Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I was applying the form when my desktop suddenly went black.

-- Backtrace:
Application: Plasma bureaublad-shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f44e730e7a0 (LWP 1638))]

Thread 3 (Thread 0x7f44c05da700 (LWP 1639)):
#0  0x00007f44e3dd36c3 in postEventSourcePrepare (s=0x29b56f0, timeout=0x7f44c05d9c1c) at kernel/qeventdispatcher_glib.cpp:261
#1  0x00007f44db16bff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f44db16cdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f44db16d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f44e3dd3f3e in QEventDispatcherGlib::processEvents (this=0x29b5b60, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f44e3da7cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f44e3da7ef7 in QEventLoop::exec (this=0x7f44c05d9db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f44e3cbf27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f44e3d8acbf in QInotifyFileSystemWatcherEngine::run (this=0x29b5000) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f44e3cc1d05 in QThreadPrivate::start (arg=0x29b5000) at thread/qthread_unix.cpp:331
#10 0x00007f44dbc79efc in start_thread (arg=0x7f44c05da700) at pthread_create.c:304
#11 0x00007f44e6bee89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f44bd6c2700 (LWP 1642)):
#0  0x00007ffff0dff7c6 in ?? ()
#1  0x00007f44db42207b in __GI_clock_gettime (clock_id=1, tp=0x7f44bd6c1b20) at ../sysdeps/unix/clock_gettime.c:100
#2  0x00007f44e3d12074 in do_gettime (frac=0x7f44bd6c1b38, sec=0x7f44bd6c1b30) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f44e3dd46ed in QTimerInfoList::updateCurrentTime (this=0x7f44b8003b50) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007f44e3dd4a33 in QTimerInfoList::timerWait (this=0x7f44b8003b50, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007f44e3dd344c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f44bd6c1c1c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f44e3dd34f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f44db16bff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f44db16cdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f44db16d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f44e3dd3f3e in QEventDispatcherGlib::processEvents (this=0x2c4cd90, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007f44e3da7cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f44e3da7ef7 in QEventLoop::exec (this=0x7f44bd6c1db0, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007f44e3cbf27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#15 0x00007f44e3d8acbf in QInotifyFileSystemWatcherEngine::run (this=0x2cbebe0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f44e3cc1d05 in QThreadPrivate::start (arg=0x2cbebe0) at thread/qthread_unix.cpp:331
#17 0x00007f44dbc79efc in start_thread (arg=0x7f44bd6c2700) at pthread_create.c:304
#18 0x00007f44e6bee89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f44e730e7a0 (LWP 1638)):
[KCrash Handler]
#6  KWindowInfo::valid (this=0x7300610074f050, withdrawn_is_valid=true) at ../../kdeui/windowmanagement/kwindowinfo_x11.cpp:133
#7  0x00007f44ca147466 in TaskManager::Task::isOnCurrentDesktop (this=0x2088660) at ../../../libs/taskmanager/task.cpp:211
#8  0x00007f44b524bc24 in TaskSource::updateDesktop (this=0x3fd1630, desktop=<optimized out>) at ../../../../../plasma/generic/dataengines/tasks/tasksource.cpp:161
#9  0x00007f44b524bf83 in TaskSource::qt_metacall (this=0x3fd1630, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7ffff0db8880) at ./tasksource.moc:82
#10 0x00007f44e3dbbeba in QMetaObject::activate (sender=0x27b2f60, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffff0db8880) at kernel/qobject.cpp:3278
#11 0x00007f44ca153681 in TaskManager::TaskManager::desktopChanged (this=<optimized out>, _t1=3) at ./taskmanager.moc:200
#12 0x00007f44ca1551c7 in TaskManager::TaskManager::qt_metacall (this=0x27b2f60, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0x7ffff0db8a50) at ./taskmanager.moc:127
#13 0x00007f44e3dbbeba in QMetaObject::activate (sender=0x1ee8ab0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffff0db8a50) at kernel/qobject.cpp:3278
#14 0x00007f44e4b8dd9e in KWindowSystem::currentDesktopChanged (this=<optimized out>, _t1=3) at ./kwindowsystem.moc:122
#15 0x00007f44e4b90293 in KWindowSystemPrivate::x11Event (this=0x1fd1de0, ev=0x7ffff0db8b60) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:175
#16 0x00007f44e4a800a6 in publicX11Event (e=0x7ffff0db8b60, this=<optimized out>) at ../../kdeui/kernel/ksystemeventfilter.cpp:43
#17 KSystemEventFilterPrivate::filterEvent (this=0x1ee86f0, message=0x7ffff0db8b60) at ../../kdeui/kernel/ksystemeventfilter.cpp:102
#18 0x00007f44e3201388 in x11EventSourceDispatch (s=0x1ee1330, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:143
#19 0x00007f44db16ca5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f44db16d258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f44db16d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f44e3dd3ed6 in QEventDispatcherGlib::processEvents (this=0x1e60f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#23 0x00007f44e320107e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f44e3da7cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f44e3da7ef7 in QEventLoop::exec (this=0x7ffff0db8f30, flags=...) at kernel/qeventloop.cpp:201
#26 0x00007f44e3dac789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#27 0x00007f44e6eed1a3 in kdemain (argc=1, argv=0x7ffff0db9318) at ../../../../plasma/desktop/shell/main.cpp:120
#28 0x00007f44e6b2e30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7ffff0db9318, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff0db9308) at libc-start.c:226
#29 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289611, bug 289461, bug 286353.

Reported using DrKonqi