Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-14-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
just a random crash to plasma-desktop. plasma-desktop crashes on opening random number of applications

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 29962)]

Thread 3 (Thread 0x7fe5c98e8950 (LWP 29965)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007fe5ebf6ad19 in QWaitCondition::wait (this=0x27a65f0, mutex=0x27a65e8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007fe5eadf481c in QHostInfoAgent::run (this=0x27a65d0) at kernel/qhostinfo.cpp:260
#3  0x00007fe5ebf69d35 in QThreadPrivate::start (arg=0x27a65d0) at thread/qthread_unix.cpp:188
#4  0x00007fe5e7e633ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007fe5e8a47fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe5c3166950 (LWP 29966)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:217
#1  0x00007fe5ebf69785 in thread_sleep (ti=0x7fe5c3166020) at thread/qthread_unix.cpp:297
#2  0x00007fe5ebf698ee in QThread::msleep (msecs=50) at thread/qthread_unix.cpp:323
#3  0x00007fe5cba3966e in ?? () from /usr/lib/kde4/plasma_applet_custom_weather.so
#4  0x00007fe5ebf69d35 in QThreadPrivate::start (arg=0x28acfe0) at thread/qthread_unix.cpp:188
#5  0x00007fe5e7e633ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fe5e8a47fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe5ec526750 (LWP 29962)):
[KCrash Handler]
#5  AbstractTaskItem::basicPreferredSize (this=0x2112be0) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/tasks.h:92
#6  0x00007fe5ced06322 in TaskItemLayout::maximumRows (this=0x297b440) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskitemlayout.cpp:185
#7  0x00007fe5ced0e9c7 in TaskGroupItem::optimumCapacity (this=0x2a8af50) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskgroupitem.cpp:1224
#8  0x00007fe5ced01c50 in Tasks::adjustGroupingStrategy (this=0x2687490) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/tasks.cpp:241
#9  0x00007fe5ced01e68 in Tasks::constraintsEvent (this=0x2687490, constraints={i = -391518936}) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/tasks.cpp:165
#10 0x00007fe5e3977ed9 in Plasma::Applet::flushPendingConstraintsEvents (this=0x2687490) at /build/buildd/kde4libs-4.3.0/plasma/applet.cpp:1173
#11 0x00007fe5e3978525 in Plasma::Applet::timerEvent (this=0x2687490, event=<value optimized out>) at /build/buildd/kde4libs-4.3.0/plasma/applet.cpp:2120
#12 0x00007fe5ec063263 in QObject::event (this=0x2687490, e=0x7fe5e8a9e528) at kernel/qobject.cpp:1075
#13 0x00007fe5e9c1118b in QGraphicsWidget::event (this=0x2687490, event=0x7ffff4564e30) at graphicsview/qgraphicswidget.cpp:1340
#14 0x00007fe5e961ef4d in QApplicationPrivate::notify_helper (this=0x20ba430, receiver=0x2687490, e=0x7ffff4564e30) at kernel/qapplication.cpp:4056
#15 0x00007fe5e962718a in QApplication::notify (this=0x2079480, receiver=0x2687490, e=0x7ffff4564e30) at kernel/qapplication.cpp:4021
#16 0x00007fe5ea73171b in KApplication::notify (this=0x2079480, receiver=0x2687490, event=0x7ffff4564e30) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kapplication.cpp:302
#17 0x00007fe5ec0536ac in QCoreApplication::notifyInternal (this=0x2079480, receiver=0x2687490, event=0x7ffff4564e30) at kernel/qcoreapplication.cpp:610
#18 0x00007fe5ec080516 in QTimerInfoList::activateTimers (this=0x20bdd30) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#19 0x00007fe5ec07cb2d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#20 0x00007fe5e80b220a in IA__g_main_context_dispatch (context=0x20bc9f0) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814
#21 0x00007fe5e80b58e0 in g_main_context_iterate (context=0x20bc9f0, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448
#22 0x00007fe5e80b5a7c in IA__g_main_context_iteration (context=0x20bc9f0, may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511
#23 0x00007fe5ec07ca8f in QEventDispatcherGlib::processEvents (this=0x20b9d20, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#24 0x00007fe5e96b7bdf in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#25 0x00007fe5ec051f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -195669856}) at kernel/qeventloop.cpp:149
#26 0x00007fe5ec052314 in QEventLoop::exec (this=0x7ffff45650e0, flags={i = -195669776}) at kernel/qeventloop.cpp:201
#27 0x00007fe5ec0545e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#28 0x00007fe5dfe8e1eb in kdemain (argc=1, argv=0x206ba80) at /build/buildd/kdebase-workspace-4.3.0/plasma/shells/desktop/main.cpp:50
#29 0x0000000000407215 in launch (argc=1, _name=0x206e708 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x206e728 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a3a1 "0") at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:676
#30 0x0000000000407a38 in handle_launcher_request (sock=8, who=<value optimized out>) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1168
#31 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1361
#32 0x0000000000408b26 in main (argc=2, argv=0x7ffff4565f88, envp=0x7ffff4565fa0) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1788

This bug may be a duplicate of or related to bug 203004

Reported using DrKonqi