Bug 236932

Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-22-generic i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
After adding some gadgets eariler, I had just checked adding a gadget, when the program crashed and the bug report process started.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7856aa0 (LWP 1398))]

Thread 4 (Thread 0xaacb9b70 (LWP 1406)):
#0  0x07526e16 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0x010ea6fb in qt_gettime () at kernel/qcore_unix.cpp:111
#2  0x010ef825 in QTimerInfoList::updateCurrentTime (this=0x95711b4) at kernel/qeventdispatcher_unix.cpp:340
#3  0x010ef86a in QTimerInfoList::timerWait (this=0x95711b4, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#4  0x010ed818 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xaacb90cc) at kernel/qeventdispatcher_glib.cpp:136
#5  0x010ed8a5 in timerSourcePrepare (source=0x0, timeout=0x752aff4) at kernel/qeventdispatcher_glib.cpp:169
#6  0x01215aca in g_main_context_prepare () from /lib/libglib-2.0.so.0
#7  0x01215ee9 in ?? () from /lib/libglib-2.0.so.0
#8  0x012164b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#9  0x010ed60f in QEventDispatcherGlib::processEvents (this=0x9571218, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#10 0x010c0059 in QEventLoop::processEvents (this=0xaacb9290, flags=) at kernel/qeventloop.cpp:149
#11 0x010c04aa in QEventLoop::exec (this=0xaacb9290, flags=...) at kernel/qeventloop.cpp:201
#12 0x00fbc5a8 in QThread::exec (this=0x95785a0) at thread/qthread.cpp:487
#13 0x0109fc1b in QInotifyFileSystemWatcherEngine::run (this=0x95785a0) at io/qfilesystemwatcher_inotify.cpp:248
#14 0x00fbf32e in QThreadPrivate::start (arg=0x95785a0) at thread/qthread_unix.cpp:248
#15 0x0023296e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0x0047aa0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa9c37b70 (LWP 1783)):
#0  0x008c7422 in __kernel_vsyscall ()
#1  0x00237015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x01baec97 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x1c881a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#3  0x01baece1 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x1c881a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#4  0x0023296e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0x0047aa0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa798ab70 (LWP 2077)):
#0  0x008c7422 in __kernel_vsyscall ()
#1  0x00237015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x040b49d7 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x040b4a21 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x0023296e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0x0047aa0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7856aa0 (LWP 1398)):
[KCrash Handler]
#6  QGraphicsScene::addItem (this=0x8fd9ca8, item=0x9b511a0) at graphicsview/qgraphicsscene.cpp:2598
#7  0x014eef26 in Plasma::Corona::addOffscreenWidget (this=0x8fd9ca8, widget=0x9b51198) at ../../plasma/corona.cpp:501
#8  0x037a17ef in ControllerWindow::showWidgetExplorer (this=0x9b8f218) at ../../../../plasma/desktop/shell/controllerwindow.cpp:247
#9  0x037c860e in PlasmaApp::showWidgetExplorer (this=0x8e092c8, screen=0, containment=0x931ad40) at ../../../../plasma/desktop/shell/plasmaapp.cpp:469
#10 0x037b9289 in PanelView::showWidgetExplorer (this=0x950add0) at ../../../../plasma/desktop/shell/panelview.cpp:1056
#11 0x037be7db in PanelView::qt_metacall (this=0x950add0, _c=QMetaObject::InvokeMetaMethod, _id=59, _a=0xbfaff208) at ./panelview.moc:122
#12 0x010c6c9a in QMetaObject::metacall (object=0x950add0, cl=159848288, idx=59, argv=0xbfaff208) at kernel/qmetaobject.cpp:237
#13 0x010d53d5 in QMetaObject::activate (sender=0x931ad40, m=0x1692948, local_signal_index=6, argv=0xbfaff208) at kernel/qobject.cpp:3293
#14 0x014d40c3 in Plasma::Containment::showAddWidgetsInterface (this=0x931ad40, _t1=...) at ./containment.moc:213
#15 0x014d40fe in Plasma::ContainmentPrivate::triggerShowAddWidgets (this=0x93243b0) at ../../plasma/containment.cpp:2167
#16 0x014e4c24 in Plasma::Containment::qt_metacall (this=0x931ad40, _c=QMetaObject::InvokeMetaMethod, _id=74, _a=0xbfaff3b8) at ./containment.moc:150
#17 0x0237db2a in Panel::qt_metacall (this=0x931ad40, _c=QMetaObject::InvokeMetaMethod, _id=74, _a=0xbfaff3b8) at ./panel.moc:79
#18 0x010c6c9a in QMetaObject::metacall (object=0x931ad40, cl=159848288, idx=74, argv=0xbfaff3b8) at kernel/qmetaobject.cpp:237
#19 0x010d53d5 in QMetaObject::activate (sender=0x9374ca0, m=0x6aabd58, local_signal_index=1, argv=0xbfaff3b8) at kernel/qobject.cpp:3293
#20 0x0617cbd9 in QAction::triggered (this=0x9374ca0, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#21 0x0617edcc in QAction::activate (this=0x9374ca0, event=QAction::Trigger) at kernel/qaction.cpp:1255
#22 0x0662260c in QMenuPrivate::activateCausedStack (this=0x9c4f2d0, causedStack=..., action=0x9374ca0, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:1011
#23 0x06628abb in QMenuPrivate::activateAction (this=0x9c4f2d0, action=0x9374ca0, action_e=QAction::Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1103
#24 0x06629ac7 in QMenu::mouseReleaseEvent (this=0xbfb004bc, e=0xbfaffc50) at widgets/qmenu.cpp:2312
#25 0x00b9df65 in KMenu::mouseReleaseEvent (this=0xbfb004bc, e=0xbfaffc50) at ../../kdeui/widgets/kmenu.cpp:471
#26 0x061e17f8 in QWidget::event (this=0xbfb004bc, event=0xbfaffc50) at kernel/qwidget.cpp:7998
#27 0x0662b0cc in QMenu::event (this=0xbfb004bc, e=0xbfaffc50) at widgets/qmenu.cpp:2414
#28 0x061834dc in QApplicationPrivate::notify_helper (this=0x8e0f3a8, receiver=0xbfb004bc, e=0xbfaffc50) at kernel/qapplication.cpp:4300
#29 0x0618a9f7 in QApplication::notify (this=0x8e092c8, receiver=0xbfb004bc, e=0xbfaffc50) at kernel/qapplication.cpp:3865
#30 0x00aa7f2a in KApplication::notify (this=0x8e092c8, receiver=0xbfb004bc, event=0xbfaffc50) at ../../kdeui/kernel/kapplication.cpp:302
#31 0x010c1a3b in QCoreApplication::notifyInternal (this=0x8e092c8, receiver=0xbfb004bc, event=0xbfaffc50) at kernel/qcoreapplication.cpp:704
#32 0x06189952 in QCoreApplication::sendEvent (receiver=0xbfb004bc, event=0xbfaffc50, alienWidget=0x0, nativeWidget=0xbfb004bc, buttonDown=0x6ac7058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#33 QApplicationPrivate::sendMouseEvent (receiver=0xbfb004bc, event=0xbfaffc50, alienWidget=0x0, nativeWidget=0xbfb004bc, buttonDown=0x6ac7058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#34 0x062155cf in QETWidget::translateMouseEvent (this=0xbfb004bc, event=0xbfb0016c) at kernel/qapplication_x11.cpp:4302
#35 0x06214511 in QApplication::x11ProcessEvent (this=0x8e092c8, event=0xbfb0016c) at kernel/qapplication_x11.cpp:3379
#36 0x0624360a in x11EventSourceDispatch (s=0x8e120a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#37 0x012125e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#38 0x012162d8 in ?? () from /lib/libglib-2.0.so.0
#39 0x012164b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#40 0x010ed5d5 in QEventDispatcherGlib::processEvents (this=0x8e0f250, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#41 0x06243135 in QGuiEventDispatcherGlib::processEvents (this=0x8e0f250, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0x010c0059 in QEventLoop::processEvents (this=0xbfb00460, flags=) at kernel/qeventloop.cpp:149
#43 0x010c04aa in QEventLoop::exec (this=0xbfb00460, flags=...) at kernel/qeventloop.cpp:201
#44 0x06625dde in QMenu::exec (this=0xbfb004bc, p=..., action=0x0) at widgets/qmenu.cpp:2063
#45 0x03c43821 in ContextMenu::contextEvent (this=0x93257d0, event=0xbfb00e04) at ../../../../../plasma/generic/containmentactions/contextmenu/menu.cpp:139
#46 0x014dabe6 in Plasma::Containment::mousePressEvent (this=0x931ad40, event=0xbfb00e04) at ../../plasma/containment.cpp:577
#47 0x0680463a in QGraphicsItem::sceneEvent (this=0x931ad48, event=0xbfb00e04) at graphicsview/qgraphicsitem.cpp:6496
#48 0x06856057 in QGraphicsWidget::sceneEvent (this=0x931ad40, event=0xbfb00e04) at graphicsview/qgraphicswidget.cpp:1129
#49 0x06819d99 in QGraphicsScenePrivate::sendEvent (this=0x8e78db0, item=0x931ad48, event=0xbfb00e04) at graphicsview/qgraphicsscene.cpp:1181
#50 0x0681c26b in QGraphicsScenePrivate::sendMouseEvent (this=0x8e78db0, mouseEvent=0xbfb00e04) at graphicsview/qgraphicsscene.cpp:1255
#51 0x0682a9f2 in QGraphicsScenePrivate::mousePressEventHandler (this=0x8e78db0, mouseEvent=0xbfb00e04) at graphicsview/qgraphicsscene.cpp:1378
#52 0x0682b01d in QGraphicsScene::mousePressEvent (this=0x8fd9ca8, mouseEvent=0xbfb00e04) at graphicsview/qgraphicsscene.cpp:4003
#53 0x0682f6f4 in QGraphicsScene::event (this=0x8fd9ca8, event=0xbfb00e04) at graphicsview/qgraphicsscene.cpp:3395
#54 0x061834dc in QApplicationPrivate::notify_helper (this=0x8e0f3a8, receiver=0x8fd9ca8, e=0xbfb00e04) at kernel/qapplication.cpp:4300
#55 0x0618a05e in QApplication::notify (this=0x8e092c8, receiver=0x8fd9ca8, e=0xbfb00e04) at kernel/qapplication.cpp:3704
#56 0x00aa7f2a in KApplication::notify (this=0x8e092c8, receiver=0x8fd9ca8, event=0xbfb00e04) at ../../kdeui/kernel/kapplication.cpp:302
#57 0x010c1a3b in QCoreApplication::notifyInternal (this=0x8e092c8, receiver=0x8fd9ca8, event=0xbfb00e04) at kernel/qcoreapplication.cpp:704
#58 0x061842be in QCoreApplication::sendSpontaneousEvent (receiver=0x8fd9ca8, event=0x0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#59 qt_sendSpontaneousEvent (receiver=0x8fd9ca8, event=0x0) at kernel/qapplication.cpp:5279
#60 0x068514f5 in QGraphicsView::mousePressEvent (this=0x950add0, event=0xbfb01570) at graphicsview/qgraphicsview.cpp:3085
#61 0x061e17dc in QWidget::event (this=0x950add0, event=0xbfb01570) at kernel/qwidget.cpp:7994
#62 0x065ddfd3 in QFrame::event (this=0x950add0, e=0xbfb01570) at widgets/qframe.cpp:557
#63 0x06678382 in QAbstractScrollArea::viewportEvent (this=0x9871760, e=0x0) at widgets/qabstractscrollarea.cpp:1036
#64 0x0684e06b in QGraphicsView::viewportEvent (this=0x950add0, event=0xbfb01570) at graphicsview/qgraphicsview.cpp:2787
#65 0x0667ac65 in QAbstractScrollAreaPrivate::viewportEvent (this=0x94f7780, o=0x94d1728, e=0xbfb01570) at widgets/qabstractscrollarea_p.h:100
#66 QAbstractScrollAreaFilter::eventFilter (this=0x94f7780, o=0x94d1728, e=0xbfb01570) at widgets/qabstractscrollarea_p.h:116
#67 0x010c0cda in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8e0f3a8, receiver=0x94d1728, event=0xbfb01570) at kernel/qcoreapplication.cpp:819
#68 0x061834b9 in QApplicationPrivate::notify_helper (this=0x8e0f3a8, receiver=0x94d1728, e=0xbfb01570) at kernel/qapplication.cpp:4296
#69 0x0618a9f7 in QApplication::notify (this=0x8e092c8, receiver=0x94d1728, e=0xbfb01570) at kernel/qapplication.cpp:3865
#70 0x00aa7f2a in KApplication::notify (this=0x8e092c8, receiver=0x94d1728, event=0xbfb01570) at ../../kdeui/kernel/kapplication.cpp:302
#71 0x010c1a3b in QCoreApplication::notifyInternal (this=0x8e092c8, receiver=0x94d1728, event=0xbfb01570) at kernel/qcoreapplication.cpp:704
#72 0x06189952 in QCoreApplication::sendEvent (receiver=0x94d1728, event=0xbfb01570, alienWidget=0x94d1728, nativeWidget=0x950add0, buttonDown=0x6ac7058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#73 QApplicationPrivate::sendMouseEvent (receiver=0x94d1728, event=0xbfb01570, alienWidget=0x94d1728, nativeWidget=0x950add0, buttonDown=0x6ac7058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#74 0x06215088 in QETWidget::translateMouseEvent (this=0x950add0, event=0xbfb01a8c) at kernel/qapplication_x11.cpp:4368
#75 0x06214511 in QApplication::x11ProcessEvent (this=0x8e092c8, event=0xbfb01a8c) at kernel/qapplication_x11.cpp:3379
#76 0x0624360a in x11EventSourceDispatch (s=0x8e120a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#77 0x012125e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#78 0x012162d8 in ?? () from /lib/libglib-2.0.so.0
#79 0x012164b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#80 0x010ed5d5 in QEventDispatcherGlib::processEvents (this=0x8e0f250, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#81 0x06243135 in QGuiEventDispatcherGlib::processEvents (this=0x8e0f250, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#82 0x010c0059 in QEventLoop::processEvents (this=0xbfb01d84, flags=) at kernel/qeventloop.cpp:149
#83 0x010c04aa in QEventLoop::exec (this=0xbfb01d84, flags=...) at kernel/qeventloop.cpp:201
#84 0x010c469f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#85 0x06183577 in QApplication::exec () at kernel/qapplication.cpp:3579
#86 0x037b105e in kdemain (argc=1, argv=0x8dfdab0) at ../../../../plasma/desktop/shell/main.cpp:112
#87 0x0804e133 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8ddfb00 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051465 "0") at ../../kinit/kinit.cpp:717
#88 0x0804ec6d in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#89 0x0804f190 in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1402
#90 0x0804fe4f in main (argc=4, argv=0xbfb02834, envp=0xbfb02848) at ../../kinit/kinit.cpp:1845

Possible duplicates by query: bug 235707, bug 226012.

Reported using DrKonqi