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 2.6.31-19-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
the widget crashed while I switch the tabs to see its news, events, requests..;
This happend occationally not everytime I switch those tabs.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f02a0784750 (LWP 1830))]

Thread 2 (Thread 0x7f027c15f910 (LWP 1831)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f02a01c64fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x2e21e28, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2e21e28, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f029c5fd78c in QHostInfoAgent::run (this=0x2e21e10) at kernel/qhostinfo.cpp:260
#4  0x00007f02a01c5445 in QThreadPrivate::start (arg=0x2e21e10) at thread/qthread_unix.cpp:188
#5  0x00007f029cf3ba04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f029db1b80d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f02a0784750 (LWP 1830)):
[KCrash Handler]
#5  0x00007f029e7ee207 in QGraphicsItem::update (this=0x26113d0, rect=...) at graphicsview/qgraphicsitem.cpp:3975
#6  0x00007f027ed4add2 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtGui.so
#7  0x00007f027fb09cf4 in call_function (f=0x2ebf560, throwflag=<value optimized out>) at ../Python/ceval.c:3706
#8  PyEval_EvalFrameEx (f=0x2ebf560, throwflag=<value optimized out>) at ../Python/ceval.c:2389
#9  0x00007f027fb0b975 in PyEval_EvalCodeEx (co=0x2a683f0, globals=<value optimized out>, locals=<value optimized out>, args=0x1, argcount=<value optimized out>, kws=<value optimized out>, 
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2968
#10 0x00007f027fa93e80 in function_call (func=0x30789b0, arg=0x2a5e910, kw=0x0) at ../Objects/funcobject.c:524
#11 0x00007f027fa67e53 in PyObject_Call (func=0x30789b0, arg=0x7fffcb4a9c10, kw=0x7f027feb8008) at ../Objects/abstract.c:2492
#12 0x00007f027fa7864f in instancemethod_call (func=0x30789b0, arg=0x2a5e910, kw=0x0) at ../Objects/classobject.c:2579
#13 0x00007f027fa67e53 in PyObject_Call (func=0x269e8c0, arg=0x7fffcb4a9c10, kw=0x7f027feb8008) at ../Objects/abstract.c:2492
#14 0x00007f027fb03e43 in PyEval_CallObjectWithKeywords (func=0x269e8c0, arg=0x2614050, kw=0x7f027feb8008) at ../Python/ceval.c:3575
#15 0x00007f027f255678 in sip_api_invoke_slot () from /usr/lib/pymodules/python2.6/sip.so
#16 0x00007f027f593846 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#17 0x00007f027f59395c in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#18 0x00007f027f593a1a in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#19 0x00007f02a02c0ddc in QMetaObject::activate (sender=0x2eca020, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#20 0x00007f027f4eec75 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#21 0x00007f02a02bad83 in QObject::event (this=0x2eca020, e=0x7fffcb4a9c10) at kernel/qobject.cpp:1075
#22 0x00007f027f4eec13 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#23 0x00007f029e25befc in QApplicationPrivate::notify_helper (this=0x1eb7fd0, receiver=0x2eca020, e=0x7fffcb4aaaa0) at kernel/qapplication.cpp:4056
#24 0x00007f029e2631ce in QApplication::notify (this=0x1eaedf0, receiver=0x2eca020, e=0x7fffcb4aaaa0) at kernel/qapplication.cpp:4021
#25 0x00007f029ee92ab6 in KApplication::notify (this=0x1eaedf0, receiver=0x2eca020, event=0x7fffcb4aaaa0) at ../../kdeui/kernel/kapplication.cpp:302
#26 0x00007f02a02abc2c in QCoreApplication::notifyInternal (this=0x1eaedf0, receiver=0x2eca020, event=0x7fffcb4aaaa0) at kernel/qcoreapplication.cpp:610
#27 0x00007f02a02d6862 in QCoreApplication::sendEvent (this=0x1ebb440) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#28 QTimerInfoList::activateTimers (this=0x1ebb440) at kernel/qeventdispatcher_unix.cpp:572
#29 0x00007f02a02d425d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#30 0x00007f029d18cbce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#31 0x00007f029d190598 in ?? () from /lib/libglib-2.0.so.0
#32 0x00007f029d1906c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#33 0x00007f02a02d41a6 in QEventDispatcherGlib::processEvents (this=0x1e2b040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#34 0x00007f029e2f04be in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#35 0x00007f02a02aa532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#36 0x00007f02a02aa904 in QEventLoop::exec (this=0x7fffcb4aad40, flags=) at kernel/qeventloop.cpp:201
#37 0x00007f02a02acab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#38 0x00007f029462b4cf in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/shells/desktop/main.cpp:50
#39 0x0000000000406da8 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a299 "0") at ../../kinit/kinit.cpp:677
#40 0x0000000000407aa0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#41 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#42 0x0000000000408bb2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793
The current source language is "auto; currently asm".
The current source language is "auto; currently c".

Reported using DrKonqi