Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-16-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Plasma goes into blank screen and then restarts. Crash reporting assistant appears.
Running kubuntu 9.10
kernel: Linux 2.6.31-16-generic #52-Ubuntu SMP Thu Dec 3 22:00:22 UTC 2009 i686 GNU/Linux
laptop toshiba satellite M100 series



 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb78ce700 (LWP 1761))]

Thread 2 (Thread 0xac873b70 (LWP 1762)):
#0  0x00812422 in __kernel_vsyscall ()
#1  0x001eee15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0079e78d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x00ad6e67 in QWaitConditionPrivate::wait (this=0x9c6de48, mutex=0x9c6de44, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x9c6de48, mutex=0x9c6de44, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x01de1922 in QHostInfoAgent::run (this=0x9c6de38) at kernel/qhostinfo.cpp:260
#6  0x00ad5e32 in QThreadPrivate::start (arg=0x9c6de38) at thread/qthread_unix.cpp:188
#7  0x001ea80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x007917ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb78ce700 (LWP 1761)):
[KCrash Handler]
#6  0x01aed14a in QGraphicsItem::parentItem (this=0x9eaf210) at graphicsview/qgraphicsitem.cpp:937
#7  0x01b590a7 in QGraphicsGridLayout::addItem (this=0x9e77850, item=0xacec0e0, row=181321944, column=166277344, rowSpan=1, columnSpan=1, alignment=...) at graphicsview/qgraphicsgridlayout.cpp:158
#8  0x025dc74a in TaskItemLayout::layoutItems (this=0x9e77850) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:370
#9  0x025dce2a in TaskItemLayout::insert (this=0x9e77850, index=0, item=0xa954ca8) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:125
#10 0x025dd00f in TaskItemLayout::addTaskItem (this=0x9e77850, item=0xa954ca8) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:82
#11 0x025e9fa2 in TaskGroupItem::itemAdded (this=0x9e930d8, groupableItem=0xaa9fb58) at ../../../../plasma/applets/tasks/taskgroupitem.cpp:477
#12 0x025ea627 in TaskGroupItem::qt_metacall (this=0x9e930d8, _c=QMetaObject::InvokeMetaMethod, _id=29, _a=0xbfb89308) at ./taskgroupitem.moc:113
#13 0x00bdc263 in QMetaObject::activate (sender=0x9a9c828, from_signal_index=21, to_signal_index=21, argv=0xbfb89308) at kernel/qobject.cpp:3113
#14 0x00bdcec2 in QMetaObject::activate (sender=0x9a9c828, m=0x44adbf4, local_signal_index=0, argv=0xbfb89308) at kernel/qobject.cpp:3187
#15 0x0449f433 in TaskManager::TaskGroup::itemAdded (this=0x9a9c828, _t1=0xaa9fb58) at ./taskgroup.moc:145
#16 0x0449fe8b in TaskManager::TaskGroup::add (this=0x9a9c828, item=0xaa9fb58) at ../../../libs/taskmanager/taskgroup.cpp:138
#17 0x04487052 in TaskManager::GroupManagerPrivate::addTask (this=0x9a9d678, task=) at ../../../libs/taskmanager/groupmanager.cpp:290
#18 0x04487a45 in TaskManager::GroupManagerPrivate::actuallyReloadTasks (this=0x9a9d678) at ../../../libs/taskmanager/groupmanager.cpp:155
#19 0x044893be in TaskManager::GroupManager::qt_metacall (this=0x9a9c300, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbfb8951c) at ./groupmanager.moc:108
#20 0x00bdc263 in QMetaObject::activate (sender=0x9a9d6b8, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#21 0x00bdcec2 in QMetaObject::activate (sender=0x9a9d6b8, m=0xcb7904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#22 0x00c16667 in QTimer::timeout (this=0x9a9d6b8) at .moc/release-shared/moc_qtimer.cpp:128
#23 0x00be19ae in QTimer::timerEvent (this=0x9a9d6b8, e=0xbfb899b0) at kernel/qtimer.cpp:261
#24 0x00bd63bf in QObject::event (this=0x9a9d6b8, e=0xbfb899b0) at kernel/qobject.cpp:1075
#25 0x014e9f54 in QApplicationPrivate::notify_helper (this=0x973ecb0, receiver=0x9a9d6b8, e=0xbfb899b0) at kernel/qapplication.cpp:4056
#26 0x014f167c in QApplication::notify (this=0x9717e38, receiver=0x9a9d6b8, e=0xbfb899b0) at kernel/qapplication.cpp:3603
#27 0x01209bfa in KApplication::notify (this=0x9717e38, receiver=0x9a9d6b8, event=0xbfb899b0) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x00bc66cb in QCoreApplication::notifyInternal (this=0x9717e38, receiver=0x9a9d6b8, event=0xbfb899b0) at kernel/qcoreapplication.cpp:610
#29 0x00bf37ce in QCoreApplication::sendEvent (this=0x9741684) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#30 QTimerInfoList::activateTimers (this=0x9741684) at kernel/qeventdispatcher_unix.cpp:572
#31 0x00bf10e0 in timerSourceDispatch (source=0x9741650) at kernel/qeventdispatcher_glib.cpp:165
#32 0x00167e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#33 0x0016b720 in ?? () from /lib/libglib-2.0.so.0
#34 0x0016b853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#35 0x00bf102c in QEventDispatcherGlib::processEvents (this=0x973eaa0, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#36 0x0158abe5 in QGuiEventDispatcherGlib::processEvents (this=0x973eaa0, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#37 0x00bc4c79 in QEventLoop::processEvents (this=0xbfb89c74, flags=) at kernel/qeventloop.cpp:149
#38 0x00bc50ca in QEventLoop::exec (this=0xbfb89c74, flags=...) at kernel/qeventloop.cpp:201
#39 0x00bc753f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#40 0x014e9dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#41 0x03aa480d in kdemain (argc=1, argv=0x96f81b0) at ../../../../plasma/shells/desktop/main.cpp:50
#42 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x96e1c18 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#43 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#44 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#45 0x0804fbaf in main (argc=2, argv=0xbfb8a4d4, envp=0xbfb8a4e0) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi