Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.3 (KDE 4.4.3)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-22-generic-pae i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
I was demonstrating some of KDE's features to a friend using Team Viewer.
I mapped the upper-left corner to 'Show Dashboard'.

This was working fine showing and hiding the dashboard (minus that sometimes it didn't take focus upon showing).

It eventually crashed, I am unsure as to the exact instance it occurred.

I had 4 active widgets; pager, comic strip, calculator, and dictionary.

I have 4 virtual desktops with a unique activity per v-desktop

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb551aaa0 (LWP 15366))]

Thread 8 (Thread 0xa54d6b70 (LWP 15367)):
#0  0xb594fe16 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0xb6c376fb in qt_gettime () at kernel/qcore_unix.cpp:111
#2  0xb6c3c825 in QTimerInfoList::updateCurrentTime (this=0xa4b01a34) at kernel/qeventdispatcher_unix.cpp:340
#3  0xb6c3c86a in QTimerInfoList::timerWait (this=0xa4b01a34, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#4  0xb6c3a818 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xa54d60cc) at kernel/qeventdispatcher_glib.cpp:136
#5  0xb6c3a8a5 in timerSourcePrepare (source=0x0, timeout=0xb5953ff4) at kernel/qeventdispatcher_glib.cpp:169
#6  0xb58c0aca in g_main_context_prepare () from /lib/libglib-2.0.so.0
#7  0xb58c0ee9 in ?? () from /lib/libglib-2.0.so.0
#8  0xb58c14b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#9  0xb6c3a60f in QEventDispatcherGlib::processEvents (this=0xa4b00468, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#10 0xb6c0d059 in QEventLoop::processEvents (this=0xa54d6290, flags=) at kernel/qeventloop.cpp:149
#11 0xb6c0d4aa in QEventLoop::exec (this=0xa54d6290, flags=...) at kernel/qeventloop.cpp:201
#12 0xb6b095a8 in QThread::exec (this=0x97e6870) at thread/qthread.cpp:487
#13 0xb6becc1b in QInotifyFileSystemWatcherEngine::run (this=0x97e6870) at io/qfilesystemwatcher_inotify.cpp:248
#14 0xb6b0c32e in QThreadPrivate::start (arg=0x97e6870) at thread/qthread_unix.cpp:248
#15 0xb6a7b96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0xb5e76a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 7 (Thread 0xa4affb70 (LWP 16970)):
#0  0xb7718430 in __kernel_vsyscall ()
#1  0xb6a80015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6b0d287 in QWaitConditionPrivate::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0xb409c870 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9691f28, th=0x92709d8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0xb409f38c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9692908, th=0x92709d8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0xb409b27b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9691f28, th=0x92709d8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0xb409f482 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9692908, th=0x92709d8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0xb409c4d3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9691f28, th=0x92709d8, previous=0xa06e3b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0xb409d51e in ThreadWeaver::ThreadRunHelper::run (this=0xa4aff2f4, parent=0x9691f28, th=0x92709d8) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0xb409dc3b in ThreadWeaver::Thread::run (this=0x92709d8) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0xb6b0c32e in QThreadPrivate::start (arg=0x92709d8) at thread/qthread_unix.cpp:248
#12 0xb6a7b96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#13 0xb5e76a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 6 (Thread 0xa42feb70 (LWP 16971)):
#0  0xb7718430 in __kernel_vsyscall ()
#1  0xb6a80015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6b0d287 in QWaitConditionPrivate::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0xb409c870 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9691f28, th=0x9fc02b8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0xb409f38c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9692908, th=0x9fc02b8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0xb409b27b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9691f28, th=0x9fc02b8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0xb409f482 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9692908, th=0x9fc02b8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0xb409c4d3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9691f28, th=0x9fc02b8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0xb409d51e in ThreadWeaver::ThreadRunHelper::run (this=0xa42fe2f4, parent=0x9691f28, th=0x9fc02b8) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0xb409dc3b in ThreadWeaver::Thread::run (this=0x9fc02b8) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0xb6b0c32e in QThreadPrivate::start (arg=0x9fc02b8) at thread/qthread_unix.cpp:248
#12 0xb6a7b96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#13 0xb5e76a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (Thread 0xa2704b70 (LWP 16972)):
#0  0xb7718430 in __kernel_vsyscall ()
#1  0xb6a80015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6b0d287 in QWaitConditionPrivate::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0xb409c870 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9691f28, th=0x9f13b10) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0xb409f38c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9692908, th=0x9f13b10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0xb409b27b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9691f28, th=0x9f13b10) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0xb409f482 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9692908, th=0x9f13b10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0xb409c4d3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9691f28, th=0x9f13b10, previous=0xa0358d8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0xb409d51e in ThreadWeaver::ThreadRunHelper::run (this=0xa27042f4, parent=0x9691f28, th=0x9f13b10) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0xb409dc3b in ThreadWeaver::Thread::run (this=0x9f13b10) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0xb6b0c32e in QThreadPrivate::start (arg=0x9f13b10) at thread/qthread_unix.cpp:248
#12 0xb6a7b96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#13 0xb5e76a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xa1f03b70 (LWP 16973)):
#0  0xb7718430 in __kernel_vsyscall ()
#1  0xb6a80015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6b0d287 in QWaitConditionPrivate::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9691f40, mutex=0x9690c78, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0xb409c870 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9691f28, th=0x9829bc8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0xb409f38c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9692908, th=0x9829bc8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0xb409b27b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9691f28, th=0x9829bc8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0xb409f482 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9692908, th=0x9829bc8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0xb409c4d3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9691f28, th=0x9829bc8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0xb409d51e in ThreadWeaver::ThreadRunHelper::run (this=0xa1f032f4, parent=0x9691f28, th=0x9829bc8) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0xb409dc3b in ThreadWeaver::Thread::run (this=0x9829bc8) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0xb6b0c32e in QThreadPrivate::start (arg=0x9829bc8) at thread/qthread_unix.cpp:248
#12 0xb6a7b96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#13 0xb5e76a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa11b4b70 (LWP 17233)):
#0  0xb7718430 in __kernel_vsyscall ()
#1  0xb6a80015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb433a9d7 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0xb433aa21 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0xb6a7b96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb5e76a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0x9dd62b70 (LWP 17524)):
#0  0xb7718430 in __kernel_vsyscall ()
#1  0xb6a80015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb2095c97 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb216f1a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#3  0xb2095ce1 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb216f1a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#4  0xb6a7b96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb5e76a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb551aaa0 (LWP 15366)):
[KCrash Handler]
#6  QGraphicsItem::pos (this=0x59) at graphicsview/qgraphicsitem.cpp:3419
#7  0xb1efcefa in AppletsListWidget::itemPosition (this=0xadd9dd0, i=12) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:691
#8  0xb1efd295 in AppletsListWidget::manageArrows (this=0xadd9dd0) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:636
#9  0xb1efe56a in AppletsListWidget::eventFilter (this=0xadd9dd0, obj=0xa295c60, event=0xbfcab3a0) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:172
#10 0xb6c0dcda in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x920d138, receiver=0xa295c60, event=0xbfcab3a0) at kernel/qcoreapplication.cpp:819
#11 0xb612f4b9 in QApplicationPrivate::notify_helper (this=0x920d138, receiver=0xa295c60, e=0xbfcab3a0) at kernel/qapplication.cpp:4296
#12 0xb613605e in QApplication::notify (this=0x9206f50, receiver=0xa295c60, e=0xbfcab3a0) at kernel/qapplication.cpp:3704
#13 0xb6f03f5a in KApplication::notify (this=0x9206f50, receiver=0xa295c60, event=0xbfcab3a0) at ../../kdeui/kernel/kapplication.cpp:302
#14 0xb6c0ea3b in QCoreApplication::notifyInternal (this=0x9206f50, receiver=0xa295c60, event=0xbfcab3a0) at kernel/qcoreapplication.cpp:704
#15 0xb68052d4 in QCoreApplication::sendEvent (this=0xa295c60, rect=...) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#16 QGraphicsWidget::setGeometry (this=0xa295c60, rect=...) at graphicsview/qgraphicswidget.cpp:394
#17 0xb6802101 in QGraphicsWidget::resize (this=0xa295c60, size=...) at graphicsview/qgraphicswidget.cpp:309
#18 0xb68025bd in QGraphicsWidget::adjustSize (this=0xa295c60) at graphicsview/qgraphicswidget.cpp:807
#19 0xb1efebed in AppletsListWidget::updateList (this=0xadd9dd0) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:461
#20 0xb1edd793 in AppletsListWidget::qt_metacall (this=0xadd9dd0, _c=QMetaObject::InvokeMetaMethod, _id=17, _a=0xbfcab6dc) at moc_appletslist.cpp:109
#21 0xb6c13c9a in QMetaObject::metacall (object=0xadd9dd0, cl=185880928, idx=17, argv=0xbfcab6dc) at kernel/qmetaobject.cpp:237
#22 0xb6c223d5 in QMetaObject::activate (sender=0xa24bc10, m=0xb1f0c3f0, local_signal_index=1, argv=0x0) at kernel/qobject.cpp:3293
#23 0xb1edcce7 in KCategorizedItemsViewModels::DefaultItemFilterProxyModel::filterChanged (this=0xa24bc10) at moc_kcategorizeditemsviewmodels_p.cpp:94
#24 0xb1eee9f1 in KCategorizedItemsViewModels::DefaultItemFilterProxyModel::setFilter (this=0xa24bc10, filter=...)
    at ../../../libs/plasmagenericshell/widgetsexplorer/kcategorizeditemsviewmodels.cpp:168
#25 0xb1f00b8f in AppletsListWidget::timerEvent (this=0xadd9dd0, event=0xbfcabd00) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:281
#26 0xb6c1f254 in QObject::event (this=0xadd9dd0, e=0x59) at kernel/qobject.cpp:1212
#27 0xb6801cf4 in QGraphicsWidget::event (this=0xadd9dd0, event=0xbfcabd00) at graphicsview/qgraphicswidget.cpp:1361
#28 0xb612f4dc in QApplicationPrivate::notify_helper (this=0x920d138, receiver=0xadd9dd0, e=0xbfcabd00) at kernel/qapplication.cpp:4300
#29 0xb613605e in QApplication::notify (this=0x9206f50, receiver=0xadd9dd0, e=0xbfcabd00) at kernel/qapplication.cpp:3704
#30 0xb6f03f5a in KApplication::notify (this=0x9206f50, receiver=0xadd9dd0, event=0xbfcabd00) at ../../kdeui/kernel/kapplication.cpp:302
#31 0xb6c0ea3b in QCoreApplication::notifyInternal (this=0x9206f50, receiver=0xadd9dd0, event=0xbfcabd00) at kernel/qcoreapplication.cpp:704
#32 0xb6c3dd66 in QCoreApplication::sendEvent (this=0x920f994) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#33 QTimerInfoList::activateTimers (this=0x920f994) at kernel/qeventdispatcher_unix.cpp:603
#34 0xb6c3a917 in timerSourceDispatch (source=0x920fe00) at kernel/qeventdispatcher_glib.cpp:184
#35 idleTimerSourceDispatch (source=0x920fe00) at kernel/qeventdispatcher_glib.cpp:231
#36 0xb58bd5e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#37 0xb58c12d8 in ?? () from /lib/libglib-2.0.so.0
#38 0xb58c14b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#39 0xb6c3a5d5 in QEventDispatcherGlib::processEvents (this=0x920ce08, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#40 0xb61ef135 in QGuiEventDispatcherGlib::processEvents (this=0x920ce08, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0xb6c0d059 in QEventLoop::processEvents (this=0xbfcabfc4, flags=) at kernel/qeventloop.cpp:149
#42 0xb6c0d4aa in QEventLoop::exec (this=0xbfcabfc4, flags=...) at kernel/qeventloop.cpp:201
#43 0xb6c1169f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#44 0xb612f577 in QApplication::exec () at kernel/qapplication.cpp:3579
#45 0xb225f05e in kdemain (argc=1, argv=0x91fb620) at ../../../../plasma/desktop/shell/main.cpp:112
#46 0x0804e133 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x91dd018 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051465 "0") at ../../kinit/kinit.cpp:717
#47 0x0804ec6d in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#48 0x0804f190 in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1402
#49 0x0804fe4f in main (argc=4, argv=0xbfcaca74, envp=0xbfcaca88) at ../../kinit/kinit.cpp:1845

This bug may be a duplicate of or related to bug 224593.

Possible duplicates by query: bug 236947, bug 236709, bug 236591, bug 235959, bug 235084.

Reported using DrKonqi