Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-10-generic i686
Distribution: Ubuntu 11.04

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

closing Amarok Music Player and the plasma shell crashed.  it happens occasionally.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb78bead0 (LWP 1252))]

Thread 3 (Thread 0xb56a4b70 (LWP 1253)):
#0  0x001ee5e1 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#1  0x01d15752 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x01d1603a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x01d16524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x025c0577 in QEventDispatcherGlib::processEvents (this=0x8954300, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x02592289 in QEventLoop::processEvents (this=0xb56a4280, flags=...) at kernel/qeventloop.cpp:149
#6  0x02592522 in QEventLoop::exec (this=0xb56a4280, flags=...) at kernel/qeventloop.cpp:201
#7  0x0249c2a0 in QThread::exec (this=0x87afd28) at thread/qthread.cpp:492
#8  0x02573fdb in QInotifyFileSystemWatcherEngine::run (this=0x87afd28) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x0249eda2 in QThreadPrivate::start (arg=0x87afd28) at thread/qthread_unix.cpp:320
#10 0x01cc1e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xae65ab70 (LWP 1255)):
#0  0x001ee651 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#1  0x01d15648 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x01d1603a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x01d16524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x025c0577 in QEventDispatcherGlib::processEvents (this=0x88bac38, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x02592289 in QEventLoop::processEvents (this=0xae65a280, flags=...) at kernel/qeventloop.cpp:149
#6  0x02592522 in QEventLoop::exec (this=0xae65a280, flags=...) at kernel/qeventloop.cpp:201
#7  0x0249c2a0 in QThread::exec (this=0x88b9538) at thread/qthread.cpp:492
#8  0x02573fdb in QInotifyFileSystemWatcherEngine::run (this=0x88b9538) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x0249eda2 in QThreadPrivate::start (arg=0x88b9538) at thread/qthread_unix.cpp:320
#10 0x01cc1e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb78bead0 (LWP 1252)):
[KCrash Handler]
#7  0x01170454 in QString (this=0x92c0061, group=0, state=0) at /usr/include/qt4/QtCore/qstring.h:728
#8  KIconEffect::fingerprint (this=0x92c0061, group=0, state=0) at ../../kdeui/icons/kiconeffect.cpp:169
#9  0x01176352 in KIconLoaderPrivate::makeCacheKey (this=0x92c004d, name=..., group=KIconLoader::Desktop, overlays=..., size=24, state=0) at ../../kdeui/icons/kiconloader.cpp:782
#10 0x0117d398 in KIconLoader::loadIcon (this=0x9264dc8, _name=..., group=KIconLoader::Desktop, size=24, state=0, overlays=..., path_store=0x0, canReturnNull=false) at ../../kdeui/icons/kiconloader.cpp:1226
#11 0x01174d76 in KIconEngine::pixmap (this=0x93661e8, size=..., mode=QIcon::Normal, state=QIcon::Off) at ../../kdeui/icons/kiconengine.cpp:93
#12 0x03929712 in QIcon::pixmap (this=0x9263de4, size=..., mode=QIcon::Normal, state=QIcon::Off) at image/qicon.cpp:676
#13 0x009dd969 in Plasma::IconWidgetPrivate::decoration (this=0x9263d40, option=0x859ca70, useHoverEffect=false, usePressedEffect=false) at ../../plasma/widgets/iconwidget.cpp:812
#14 0x009e421d in Plasma::IconWidget::paint (this=0x9265200, painter=0xbfd5ce6c, option=0x859ca70, widget=0x0) at ../../plasma/widgets/iconwidget.cpp:1128
#15 0x030880dd in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#16 0x03ed247c in _q_paintItem (item=<value optimized out>, painter=0x859ca70, option=0x859ca70, widget=0x0, useWindowOpacity=false, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4314
#17 0x03ed2782 in _q_paintIntoCache (pix=0xbfd5d33c, item=0x9265208, pixmapExposed=..., itemToPixmap=..., renderHints=..., option=0x859ca70, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4352
#18 0x03ee6490 in QGraphicsScenePrivate::drawItemHelper (this=0x859c920, item=0x9265208, painter=0xbfd5eb24, option=0x859ca70, widget=0x8e35140, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4690
#19 0x03ee7152 in QGraphicsScenePrivate::draw (this=0x859c920, item=0x9265208, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, transformPtr=0xbfd5d720, exposedRegion=0x8fe2818, widget=0x8e35140, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4962
#20 0x03ee7e92 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x859c920, item=0x9265208, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, exposedRegion=0x8fe2818, widget=0x8e35140, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#21 0x03ee6f7c in QGraphicsScenePrivate::draw (this=0x859c920, item=0x8703e68, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, transformPtr=0xbfd5dbc0, exposedRegion=0x8fe2818, widget=0x8e35140, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#22 0x03ee7e92 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x859c920, item=0x8703e68, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, exposedRegion=0x8fe2818, widget=0x8e35140, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#23 0x03ee6f7c in QGraphicsScenePrivate::draw (this=0x859c920, item=0x86d2d98, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, transformPtr=0xbfd5e060, exposedRegion=0x8fe2818, widget=0x8e35140, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#24 0x03ee7e92 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x859c920, item=0x86d2d98, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, exposedRegion=0x8fe2818, widget=0x8e35140, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#25 0x03ee6f7c in QGraphicsScenePrivate::draw (this=0x859c920, item=0x86256f8, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, transformPtr=0xbfd5e500, exposedRegion=0x8fe2818, widget=0x8e35140, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#26 0x03ee7e92 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x859c920, item=0x86256f8, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, exposedRegion=0x8fe2818, widget=0x8e35140, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#27 0x03ee8696 in QGraphicsScenePrivate::drawItems (this=0x859c920, painter=0xbfd5eb24, viewTransform=0xbfd5e90c, exposedRegion=0x8fe2818, widget=0x8e35140) at graphicsview/qgraphicsscene.cpp:4735
#28 0x03f07931 in QGraphicsView::paintEvent (this=0x8fe0f30, event=0xbfd5f234) at graphicsview/qgraphicsview.cpp:3469
#29 0x002ae484 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#30 0x038c918e in QWidget::event (this=0x8fe0f30, event=0xbfd5f234) at kernel/qwidget.cpp:8405
#31 0x03cbd9f3 in QFrame::event (this=0x8fe0f30, e=0xbfd5f234) at widgets/qframe.cpp:557
#32 0x03d4c062 in QAbstractScrollArea::viewportEvent (this=0x8fe0f30, e=0xbfd5f234) at widgets/qabstractscrollarea.cpp:1043
#33 0x03f08dff in QGraphicsView::viewportEvent (this=0x8fe0f30, event=0xbfd5f234) at graphicsview/qgraphicsview.cpp:2864
#34 0x03d4e965 in viewportEvent (this=0x8fb21d0, o=0x8e35140, e=0xbfd5f234) at widgets/qabstractscrollarea_p.h:100
#35 QAbstractScrollAreaFilter::eventFilter (this=0x8fb21d0, o=0x8e35140, e=0xbfd5f234) at widgets/qabstractscrollarea_p.h:116
#36 0x0259325a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x84f4408, receiver=0x8e35140, event=0xbfd5f234) at kernel/qcoreapplication.cpp:846
#37 0x03870d00 in QApplicationPrivate::notify_helper (this=0x84f4408, receiver=0x8e35140, e=0xbfd5f234) at kernel/qapplication.cpp:4458
#38 0x0387597b in QApplication::notify (this=0x84eb760, receiver=0x8e35140, e=0xbfd5f234) at kernel/qapplication.cpp:4427
#39 0x011cf3ca in KApplication::notify (this=0x84eb760, receiver=0x8e35140, event=0xbfd5f234) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x025930bb in QCoreApplication::notifyInternal (this=0x84eb760, receiver=0x8e35140, event=0xbfd5f234) at kernel/qcoreapplication.cpp:731
#41 0x038c5f0c in sendSpontaneousEvent (this=0x89ecab0, pdev=0x8e45f5c, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x8d00f60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#42 QWidgetPrivate::drawWidget (this=0x89ecab0, pdev=0x8e45f5c, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x8d00f60) at kernel/qwidget.cpp:5492
#43 0x038c6b7c in QWidgetPrivate::paintSiblingsRecursive (this=0x8fe24c8, pdev=0x8e45f5c, siblings=..., index=<value optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x8d00f60) at kernel/qwidget.cpp:5699
#44 0x038c6a42 in QWidgetPrivate::paintSiblingsRecursive (this=0x8fe24c8, pdev=0x8e45f5c, siblings=..., index=4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x8d00f60) at kernel/qwidget.cpp:5686
#45 0x038c5c80 in QWidgetPrivate::drawWidget (this=0x8fe24c8, pdev=0x8e45f5c, rgn=..., offset=..., flags=5, sharedPainter=0x0, backingStore=0x8d00f60) at kernel/qwidget.cpp:5545
#46 0x03aa4398 in QWidgetBackingStore::sync (this=0x8d00f60) at painting/qbackingstore.cpp:1333
#47 0x038bb843 in QWidgetPrivate::syncBackingStore (this=0x8fe24c8) at kernel/qwidget.cpp:1842
#48 0x038c97e5 in QWidget::event (this=0x8fe0f30, event=0x9264dc8) at kernel/qwidget.cpp:8552
#49 0x03cbd9f3 in QFrame::event (this=0x8fe0f30, e=0x9264dc8) at widgets/qframe.cpp:557
#50 0x03d4ddcf in QAbstractScrollArea::event (this=0x8fe0f30, e=0x9264dc8) at widgets/qabstractscrollarea.cpp:996
#51 0x03efc116 in QGraphicsView::event (this=0x8fe0f30, event=0x9264dc8) at graphicsview/qgraphicsview.cpp:2741
#52 0x002ae7c3 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#53 0x03870d24 in QApplicationPrivate::notify_helper (this=0x84f4408, receiver=0x8fe0f30, e=0x9264dc8) at kernel/qapplication.cpp:4462
#54 0x0387597b in QApplication::notify (this=0x84eb760, receiver=0x8fe0f30, e=0x9264dc8) at kernel/qapplication.cpp:4427
#55 0x011cf3ca in KApplication::notify (this=0x84eb760, receiver=0x8fe0f30, event=0x9264dc8) at ../../kdeui/kernel/kapplication.cpp:311
#56 0x025930bb in QCoreApplication::notifyInternal (this=0x84eb760, receiver=0x8fe0f30, event=0x9264dc8) at kernel/qcoreapplication.cpp:731
#57 0x02596c79 in sendEvent (receiver=0x8fe0f30, event_type=77, data=0x849df50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#58 QCoreApplicationPrivate::sendPostedEvents (receiver=0x8fe0f30, event_type=77, data=0x849df50) at kernel/qcoreapplication.cpp:1372
#59 0x02596e0d in QCoreApplication::sendPostedEvents (receiver=0x8fe0f30, event_type=77) at kernel/qcoreapplication.cpp:1265
#60 0x03edec46 in dispatchPendingUpdateRequests (this=0x859c920) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:189
#61 QGraphicsScenePrivate::_q_processDirtyItems (this=0x859c920) at graphicsview/qgraphicsscene.cpp:510
#62 0x03edf026 in QGraphicsScene::qt_metacall (this=0x84f4fa0, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x940d988) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#63 0x00920a9a in Plasma::Corona::qt_metacall (this=0x84f4fa0, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x940d988) at ./corona.moc:109
#64 0x002a120a in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#65 0x025996ba in QMetaObject::metacall (object=0x84f4fa0, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0x940d988) at kernel/qmetaobject.cpp:237
#66 0x025a3e16 in QMetaCallEvent::placeMetaCall (this=0x945c500, object=0x84f4fa0) at kernel/qobject.cpp:535
#67 0x025a83b7 in QObject::event (this=0x84f4fa0, e=0x945c500) at kernel/qobject.cpp:1226
#68 0x03eebe44 in QGraphicsScene::event (this=0x84f4fa0, event=0x945c500) at graphicsview/qgraphicsscene.cpp:3544
#69 0x03870d24 in QApplicationPrivate::notify_helper (this=0x84f4408, receiver=0x84f4fa0, e=0x945c500) at kernel/qapplication.cpp:4462
#70 0x038758ce in QApplication::notify (this=0x84eb760, receiver=0x84f4fa0, e=0x945c500) at kernel/qapplication.cpp:3862
#71 0x011cf3ca in KApplication::notify (this=0x84eb760, receiver=0x84f4fa0, event=0x945c500) at ../../kdeui/kernel/kapplication.cpp:311
#72 0x025930bb in QCoreApplication::notifyInternal (this=0x84eb760, receiver=0x84f4fa0, event=0x945c500) at kernel/qcoreapplication.cpp:731
#73 0x02596c79 in sendEvent (receiver=0x0, event_type=0, data=0x849df50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#74 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x849df50) at kernel/qcoreapplication.cpp:1372
#75 0x02596e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#76 0x025c03c4 in sendPostedEvents (s=0x84f4548) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#77 postEventSourceDispatch (s=0x84f4548) at kernel/qeventdispatcher_glib.cpp:277
#78 0x01d15aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#79 0x01d16270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#80 0x01d16524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#81 0x025c053c in QEventDispatcherGlib::processEvents (this=0x849daa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#82 0x039271e5 in QGuiEventDispatcherGlib::processEvents (this=0x849daa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#83 0x02592289 in QEventLoop::processEvents (this=0xbfd60b64, flags=...) at kernel/qeventloop.cpp:149
#84 0x02592522 in QEventLoop::exec (this=0xbfd60b64, flags=...) at kernel/qeventloop.cpp:201
#85 0x02596ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#86 0x0386e8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#87 0x002a85a5 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#88 0x080485cb in _start ()

Possible duplicates by query: bug 279930, bug 279925, bug 279921, bug 279719, bug 279196.

Reported using DrKonqi