Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.0
Operating System: Linux 2.6.30-9-generic i686
Distribution: Ubuntu 9.04

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 13746)]

Thread 2 (Thread 0xace20b90 (LWP 16465)):
#0  0x00e47422 in __kernel_vsyscall ()
#1  0x008370e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x039d42ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x03c689b2 in QWaitCondition::wait (this=0x878b740, mutex=0x878b73c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0x00759152 in QHostInfoAgent::run (this=0x878b730) at kernel/qhostinfo.cpp:260
#5  0x03c6796e in QThreadPrivate::start (arg=0x878b730) at thread/qthread_unix.cpp:189
#6  0x008334ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0x039c549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7f21710 (LWP 13746)):
[KCrash Handler]
#6  AbstractTaskItem::basicPreferredSize (this=0x8ba8358) at /build/buildd/kdebase-workspace-4.2.96/plasma/applets/tasks/tasks.h:92
#7  0x040a55dc in TaskItemLayout::maximumRows (this=0x879f6d8) at /build/buildd/kdebase-workspace-4.2.96/plasma/applets/tasks/taskitemlayout.cpp:185
#8  0x040aee04 in TaskGroupItem::optimumCapacity (this=0x88b64b0) at /build/buildd/kdebase-workspace-4.2.96/plasma/applets/tasks/taskgroupitem.cpp:1224
#9  0x040a0398 in Tasks::adjustGroupingStrategy (this=0x85d2558) at /build/buildd/kdebase-workspace-4.2.96/plasma/applets/tasks/tasks.cpp:241
#10 0x040a062c in Tasks::constraintsEvent (this=0x85d2558, constraints={i = -1079611336}) at /build/buildd/kdebase-workspace-4.2.96/plasma/applets/tasks/tasks.cpp:165
#11 0x00a9828b in Plasma::Applet::flushPendingConstraintsEvents (this=0x85d2558) at /build/buildd/kde4libs-4.2.96/plasma/applet.cpp:1160
#12 0x00a98a18 in Plasma::Applet::timerEvent (this=0x85d2558, event=0xbfa6753c) at /build/buildd/kde4libs-4.2.96/plasma/applet.cpp:2104
#13 0x03d6c15f in QObject::event (this=0x85d2558, e=0xbfa6753c) at kernel/qobject.cpp:1082
#14 0x01988c77 in QGraphicsWidget::event (this=0x85d2558, event=0xbfa6753c) at graphicsview/qgraphicswidget.cpp:1317
#15 0x01305e9c in QApplicationPrivate::notify_helper (this=0x8244e20, receiver=0x85d2558, e=0xbfa6753c) at kernel/qapplication.cpp:4084
#16 0x0130e19e in QApplication::notify (this=0x82423f8, receiver=0x85d2558, e=0xbfa6753c) at kernel/qapplication.cpp:3631
#17 0x0100a4dd in KApplication::notify (this=0x82423f8, receiver=0x85d2558, event=0xbfa6753c) at /build/buildd/kde4libs-4.2.96/kdeui/kernel/kapplication.cpp:302
#18 0x03d5ba3b in QCoreApplication::notifyInternal (this=0x82423f8, receiver=0x85d2558, event=0xbfa6753c) at kernel/qcoreapplication.cpp:602
#19 0x03d8ad71 in QTimerInfoList::activateTimers (this=0x8247a34) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#20 0x03d874e0 in timerSourceDispatch (source=0x8247a00) at kernel/qeventdispatcher_glib.cpp:164
#21 0x01dccb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#22 0x01dd00eb in ?? () from /usr/lib/libglib-2.0.so.0
#23 0x01dd0268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#24 0x03d87438 in QEventDispatcherGlib::processEvents (this=0x822d4a0, flags={i = -1079609672}) at kernel/qeventdispatcher_glib.cpp:323
#25 0x013a7365 in QGuiEventDispatcherGlib::processEvents (this=0x822d4a0, flags={i = -1079609624}) at kernel/qguieventdispatcher_glib.cpp:202
#26 0x03d5a06a in QEventLoop::processEvents (this=0xbfa67760, flags={i = -1079609560}) at kernel/qeventloop.cpp:149
#27 0x03d5a4aa in QEventLoop::exec (this=0xbfa67760, flags={i = -1079609496}) at kernel/qeventloop.cpp:200
#28 0x03d5c959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#29 0x01305d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#30 0x0087c5d0 in kdemain (argc=1, argv=0xbfa67914) at /build/buildd/kdebase-workspace-4.2.96/plasma/shells/desktop/main.cpp:50
#31 0x08048712 in main (argc=) at /build/buildd/kdebase-workspace-4.2.96/obj-i486-linux-gnu/plasma/shells/desktop/plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 200096

Reported using DrKonqi