a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x0374292b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x038e9304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#4  0x0376b2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x023a8e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x0099673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb60ad720 (LWP 1426)):
[KCrash Handler]
#7  0x01062454 in QString (this=0x9ec0061, group=0, state=0) at /usr/include/qt4/QtCore/qstring.h:728
#8  KIconEffect::fingerprint (this=0x9ec0061, group=0, state=0) at ../../kdeui/icons/kiconeffect.cpp:169
#9  0x01068352 in KIconLoaderPrivate::makeCacheKey (this=0x9ec004d, name=..., group=KIconLoader::Desktop, overlays=..., size=24, state=0) at ../../kdeui/icons/kiconloader.cpp:782
#10 0x0106f398 in KIconLoader::loadIcon (this=0xa010b80, _name=..., group=KIconLoader::Desktop, size=24, state=0, overlays=..., path_store=0x0, canReturnNull=false) at ../../kdeui/icons/kiconloader.cpp:1226
#11 0x01066d76 in KIconEngine::pixmap (this=0xa16aa88, size=..., mode=QIcon::Normal, state=QIcon::Off) at ../../kdeui/icons/kiconengine.cpp:93
#12 0x016ffca2 in QIcon::pixmap (this=0xa25bd2c, size=..., mode=QIcon::Normal, state=QIcon::Off) at image/qicon.cpp:676
#13 0x005b3969 in Plasma::IconWidgetPrivate::decoration (this=0xa25bc88, option=0x95c5af8, useHoverEffect=false, usePressedEffect=false) at ../../plasma/widgets/iconwidget.cpp:812
#14 0x005ba21d in Plasma::IconWidget::paint (this=0x9f2bd48, painter=0xbfa0b2bc, option=0x95c5af8, widget=0x0) at ../../plasma/widgets/iconwidget.cpp:1128
#15 0x02f1a0dd in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#16 0x01ca89ec in _q_paintItem (item=<value optimized out>, painter=0x95c5af8, option=0x95c5af8, widget=0x0, useWindowOpacity=false, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4314
#17 0x01ca8cf2 in _q_paintIntoCache (pix=0xbfa0b78c, item=0x9f2bd50, pixmapExposed=..., itemToPixmap=..., renderHints=..., option=0x95c5af8, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4352
#18 0x01cbca00 in QGraphicsScenePrivate::drawItemHelper (this=0x95c59a8, item=0x9f2bd50, painter=0xbfa0cf74, option=0x95c5af8, widget=0x9dc8378, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4690
#19 0x01cbd6c2 in QGraphicsScenePrivate::draw (this=0x95c59a8, item=0x9f2bd50, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, transformPtr=0xbfa0bb70, exposedRegion=0x9940c40, widget=0x9dc8378, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4962
#20 0x01cbe402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x95c59a8, item=0x9f2bd50, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, exposedRegion=0x9940c40, widget=0x9dc8378, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#21 0x01cbd4ec in QGraphicsScenePrivate::draw (this=0x95c59a8, item=0x972c5c0, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, transformPtr=0xbfa0c010, exposedRegion=0x9940c40, widget=0x9dc8378, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#22 0x01cbe402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x95c59a8, item=0x972c5c0, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, exposedRegion=0x9940c40, widget=0x9dc8378, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#23 0x01cbd4ec in QGraphicsScenePrivate::draw (this=0x95c59a8, item=0x972e130, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, transformPtr=0xbfa0c4b0, exposedRegion=0x9940c40, widget=0x9dc8378, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#24 0x01cbe402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x95c59a8, item=0x972e130, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, exposedRegion=0x9940c40, widget=0x9dc8378, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#25 0x01cbd4ec in QGraphicsScenePrivate::draw (this=0x95c59a8, item=0x9617b68, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, transformPtr=0xbfa0c950, exposedRegion=0x9940c40, widget=0x9dc8378, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#26 0x01cbe402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x95c59a8, item=0x9617b68, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, exposedRegion=0x9940c40, widget=0x9dc8378, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#27 0x01cbec06 in QGraphicsScenePrivate::drawItems (this=0x95c59a8, painter=0xbfa0cf74, viewTransform=0xbfa0cd5c, exposedRegion=0x9940c40, widget=0x9dc8378) at graphicsview/qgraphicsscene.cpp:4735
#28 0x01cddea1 in QGraphicsView::paintEvent (this=0x9e1a968, event=0xbfa0d684) at graphicsview/qgraphicsview.cpp:3469
#29 0x00148484 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#30 0x016a218e in QWidget::event (this=0x9e1a968, event=0xbfa0d684) at kernel/qwidget.cpp:8405
#31 0x01a93f63 in QFrame::event (this=0x9e1a968, e=0xbfa0d684) at widgets/qframe.cpp:557
#32 0x01b225d2 in QAbstractScrollArea::viewportEvent (this=0x9e1a968, e=0xbfa0d684) at widgets/qabstractscrollarea.cpp:1043
#33 0x01cdf36f in QGraphicsView::viewportEvent (this=0x9e1a968, event=0xbfa0d684) at graphicsview/qgraphicsview.cpp:2864
#34 0x01b24ed5 in viewportEvent (this=0x9cea1d8, o=0x9dc8378, e=0xbfa0d684) at widgets/qabstractscrollarea_p.h:100
#35 QAbstractScrollAreaFilter::eventFilter (this=0x9cea1d8, o=0x9dc8378, e=0xbfa0d684) at widgets/qabstractscrollarea_p.h:116
#36 0x013df25a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x954f470, receiver=0x9dc8378, event=0xbfa0d684) at kernel/qcoreapplication.cpp:846
#37 0x01649d00 in QApplicationPrivate::notify_helper (this=0x954f470, receiver=0x9dc8378, e=0xbfa0d684) at kernel/qapplication.cpp:4458
#38 0x0164e97b in QApplication::notify (this=0x953fc50, receiver=0x9dc8378, e=0xbfa0d684) at kernel/qapplication.cpp:4427
#39 0x010c13ca in KApplication::notify (this=0x953fc50, receiver=0x9dc8378, event=0xbfa0d684) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x013df0bb in QCoreApplication::notifyInternal (this=0x953fc50, receiver=0x9dc8378, event=0xbfa0d684) at kernel/qcoreapplication.cpp:731
#41 0x0169ef0c in sendSpontaneousEvent (this=0x9c5cbb0, pdev=0x9d586ac, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9bc68e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#42 QWidgetPrivate::drawWidget (this=0x9c5cbb0, pdev=0x9d586ac, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9bc68e0) at kernel/qwidget.cpp:5492
#43 0x0169fb7c in QWidgetPrivate::paintSiblingsRecursive (this=0x99408f0, pdev=0x9d586ac, siblings=..., index=<value optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9bc68e0) at kernel/qwidget.cpp:5699
#44 0x0169fa42 in QWidgetPrivate::paintSiblingsRecursive (this=0x99408f0, pdev=0x9d586ac, siblings=..., index=4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9bc68e0) at kernel/qwidget.cpp:5686
#45 0x0169ec80 in QWidgetPrivate::drawWidget (this=0x99408f0, pdev=0x9d586ac, rgn=..., offset=..., flags=5, sharedPainter=0x0, backingStore=0x9bc68e0) at kernel/qwidget.cpp:5545
#46 0x0187a908 in QWidgetBackingStore::sync (this=0x9bc68e0) at painting/qbackingstore.cpp:1333
#47 0x01694843 in QWidgetPrivate::syncBackingStore (this=0x99408f0) at kernel/qwidget.cpp:1842
#48 0x016a27e5 in QWidget::event (this=0x9e1a968, event=0xa010b80) at kernel/qwidget.cpp:8552
#49 0x01a93f63 in QFrame::event (this=0x9e1a968, e=0xa010b80) at widgets/qframe.cpp:557
#50 0x01b2433f in QAbstractScrollArea::event (this=0x9e1a968, e=0xa010b80) at widgets/qabstractscrollarea.cpp:996
#51 0x01cd2686 in QGraphicsView::event (this=0x9e1a968, event=0xa010b80) at graphicsview/qgraphicsview.cpp:2741
#52 0x001487c3 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#53 0x01649d24 in QApplicationPrivate::notify_helper (this=0x954f470, receiver=0x9e1a968, e=0xa010b80) at kernel/qapplication.cpp:4462
#54 0x0164e97b in QApplication::notify (this=0x953fc50, receiver=0x9e1a968, e=0xa010b80) at kernel/qapplication.cpp:4427
#55 0x010c13ca in KApplication::notify (this=0x953fc50, receiver=0x9e1a968, event=0xa010b80) at ../../kdeui/kernel/kapplication.cpp:311
#56 0x013df0bb in QCoreApplication::notifyInternal (this=0x953fc50, receiver=0x9e1a968, event=0xa010b80) at kernel/qcoreapplication.cpp:731
#57 0x013e2c79 in sendEvent (receiver=0x9e1a968, event_type=77, data=0x94d5f50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#58 QCoreApplicationPrivate::sendPostedEvents (receiver=0x9e1a968, event_type=77, data=0x94d5f50) at kernel/qcoreapplication.cpp:1372
#59 0x013e2e0d in QCoreApplication::sendPostedEvents (receiver=0x9e1a968, event_type=77) at kernel/qcoreapplication.cpp:1265
#60 0x01cb51b6 in dispatchPendingUpdateRequests (this=0x95c59a8) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:189
#61 QGraphicsScenePrivate::_q_processDirtyItems (this=0x95c59a8) at graphicsview/qgraphicsscene.cpp:510
#62 0x01cb5596 in QGraphicsScene::qt_metacall (this=0x9550530, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x9d98908) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#63 0x004f6a9a in Plasma::Corona::qt_metacall (this=0x9550530, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x9d98908) at ./corona.moc:109
#64 0x0013b20a in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#65 0x013e56ba in QMetaObject::metacall (object=0x9550530, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0x9d98908) at kernel/qmetaobject.cpp:237
#66 0x013efe16 in QMetaCallEvent::placeMetaCall (this=0xa22f130, object=0x9550530) at kernel/qobject.cpp:535
#67 0x013f43b7 in QObject::event (this=0x9550530, e=0xa22f130) at kernel/qobject.cpp:1226
#68 0x01cc23b4 in QGraphicsScene::event (this=0x9550530, event=0xa22f130) at graphicsview/qgraphicsscene.cpp:3544
#69 0x01649d24 in QApplicationPrivate::notify_helper (this=0x954f470, receiver=0x9550530, e=0xa22f130) at kernel/qapplication.cpp:4462
#70 0x0164e8ce in QApplication::notify (this=0x953fc50, receiver=0x9550530, e=0xa22f130) at kernel/qapplication.cpp:3862
#71 0x010c13ca in KApplication::notify (this=0x953fc50, receiver=0x9550530, event=0xa22f130) at ../../kdeui/kernel/kapplication.cpp:311
#72 0x013df0bb in QCoreApplication::notifyInternal (this=0x953fc50, receiver=0x9550530, event=0xa22f130) at kernel/qcoreapplication.cpp:731
#73 0x013e2c79 in sendEvent (receiver=0x0, event_type=0, data=0x94d5f50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#74 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x94d5f50) at kernel/qcoreapplication.cpp:1372
#75 0x013e2e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#76 0x0140c3c4 in sendPostedEvents (s=0x9549cc8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#77 postEventSourceDispatch (s=0x9549cc8) at kernel/qeventdispatcher_glib.cpp:277
#78 0x03741aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#79 0x03742270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#80 0x03742524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#81 0x0140c53c in QEventDispatcherGlib::processEvents (this=0x94d5aa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#82 0x016fd775 in QGuiEventDispatcherGlib::processEvents (this=0x94d5aa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#83 0x013de289 in QEventLoop::processEvents (this=0xbfa0efb4, flags=...) at kernel/qeventloop.cpp:149
#84 0x013de522 in QEventLoop::exec (this=0xbfa0efb4, flags=...) at kernel/qeventloop.cpp:201
#85 0x013e2ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#86 0x016478e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#87 0x001425a5 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#88 0x080485cb in _start ()

This bug may be a duplicate of or related to bug 277093.

Possible duplicates by query: bug 277342, bug 277264, bug 277129, bug 277093, bug 276408.

Reported using DrKonqi