Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.32-24-generic-pae i686
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
Every session Started the screen got black and then the error appeared. This error is shown every time without exception. The desktop automatically show correctly again without  my intervention after some seconds. 

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb552baa0 (LWP 1922))]

Thread 2 (Thread 0xa46adb70 (LWP 1925)):
#0  0xb5960e16 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0xb6c48f5b in qt_gettime () at kernel/qcore_unix.cpp:111
#2  0xb6c4e085 in QTimerInfoList::updateCurrentTime (this=0xa3d00d34) at kernel/qeventdispatcher_unix.cpp:340
#3  0xb6c4e0ca in QTimerInfoList::timerWait (this=0xa3d00d34, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#4  0xb6c4c078 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xa46ad0cc) at kernel/qeventdispatcher_glib.cpp:136
#5  0xb6c4c105 in timerSourcePrepare (source=0x0, timeout=0xb5964ff4) at kernel/qeventdispatcher_glib.cpp:169
#6  0xb58d1aca in g_main_context_prepare () from /lib/libglib-2.0.so.0
#7  0xb58d1ee9 in ?? () from /lib/libglib-2.0.so.0
#8  0xb58d24b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#9  0xb6c4be6f in QEventDispatcherGlib::processEvents (this=0x8e30098, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#10 0xb6c1e759 in QEventLoop::processEvents (this=0xa46ad290, flags=) at kernel/qeventloop.cpp:149
#11 0xb6c1ebaa in QEventLoop::exec (this=0xa46ad290, flags=...) at kernel/qeventloop.cpp:201
#12 0xb6b1ffc9 in QThread::exec (this=0x8e2e608) at thread/qthread.cpp:487
#13 0xb6bfe1db in QInotifyFileSystemWatcherEngine::run (this=0x8e2e608) at io/qfilesystemwatcher_inotify.cpp:248
#14 0xb6b2297e in QThreadPrivate::start (arg=0x8e2e608) at thread/qthread_unix.cpp:248
#15 0xb6a9396e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0xb5e8ba4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb552baa0 (LWP 1922)):
[KCrash Handler]
#6  TaskManager::Task::icon (this=0x0, width=32, height=32, allowResize=true) at ../../../libs/taskmanager/task.cpp:406
#7  0xa69974ca in ?? () from /usr/lib/kde4/plasma_applet_daisy.so
#8  0xa699eb63 in ?? () from /usr/lib/kde4/plasma_applet_daisy.so
#9  0xb6c2547a in QMetaObject::metacall (object=0x8c2cd80, cl=QMetaObject::InvokeMetaMethod, idx=-1075512780, argv=0xbfe4fa38) at kernel/qmetaobject.cpp:237
#10 0xb6c33fbb in QMetaObject::activate (sender=0x88dd138, m=0xb70e70ec, local_signal_index=9, argv=0xbfe4fb94) at kernel/qobject.cpp:3295
#11 0xb7074999 in KWindowSystem::windowChanged (this=0x88dd138, _t1=39845927, _t2=0xbfe4fbf4) at ./kwindowsystem.moc:178
#12 0xb7077a96 in KWindowSystemPrivate::x11Event (this=0x8931b70, ev=0xbfe500cc) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:184
#13 0xb6f16ab6 in KAppX11HackWidget::publicx11Event (this=0x8660be8, _event=0xbfe500cc) at ../../kdeui/kernel/kapplication.cpp:903
#14 KApplication::x11EventFilter (this=0x8660be8, _event=0xbfe500cc) at ../../kdeui/kernel/kapplication.cpp:953
#15 0xb228300a in PlasmaApp::x11EventFilter (this=0x8660be8, event=0xbfe500cc) at ../../../../plasma/desktop/shell/plasmaapp.cpp:600
#16 0xb61c5320 in qt_x11EventFilter (ev=0xbfe500cc) at kernel/qapplication_x11.cpp:409
#17 0xb61d4b60 in QApplication::x11ProcessEvent (this=0x8660be8, event=0xbfe500cc) at kernel/qapplication_x11.cpp:3243
#18 0xb62052ea in x11EventSourceDispatch (s=0x86697b0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#19 0xb58ce5e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#20 0xb58d22d8 in ?? () from /lib/libglib-2.0.so.0
#21 0xb58d24b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#22 0xb6c4be35 in QEventDispatcherGlib::processEvents (this=0x8666e78, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#23 0xb6204e15 in QGuiEventDispatcherGlib::processEvents (this=0x8666e78, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0xb6c1e759 in QEventLoop::processEvents (this=0xbfe503c4, flags=) at kernel/qeventloop.cpp:149
#25 0xb6c1ebaa in QEventLoop::exec (this=0xbfe503c4, flags=...) at kernel/qeventloop.cpp:201
#26 0xb6c23e3f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#27 0xb6144f27 in QApplication::exec () at kernel/qapplication.cpp:3581
#28 0xb226f05e in kdemain (argc=1, argv=0x8655158) at ../../../../plasma/desktop/shell/main.cpp:112
#29 0x0804e133 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8658070 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051465 "0") at ../../kinit/kinit.cpp:717
#30 0x0804ec6d in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#31 0x0804f190 in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1402
#32 0x0804fe4f in main (argc=4, argv=0xbfe50e74, envp=0xbfe50e88) at ../../kinit/kinit.cpp:1845

Possible duplicates by query: bug 248454, bug 248328, bug 245502, bug 244675, bug 241067.

Reported using DrKonqi