Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.3 (KDE 4.3.3)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-14-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Plasma crashed after changing the desktop apparence and locking widgets. Sorry :(

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb771a700 (LWP 2569))]

Thread 4 (Thread 0xac5f6b70 (LWP 2570)):
#0  0x00ac7422 in __kernel_vsyscall ()
#1  0x006c0e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0040a78d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x004d3e67 in QWaitConditionPrivate::wait (this=0x88503f0, mutex=0x88503ec, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x88503f0, mutex=0x88503ec, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x0089e922 in QHostInfoAgent::run (this=0x88503e0) at kernel/qhostinfo.cpp:260
#6  0x004d2e32 in QThreadPrivate::start (arg=0x88503e0) at thread/qthread_unix.cpp:188
#7  0x006bc80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x003fd7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa79e3b70 (LWP 2959)):
#0  0x00ac7422 in __kernel_vsyscall ()
#1  0x006c1142 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0040a7e4 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0x02cf19ff in ?? () from /usr/lib/libxine.so.1
#4  0x006bc80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0x003fd7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa8d17b70 (LWP 2963)):
#0  0x0047ee06 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0x005efbf3 in QTimerInfoList::getTime (this=0x8b2d88c, t=...) at kernel/qeventdispatcher_unix.cpp:339
#2  0x005efde1 in QTimerInfoList::updateCurrentTime (this=0x8b2d88c) at kernel/qeventdispatcher_unix.cpp:297
#3  0x005f088c in QTimerInfoList::timerWait (this=0x8b2d88c, tm=...) at kernel/qeventdispatcher_unix.cpp:420
#4  0x005ee210 in timerSourcePrepare (source=0x8b2d858, timeout=0xa8d170ec) at kernel/qeventdispatcher_glib.cpp:141
#5  0x00727f80 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#6  0x00728341 in ?? () from /lib/libglib-2.0.so.0
#7  0x00728853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#8  0x005ee067 in QEventDispatcherGlib::processEvents (this=0x9b1a8e0, flags=...) at kernel/qeventdispatcher_glib.cpp:329
#9  0x005c1c79 in QEventLoop::processEvents (this=0xa8d172b4, flags=) at kernel/qeventloop.cpp:149
#10 0x005c20ca in QEventLoop::exec (this=0xa8d172b4, flags=...) at kernel/qeventloop.cpp:201
#11 0x004cfb73 in QThread::exec (this=0x986d5e0) at thread/qthread.cpp:487
#12 0x02c8620a in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_xine.so
#13 0x004d2e32 in QThreadPrivate::start (arg=0x986d5e0) at thread/qthread_unix.cpp:188
#14 0x006bc80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#15 0x003fd7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb771a700 (LWP 2569)):
[KCrash Handler]
#6  0x000000cc in ?? ()
#7  0x04f604fa in Plasma::ToolTipManagerPrivate::showToolTip (this=0xcc) at ../../plasma/tooltipmanager.cpp:342
#8  0x04f60780 in Plasma::ToolTipManager::qt_metacall (this=0x830fb40, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfd4703c) at ./tooltipmanager.moc:69
#9  0x005d9263 in QMetaObject::activate (sender=0x84f5f28, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#10 0x005d9ec2 in QMetaObject::activate (sender=0x84f5f28, m=0x6b4904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#11 0x00613667 in QTimer::timeout (this=0x84f5f28) at .moc/release-shared/moc_qtimer.cpp:128
#12 0x005de9ae in QTimer::timerEvent (this=0x84f5f28, e=0xbfd474d0) at kernel/qtimer.cpp:261
#13 0x005d33bf in QObject::event (this=0x84f5f28, e=0xbfd474d0) at kernel/qobject.cpp:1075
#14 0x011b3f54 in QApplicationPrivate::notify_helper (this=0x8246560, receiver=0x84f5f28, e=0xbfd474d0) at kernel/qapplication.cpp:4056
#15 0x011bb67c in QApplication::notify (this=0x821f6d0, receiver=0x84f5f28, e=0xbfd474d0) at kernel/qapplication.cpp:3603
#16 0x070d914a in KApplication::notify (this=0x821f6d0, receiver=0x84f5f28, event=0xbfd474d0) at ../../kdeui/kernel/kapplication.cpp:302
#17 0x005c36cb in QCoreApplication::notifyInternal (this=0x821f6d0, receiver=0x84f5f28, event=0xbfd474d0) at kernel/qcoreapplication.cpp:610
#18 0x005f07ce in QCoreApplication::sendEvent (this=0x8249134) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#19 QTimerInfoList::activateTimers (this=0x8249134) at kernel/qeventdispatcher_unix.cpp:572
#20 0x005ee0e0 in timerSourceDispatch (source=0x8249100) at kernel/qeventdispatcher_glib.cpp:165
#21 0x00724e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#22 0x00728720 in ?? () from /lib/libglib-2.0.so.0
#23 0x00728853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#24 0x005ee067 in QEventDispatcherGlib::processEvents (this=0x8246350, flags=...) at kernel/qeventdispatcher_glib.cpp:329
#25 0x01254be5 in QGuiEventDispatcherGlib::processEvents (this=0x8246350, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#26 0x005c1c79 in QEventLoop::processEvents (this=0xbfd47794, flags=) at kernel/qeventloop.cpp:149
#27 0x005c20ca in QEventLoop::exec (this=0xbfd47794, flags=...) at kernel/qeventloop.cpp:201
#28 0x005c453f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#29 0x011b3dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#30 0x0220b80d in kdemain (argc=1, argv=0x820b1b0) at ../../../../plasma/shells/desktop/main.cpp:50
#31 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x81e6270 "", 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=0xbfd47ff4, envp=0xbfd48000) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi