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 2.6.31-14-generic-pae i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Plasma crashed when I add "input method panel". This is not happened when I add other widgets.
At that time, I'm using Firefox and Quassel IRC.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77d9700 (LWP 1364))]

Thread 2 (Thread 0xac71fb70 (LWP 1367)):
#0  0x00fdb422 in __kernel_vsyscall ()
#1  0x00230e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0068b78d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x00b45e67 in QWaitConditionPrivate::wait (this=0x891bd90, mutex=0x891bd8c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x891bd90, mutex=0x891bd8c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x00f20922 in QHostInfoAgent::run (this=0x891bd80) at kernel/qhostinfo.cpp:260
#6  0x00b44e32 in QThreadPrivate::start (arg=0x891bd80) at thread/qthread_unix.cpp:188
#7  0x0022c80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x0067e7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb77d9700 (LWP 1364)):
[KCrash Handler]
#6  0x00740076 in ?? () from /usr/lib/libkdecore.so.5
#7  0x015e33ca in Plasma::ToolTipManagerPrivate::showToolTip (this=0x74006f) at ../../plasma/tooltipmanager.cpp:342
#8  0x015e3650 in Plasma::ToolTipManager::qt_metacall (this=0x86b3aa0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfd211cc) at ./tooltipmanager.moc:69
#9  0x00c4b263 in QMetaObject::activate (sender=0x86bb360, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#10 0x00c4bec2 in QMetaObject::activate (sender=0x86bb360, m=0xd26904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#11 0x00c85667 in QTimer::timeout (this=0x86bb360) at .moc/release-shared/moc_qtimer.cpp:128
#12 0x00c509ae in QTimer::timerEvent (this=0x86bb360, e=0xbfd21660) at kernel/qtimer.cpp:261
#13 0x00c453bf in QObject::event (this=0x86bb360, e=0xbfd21660) at kernel/qobject.cpp:1075
#14 0x02363f54 in QApplicationPrivate::notify_helper (this=0x85cbe20, receiver=0x86bb360, e=0xbfd21660) at kernel/qapplication.cpp:4056
#15 0x0236b67c in QApplication::notify (this=0x85a4f70, receiver=0x86bb360, e=0xbfd21660) at kernel/qapplication.cpp:3603
#16 0x011aebfa in KApplication::notify (this=0x85a4f70, receiver=0x86bb360, event=0xbfd21660) at ../../kdeui/kernel/kapplication.cpp:302
#17 0x00c356cb in QCoreApplication::notifyInternal (this=0x85a4f70, receiver=0x86bb360, event=0xbfd21660) at kernel/qcoreapplication.cpp:610
#18 0x00c627ce in QCoreApplication::sendEvent (this=0x85cea34) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#19 QTimerInfoList::activateTimers (this=0x85cea34) at kernel/qeventdispatcher_unix.cpp:572
#20 0x00c600e0 in timerSourceDispatch (source=0x85cea00) at kernel/qeventdispatcher_glib.cpp:165
#21 0x009a3e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#22 0x009a7720 in ?? () from /lib/libglib-2.0.so.0
#23 0x009a7853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#24 0x00c6002c in QEventDispatcherGlib::processEvents (this=0x85cbc10, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#25 0x02404be5 in QGuiEventDispatcherGlib::processEvents (this=0x85cbc10, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#26 0x00c33c79 in QEventLoop::processEvents (this=0xbfd21924, flags=) at kernel/qeventloop.cpp:149
#27 0x00c340ca in QEventLoop::exec (this=0xbfd21924, flags=...) at kernel/qeventloop.cpp:201
#28 0x00c3653f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#29 0x02363dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#30 0x05e7c80d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#31 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8569e50 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#32 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#33 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#34 0x0804fbaf in main (argc=2, argv=0xbfd22184, envp=0xbfd22190) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi