Bug 273740

Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.3 (4.6.3)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
Changing VPN connection the second time. This can be either a disconnect after an initial connection or a reconnect after falling off an existing connection. 
- Unusual behavior I noticed:
The manipulation of network statuses works fine. Such as connecting wireless or connecting to a VPN. The second time I do anything, the desktop gets very slow and kded4 uses 100% of a processor. Sometimes the desktop freezes completely. Killing kded4 causes plasma desktop to die and come back with the default look. Starting kded4 again re-themes to proper look.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f0f8993b7c0 (LWP 2067))]

Thread 4 (Thread 0x7f0f5bfff700 (LWP 2071)):
#0  0x00007f0f89235f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0f7dc17104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0f7dc17639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0f86443446 in QEventDispatcherGlib::processEvents (this=0x2c56020, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f0f86417882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0f86417abc in QEventLoop::exec (this=0x7f0f5bffecd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f0f8632e924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f0f863f9c2f in QInotifyFileSystemWatcherEngine::run (this=0x2c55a90) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f0f86331175 in QThreadPrivate::start (arg=0x2c55a90) at thread/qthread_unix.cpp:320
#9  0x00007f0f7bc9c853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f0f7e51ad8c in start_thread (arg=0x7f0f5bfff700) at pthread_create.c:304
#11 0x00007f0f8924304d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f0f59ff3700 (LWP 2072)):
#0  0x00007f0f89235f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0f7dc17104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0f7dc17639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0f86443446 in QEventDispatcherGlib::processEvents (this=0x2ce4820, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f0f86417882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0f86417abc in QEventLoop::exec (this=0x7f0f59ff2cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f0f8632e924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f0f863f9c2f in QInotifyFileSystemWatcherEngine::run (this=0x2ce3d40) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f0f86331175 in QThreadPrivate::start (arg=0x2ce3d40) at thread/qthread_unix.cpp:320
#9  0x00007f0f7bc9c853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f0f7e51ad8c in start_thread (arg=0x7f0f59ff3700) at pthread_create.c:304
#11 0x00007f0f8924304d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f0f56132700 (LWP 2078)):
#0  0x00007f0f89235f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0f7dc17104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0f7dc179f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0f57249c44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f0f7dc3e3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0f7bc9c853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f0f7e51ad8c in start_thread (arg=0x7f0f56132700) at pthread_create.c:304
#7  0x00007f0f8924304d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0f8993b7c0 (LWP 2067)):
[KCrash Handler]
#6  0x00007f0f870776ef in QString (this=0x389c368, group=0, state=0) at /usr/include/qt4/QtCore/qstring.h:728
#7  KIconEffect::fingerprint (this=0x389c368, group=0, state=0) at ../../kdeui/icons/kiconeffect.cpp:169
#8  0x00007f0f8707d0fb in KIconLoaderPrivate::makeCacheKey (this=<value optimized out>, name=..., group=KIconLoader::Desktop, overlays=..., size=24, state=0) at ../../kdeui/icons/kiconloader.cpp:782
#9  0x00007f0f87083e13 in KIconLoader::loadIcon (this=0x7f0f5c03fd50, _name=<value optimized out>, group=KIconLoader::Desktop, size=24, state=0, overlays=..., path_store=0x0, canReturnNull=false) at ../../kdeui/icons/kiconloader.cpp:1226
#10 0x00007f0f8707bda9 in KIconEngine::pixmap (this=<value optimized out>, size=..., mode=<value optimized out>, state=<value optimized out>) at ../../kdeui/icons/kiconengine.cpp:93
#11 0x00007f0f85882dd5 in QIcon::pixmap (this=<value optimized out>, size=<value optimized out>, mode=<value optimized out>, state=<value optimized out>) at image/qicon.cpp:676
#12 0x00007f0f88e25389 in Plasma::IconWidgetPrivate::decoration (this=0x38f0110, option=<value optimized out>, useHoverEffect=false, usePressedEffect=false) at ../../plasma/widgets/iconwidget.cpp:812
#13 0x00007f0f88e2b141 in Plasma::IconWidget::paint (this=0x38eaed0, painter=0x7fffc1dfb610, option=0x2235a78, widget=<value optimized out>) at ../../plasma/widgets/iconwidget.cpp:1128
#14 0x00007f0f696683e9 in SystemTray::DBusSystemTrayWidget::paint (this=0x38eaed0, painter=0x7fffc1dfb610, option=0x2235a78, widget=<value optimized out>) at ../../../../../plasma/generic/applets/systemtray/protocols/dbussystemtray/dbussystemtraywidget.cpp:189
#15 0x00007f0f85dc919d in _q_paintItem (item=<value optimized out>, painter=0x7fffc1dfb610, option=0x2235a78, widget=0x0, useWindowOpacity=<value optimized out>, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4314
#16 0x00007f0f85dc94b0 in _q_paintIntoCache (pix=0x7fffc1dfbb40, item=0x38eaee0, pixmapExposed=..., itemToPixmap=..., renderHints=..., option=0x2235a78, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4352
#17 0x00007f0f85ddcce8 in QGraphicsScenePrivate::drawItemHelper (this=0x2235850, item=0x38eaee0, painter=0x7fffc1dfdb50, option=0x2235a78, widget=<value optimized out>, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4690
#18 0x00007f0f85ddd8ba in QGraphicsScenePrivate::draw (this=0x2235850, item=0x38eaee0, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, transformPtr=0x7fffc1dfc200, exposedRegion=0x33f8760, widget=0x2e2a750, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4962
#19 0x00007f0f85dde565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x2235850, item=0x38eaee0, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, exposedRegion=0x33f8760, widget=0x2e2a750, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#20 0x00007f0f85ddd730 in QGraphicsScenePrivate::draw (this=0x2235850, item=0x24c9ed0, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, transformPtr=0x7fffc1dfc800, exposedRegion=0x33f8760, widget=0x2e2a750, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#21 0x00007f0f85dde565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x2235850, item=0x24c9ed0, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, exposedRegion=0x33f8760, widget=0x2e2a750, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#22 0x00007f0f85ddd730 in QGraphicsScenePrivate::draw (this=0x2235850, item=0x24bdcc0, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, transformPtr=0x7fffc1dfce00, exposedRegion=0x33f8760, widget=0x2e2a750, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#23 0x00007f0f85dde565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x2235850, item=0x24bdcc0, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, exposedRegion=0x33f8760, widget=0x2e2a750, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#24 0x00007f0f85ddd730 in QGraphicsScenePrivate::draw (this=0x2235850, item=0x22bc970, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, transformPtr=0x7fffc1dfd400, exposedRegion=0x33f8760, widget=0x2e2a750, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#25 0x00007f0f85dde565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x2235850, item=0x22bc970, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, exposedRegion=0x33f8760, widget=0x2e2a750, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#26 0x00007f0f85dded94 in QGraphicsScenePrivate::drawItems (this=0x2235850, painter=0x7fffc1dfdb50, viewTransform=0x7fffc1dfd8e0, exposedRegion=0x33f8760, widget=0x2e2a750) at graphicsview/qgraphicsscene.cpp:4735
#27 0x00007f0f85dfbbd2 in QGraphicsView::paintEvent (this=<value optimized out>, event=<value optimized out>) at graphicsview/qgraphicsview.cpp:3469
#28 0x00007f0f8582ac6a in QWidget::event (this=0x2f8fc80, event=0x7fffc1dfe470) at kernel/qwidget.cpp:8405
#29 0x00007f0f85bdaa66 in QFrame::event (this=0x2f8fc80, e=0x7fffc1dfe470) at widgets/qframe.cpp:557
#30 0x00007f0f85dfce8b in QGraphicsView::viewportEvent (this=0x2f8fc80, event=0x7fffc1dfe470) at graphicsview/qgraphicsview.cpp:2864
#31 0x00007f0f86418627 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2e2a750, event=0x7fffc1dfe470) at kernel/qcoreapplication.cpp:846
#32 0x00007f0f857d99b1 in QApplicationPrivate::notify_helper (this=0x2146e30, receiver=0x2e2a750, e=0x7fffc1dfe470) at kernel/qapplication.cpp:4458
#33 0x00007f0f857de3aa in QApplication::notify (this=<value optimized out>, receiver=0x2e2a750, e=0x7fffc1dfe470) at kernel/qapplication.cpp:4341
#34 0x00007f0f870d1196 in KApplication::notify (this=0x212dc70, receiver=0x2e2a750, event=0x7fffc1dfe470) at ../../kdeui/kernel/kapplication.cpp:311
#35 0x00007f0f8641849c in QCoreApplication::notifyInternal (this=0x212dc70, receiver=0x2e2a750, event=0x7fffc1dfe470) at kernel/qcoreapplication.cpp:731
#36 0x00007f0f85827abd in sendSpontaneousEvent (this=0x340b940, pdev=0x2c36428, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x2dab210) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#37 QWidgetPrivate::drawWidget (this=0x340b940, pdev=0x2c36428, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x2dab210) at kernel/qwidget.cpp:5492
#38 0x00007f0f858286d2 in QWidgetPrivate::paintSiblingsRecursive (this=0x33f82d0, pdev=0x2c36428, siblings=..., index=<value optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x2dab210) at kernel/qwidget.cpp:5699
#39 0x00007f0f8582858a in QWidgetPrivate::paintSiblingsRecursive (this=0x33f82d0, pdev=0x2c36428, siblings=..., index=4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x2dab210) at kernel/qwidget.cpp:5686
#40 0x00007f0f858277fc in QWidgetPrivate::drawWidget (this=0x33f82d0, pdev=0x2c36428, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x2dab210) at kernel/qwidget.cpp:5545
#41 0x00007f0f859ec2fb in QWidgetBackingStore::sync (this=0x2dab210) at painting/qbackingstore.cpp:1333
#42 0x00007f0f8581df50 in QWidgetPrivate::syncBackingStore (this=0x33f82d0) at kernel/qwidget.cpp:1842
#43 0x00007f0f8582b184 in QWidget::event (this=0x2f8fc80, event=0x3559d00) at kernel/qwidget.cpp:8552
#44 0x00007f0f85bdaa66 in QFrame::event (this=0x2f8fc80, e=0x3559d00) at widgets/qframe.cpp:557
#45 0x00007f0f85c5c1fb in QAbstractScrollArea::event (this=0x2f8fc80, e=0x3559d00) at widgets/qabstractscrollarea.cpp:996
#46 0x00007f0f895352c6 in PanelView::event (this=0x2f8fc80, event=0x3559d00) at ../../../../plasma/desktop/shell/panelview.cpp:1604
#47 0x00007f0f857d99e4 in QApplicationPrivate::notify_helper (this=0x2146e30, receiver=0x2f8fc80, e=0x3559d00) at kernel/qapplication.cpp:4462
#48 0x00007f0f857de3aa in QApplication::notify (this=<value optimized out>, receiver=0x2f8fc80, e=0x3559d00) at kernel/qapplication.cpp:4341
#49 0x00007f0f870d1196 in KApplication::notify (this=0x212dc70, receiver=0x2f8fc80, event=0x3559d00) at ../../kdeui/kernel/kapplication.cpp:311
#50 0x00007f0f8641849c in QCoreApplication::notifyInternal (this=0x212dc70, receiver=0x2f8fc80, event=0x3559d00) at kernel/qcoreapplication.cpp:731
#51 0x00007f0f8641bc25 in sendEvent (receiver=0x2f8fc80, event_type=77, data=0x2064b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#52 QCoreApplicationPrivate::sendPostedEvents (receiver=0x2f8fc80, event_type=77, data=0x2064b60) at kernel/qcoreapplication.cpp:1372
#53 0x00007f0f85dd588a in dispatchPendingUpdateRequests (this=0x2235850) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:189
#54 QGraphicsScenePrivate::_q_processDirtyItems (this=0x2235850) at graphicsview/qgraphicsscene.cpp:510
#55 0x00007f0f85dd5caa in QGraphicsScene::qt_metacall (this=0x213f000, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x392b020) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#56 0x00007f0f88d78d55 in Plasma::Corona::qt_metacall (this=0x213f000, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x392b020) at ./corona.moc:109
#57 0x00007f0f89529225 in DesktopCorona::qt_metacall (this=0x213f000, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x392b020) at ./desktopcorona.moc:101
#58 0x00007f0f8642c49a in QObject::event (this=0x213f000, e=<value optimized out>) at kernel/qobject.cpp:1226
#59 0x00007f0f85de258b in QGraphicsScene::event (this=0x213f000, event=0x3d83260) at graphicsview/qgraphicsscene.cpp:3544
#60 0x00007f0f857d99e4 in QApplicationPrivate::notify_helper (this=0x2146e30, receiver=0x213f000, e=0x3d83260) at kernel/qapplication.cpp:4462
#61 0x00007f0f857de3aa in QApplication::notify (this=<value optimized out>, receiver=0x213f000, e=0x3d83260) at kernel/qapplication.cpp:4341
#62 0x00007f0f870d1196 in KApplication::notify (this=0x212dc70, receiver=0x213f000, event=0x3d83260) at ../../kdeui/kernel/kapplication.cpp:311
#63 0x00007f0f8641849c in QCoreApplication::notifyInternal (this=0x212dc70, receiver=0x213f000, event=0x3d83260) at kernel/qcoreapplication.cpp:731
#64 0x00007f0f8641bc25 in sendEvent (receiver=0x0, event_type=0, data=0x2064b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#65 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x2064b60) at kernel/qcoreapplication.cpp:1372
#66 0x00007f0f86443253 in sendPostedEvents (s=0x21445c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#67 postEventSourceDispatch (s=0x21445c0) at kernel/qeventdispatcher_glib.cpp:277
#68 0x00007f0f7dc16bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#69 0x00007f0f7dc173a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#70 0x00007f0f7dc17639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#71 0x00007f0f864433ef in QEventDispatcherGlib::processEvents (this=0x2064340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#72 0x00007f0f85880dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#73 0x00007f0f86417882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#74 0x00007f0f86417abc in QEventLoop::exec (this=0x7fffc1e005d0, flags=...) at kernel/qeventloop.cpp:201
#75 0x00007f0f8641becb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#76 0x00007f0f8952fb2c in kdemain (argc=1, argv=0x7fffc1e009d8) at ../../../../plasma/desktop/shell/main.cpp:120
#77 0x00007f0f8917beff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7fffc1e009d8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffc1e009c8) at libc-start.c:226
#78 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 258706.

Possible duplicates by query: bug 273679, bug 273663, bug 273628, bug 273611, bug 273593.

Reported using DrKonqi