Bug 276223

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:

Shutdown from KDE crashes Plasma. Not sure if this is an Amarok issue.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76ef720 (LWP 2076))]

Thread 6 (Thread 0xaf5edb70 (LWP 2140)):
#0  0x064e97a4 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00686656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x02ee9fc2 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02eeae63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02eeb524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02d9a577 in QEventDispatcherGlib::processEvents (this=0x99418e0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x02d6c289 in QEventLoop::processEvents (this=0xaf5ed280, flags=...) at kernel/qeventloop.cpp:149
#7  0x02d6c522 in QEventLoop::exec (this=0xaf5ed280, flags=...) at kernel/qeventloop.cpp:201
#8  0x02c762a0 in QThread::exec (this=0x9942750) at thread/qthread.cpp:492
#9  0x02d4dfdb in QInotifyFileSystemWatcherEngine::run (this=0x9942750) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x02c78da2 in QThreadPrivate::start (arg=0x9942750) at thread/qthread_unix.cpp:320
#11 0x064e5e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0067873e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 5 (Thread 0xadf90b70 (LWP 2141)):
#0  socketNotifierSourcePrepare (timeout=0xadf900cc) at kernel/qeventdispatcher_glib.cpp:72
#1  0x02ee9fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x02eeae63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02eeb524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02d9a577 in QEventDispatcherGlib::processEvents (this=0x99d2e70, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x02d6c289 in QEventLoop::processEvents (this=0xadf90280, flags=...) at kernel/qeventloop.cpp:149
#6  0x02d6c522 in QEventLoop::exec (this=0xadf90280, flags=...) at kernel/qeventloop.cpp:201
#7  0x02c762a0 in QThread::exec (this=0x92728c8) at thread/qthread.cpp:492
#8  0x02d4dfdb in QInotifyFileSystemWatcherEngine::run (this=0x92728c8) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x02c78da2 in QThreadPrivate::start (arg=0x92728c8) at thread/qthread_unix.cpp:320
#10 0x064e5e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x0067873e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xac769b70 (LWP 2147)):
#0  0x064e9760 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00686656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x02eeaff9 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02eeb92b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x04ea6304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#5  0x02f142df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x064e5e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#7  0x0067873e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xab298b70 (LWP 2152)):
#0  0x005bec72 in ?? () from /lib/i386-linux-gnu/libc.so.6
#1  0x00669f1d in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x02efb84b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02eeb1af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02eeb524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02d9a577 in QEventDispatcherGlib::processEvents (this=0x9e85dc0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x02d6c289 in QEventLoop::processEvents (this=0xab298280, flags=...) at kernel/qeventloop.cpp:149
#7  0x02d6c522 in QEventLoop::exec (this=0xab298280, flags=...) at kernel/qeventloop.cpp:201
#8  0x02c762a0 in QThread::exec (this=0x9ea53b8) at thread/qthread.cpp:492
#9  0x02d4dfdb in QInotifyFileSystemWatcherEngine::run (this=0x9ea53b8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x02c78da2 in QThreadPrivate::start (arg=0x9ea53b8) at thread/qthread_unix.cpp:320
#11 0x064e5e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0067873e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xacf6bb70 (LWP 2483)):
#0  0x00d72416 in __kernel_vsyscall ()
#1  0x064ea48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x006863fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x0206bb57 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x064e5e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#5  0x0067873e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb76ef720 (LWP 2076)):
[KCrash Handler]
#7  0x0109f454 in QString (this=0xcb40061, group=0, state=0) at /usr/include/qt4/QtCore/qstring.h:728
#8  KIconEffect::fingerprint (this=0xcb40061, group=0, state=0) at ../../kdeui/icons/kiconeffect.cpp:169
#9  0x010a5352 in KIconLoaderPrivate::makeCacheKey (this=0xcb4004d, name=..., group=KIconLoader::Desktop, overlays=..., size=24, state=0) at ../../kdeui/icons/kiconloader.cpp:782
#10 0x010ac398 in KIconLoader::loadIcon (this=0xc5011f8, _name=..., group=KIconLoader::Desktop, size=24, state=0, overlays=..., path_store=0x0, canReturnNull=false) at ../../kdeui/icons/kiconloader.cpp:1226
#11 0x010a3d76 in KIconEngine::pixmap (this=0xced4ac8, size=..., mode=QIcon::Normal, state=QIcon::Off) at ../../kdeui/icons/kiconengine.cpp:93
#12 0x07112ca2 in QIcon::pixmap (this=0x9cb14bc, size=..., mode=QIcon::Normal, state=QIcon::Off) at image/qicon.cpp:676
#13 0x002aa969 in Plasma::IconWidgetPrivate::decoration (this=0x9cb1418, option=0x91a9370, useHoverEffect=false, usePressedEffect=false) at ../../plasma/widgets/iconwidget.cpp:812
#14 0x002b121d in Plasma::IconWidget::paint (this=0x9a46670, painter=0xbfa233bc, option=0x91a9370, widget=0x0) at ../../plasma/widgets/iconwidget.cpp:1128
#15 0x03b8a0dd in SystemTray::DBusSystemTrayWidget::paint (this=0x9a46670, painter=0xbfa233bc, option=0x91a9370, widget=0x0) at ../../../../../plasma/generic/applets/systemtray/protocols/dbussystemtray/dbussystemtraywidget.cpp:189
#16 0x076bb9ec in _q_paintItem (item=<value optimized out>, painter=0xbfa233bc, option=0x91a9370, widget=0x0, useWindowOpacity=false, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4314
#17 0x076bbcf2 in _q_paintIntoCache (pix=0xbfa2388c, item=0x9a46678, pixmapExposed=..., itemToPixmap=..., renderHints=..., option=0x91a9370, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4352
#18 0x076cfa00 in QGraphicsScenePrivate::drawItemHelper (this=0x91a9220, item=0x9a46678, painter=0xbfa25074, option=0x91a9370, widget=0xb9be090, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4690
#19 0x076d06c2 in QGraphicsScenePrivate::draw (this=0x91a9220, item=0x9a46678, painter=0xbfa25074, viewTransform=0xbfa24e5c, transformPtr=0xbfa23c70, exposedRegion=0xc31c748, widget=0xb9be090, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4962
#20 0x076d1402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x91a9220, item=0x9a46678, painter=0xbfa25074, viewTransform=0xbfa24e5c, exposedRegion=0xc31c748, widget=0xb9be090, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#21 0x076d04ec in QGraphicsScenePrivate::draw (this=0x91a9220, item=0x94f09e0, painter=0xbfa25074, viewTransform=0xbfa24e5c, transformPtr=0xbfa24110, exposedRegion=0xc31c748, widget=0xb9be090, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#22 0x076d1402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x91a9220, item=0x94f09e0, painter=0xbfa25074, viewTransform=0xbfa24e5c, exposedRegion=0xc31c748, widget=0xb9be090, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#23 0x076d04ec in QGraphicsScenePrivate::draw (this=0x91a9220, item=0x954f6d8, painter=0xbfa25074, viewTransform=0xbfa24e5c, transformPtr=0xbfa245b0, exposedRegion=0xc31c748, widget=0xb9be090, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#24 0x076d1402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x91a9220, item=0x954f6d8, painter=0xbfa25074, viewTransform=0xbfa24e5c, exposedRegion=0xc31c748, widget=0xb9be090, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#25 0x076d04ec in QGraphicsScenePrivate::draw (this=0x91a9220, item=0x9355bd0, painter=0xbfa25074, viewTransform=0xbfa24e5c, transformPtr=0xbfa24a50, exposedRegion=0xc31c748, widget=0xb9be090, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#26 0x076d1402 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x91a9220, item=0x9355bd0, painter=0xbfa25074, viewTransform=0xbfa24e5c, exposedRegion=0xc31c748, widget=0xb9be090, parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#27 0x076d1c06 in QGraphicsScenePrivate::drawItems (this=0x91a9220, painter=0xbfa25074, viewTransform=0xbfa24e5c, exposedRegion=0xc31c748, widget=0xb9be090) at graphicsview/qgraphicsscene.cpp:4735
#28 0x076f0ea1 in QGraphicsView::paintEvent (this=0xbd5b648, event=0xbfa25784) at graphicsview/qgraphicsview.cpp:3469
#29 0x0098b484 in PanelView::paintEvent (this=0xbd5b648, event=0xbfa25784) at ../../../../plasma/desktop/shell/panelview.cpp:1593
#30 0x070b518e in QWidget::event (this=0xbd5b648, event=0xbfa25784) at kernel/qwidget.cpp:8405
#31 0x074a6f63 in QFrame::event (this=0xbd5b648, e=0xbfa25784) at widgets/qframe.cpp:557
#32 0x075355d2 in QAbstractScrollArea::viewportEvent (this=0xbd5b648, e=0xbfa25784) at widgets/qabstractscrollarea.cpp:1043
#33 0x076f236f in QGraphicsView::viewportEvent (this=0xbd5b648, event=0xbfa25784) at graphicsview/qgraphicsview.cpp:2864
#34 0x07537ed5 in viewportEvent (this=0x98ca050, o=0xb9be090, e=0xbfa25784) at widgets/qabstractscrollarea_p.h:100
#35 QAbstractScrollAreaFilter::eventFilter (this=0x98ca050, o=0xb9be090, e=0xbfa25784) at widgets/qabstractscrollarea_p.h:116
#36 0x02d6d25a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x913e768, receiver=0xb9be090, event=0xbfa25784) at kernel/qcoreapplication.cpp:846
#37 0x0705cd00 in QApplicationPrivate::notify_helper (this=0x913e768, receiver=0xb9be090, e=0xbfa25784) at kernel/qapplication.cpp:4458
#38 0x0706197b in QApplication::notify (this=0x911fe48, receiver=0xb9be090, e=0xbfa25784) at kernel/qapplication.cpp:4427
#39 0x010fe3ca in KApplication::notify (this=0x911fe48, receiver=0xb9be090, event=0xbfa25784) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x02d6d0bb in QCoreApplication::notifyInternal (this=0x911fe48, receiver=0xb9be090, event=0xbfa25784) at kernel/qcoreapplication.cpp:731
#41 0x070b1f0c in sendSpontaneousEvent (this=0x9ae4598, pdev=0x9507ce4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9ae3dc8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#42 QWidgetPrivate::drawWidget (this=0x9ae4598, pdev=0x9507ce4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9ae3dc8) at kernel/qwidget.cpp:5492
#43 0x070b2b7c in QWidgetPrivate::paintSiblingsRecursive (this=0xc31c3f8, pdev=0x9507ce4, siblings=..., index=<value optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9ae3dc8) at kernel/qwidget.cpp:5699
#44 0x070b2a42 in QWidgetPrivate::paintSiblingsRecursive (this=0xc31c3f8, pdev=0x9507ce4, siblings=..., index=4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9ae3dc8) at kernel/qwidget.cpp:5686
#45 0x070b1c80 in QWidgetPrivate::drawWidget (this=0xc31c3f8, pdev=0x9507ce4, rgn=..., offset=..., flags=5, sharedPainter=0x0, backingStore=0x9ae3dc8) at kernel/qwidget.cpp:5545
#46 0x0728d908 in QWidgetBackingStore::sync (this=0x9ae3dc8) at painting/qbackingstore.cpp:1333
#47 0x070a7843 in QWidgetPrivate::syncBackingStore (this=0xc31c3f8) at kernel/qwidget.cpp:1842
#48 0x070b57e5 in QWidget::event (this=0xbd5b648, event=0xc5011f8) at kernel/qwidget.cpp:8552
#49 0x074a6f63 in QFrame::event (this=0xbd5b648, e=0xc5011f8) at widgets/qframe.cpp:557
#50 0x0753733f in QAbstractScrollArea::event (this=0xbd5b648, e=0xc5011f8) at widgets/qabstractscrollarea.cpp:996
#51 0x076e5686 in QGraphicsView::event (this=0xbd5b648, event=0xc5011f8) at graphicsview/qgraphicsview.cpp:2741
#52 0x0098b7c3 in PanelView::event (this=0xbd5b648, event=0xc5011f8) at ../../../../plasma/desktop/shell/panelview.cpp:1604
#53 0x0705cd24 in QApplicationPrivate::notify_helper (this=0x913e768, receiver=0xbd5b648, e=0xc5011f8) at kernel/qapplication.cpp:4462
#54 0x0706197b in QApplication::notify (this=0x911fe48, receiver=0xbd5b648, e=0xc5011f8) at kernel/qapplication.cpp:4427
#55 0x010fe3ca in KApplication::notify (this=0x911fe48, receiver=0xbd5b648, event=0xc5011f8) at ../../kdeui/kernel/kapplication.cpp:311
#56 0x02d6d0bb in QCoreApplication::notifyInternal (this=0x911fe48, receiver=0xbd5b648, event=0xc5011f8) at kernel/qcoreapplication.cpp:731
#57 0x02d70c79 in sendEvent (receiver=0xbd5b648, event_type=77, data=0x90c5f50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#58 QCoreApplicationPrivate::sendPostedEvents (receiver=0xbd5b648, event_type=77, data=0x90c5f50) at kernel/qcoreapplication.cpp:1372
#59 0x02d70e0d in QCoreApplication::sendPostedEvents (receiver=0xbd5b648, event_type=77) at kernel/qcoreapplication.cpp:1265
#60 0x076c81b6 in dispatchPendingUpdateRequests (this=0x91a9220) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:189
#61 QGraphicsScenePrivate::_q_processDirtyItems (this=0x91a9220) at graphicsview/qgraphicsscene.cpp:510
#62 0x076c8596 in QGraphicsScene::qt_metacall (this=0x91bcdf0, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xcb84430) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#63 0x001eda9a in Plasma::Corona::qt_metacall (this=0x91bcdf0, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0xcb84430) at ./corona.moc:109
#64 0x0097e20a in DesktopCorona::qt_metacall (this=0x91bcdf0, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0xcb84430) at ./desktopcorona.moc:101
#65 0x02d736ba in QMetaObject::metacall (object=0x91bcdf0, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0xcb84430) at kernel/qmetaobject.cpp:237
#66 0x02d7de16 in QMetaCallEvent::placeMetaCall (this=0xcdde0c0, object=0x91bcdf0) at kernel/qobject.cpp:535
#67 0x02d823b7 in QObject::event (this=0x91bcdf0, e=0xcdde0c0) at kernel/qobject.cpp:1226
#68 0x076d53b4 in QGraphicsScene::event (this=0x91bcdf0, event=0xcdde0c0) at graphicsview/qgraphicsscene.cpp:3544
#69 0x0705cd24 in QApplicationPrivate::notify_helper (this=0x913e768, receiver=0x91bcdf0, e=0xcdde0c0) at kernel/qapplication.cpp:4462
#70 0x070618ce in QApplication::notify (this=0x911fe48, receiver=0x91bcdf0, e=0xcdde0c0) at kernel/qapplication.cpp:3862
#71 0x010fe3ca in KApplication::notify (this=0x911fe48, receiver=0x91bcdf0, event=0xcdde0c0) at ../../kdeui/kernel/kapplication.cpp:311
#72 0x02d6d0bb in QCoreApplication::notifyInternal (this=0x911fe48, receiver=0x91bcdf0, event=0xcdde0c0) at kernel/qcoreapplication.cpp:731
#73 0x02d70c79 in sendEvent (receiver=0x0, event_type=0, data=0x90c5f50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#74 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x90c5f50) at kernel/qcoreapplication.cpp:1372
#75 0x02d70e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#76 0x02d9a3c4 in sendPostedEvents (s=0x913ebb0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#77 postEventSourceDispatch (s=0x913ebb0) at kernel/qeventdispatcher_glib.cpp:277
#78 0x02eeaaa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#79 0x02eeb270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#80 0x02eeb524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#81 0x02d9a53c in QEventDispatcherGlib::processEvents (this=0x90c5aa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#82 0x07110775 in QGuiEventDispatcherGlib::processEvents (this=0x90c5aa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#83 0x02d6c289 in QEventLoop::processEvents (this=0xbfa270b4, flags=...) at kernel/qeventloop.cpp:149
#84 0x02d6c522 in QEventLoop::exec (this=0xbfa270b4, flags=...) at kernel/qeventloop.cpp:201
#85 0x02d70ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#86 0x0705a8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#87 0x009855a5 in kdemain (argc=1, argv=0xbfa272c4) at ../../../../plasma/desktop/shell/main.cpp:118
#88 0x080485cb in main (argc=1, argv=0xbfa272c4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 275966, bug 275909, bug 275871, bug 275753, bug 275643.

Reported using DrKonqi