Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic-pae i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:

I can't shut down my computer
I can't log out , but I can use my computer

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb294bad0 (LWP 1493))]

Thread 4 (Thread 0xa9cffb70 (LWP 1502)):
#0  0xb374dd41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb6667dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb67344f2 in updateCurrentTime (this=0x9791a44, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0x9791a44, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb6732d32 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xa9cff0cc) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb6732dcd in timerSourcePrepare (source=0x9791a10, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb36b2fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb36b3e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb36b4524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb6733577 in QEventDispatcherGlib::processEvents (this=0x978dd28, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb6705289 in QEventLoop::processEvents (this=0xa9cff280, flags=...) at kernel/qeventloop.cpp:149
#12 0xb6705522 in QEventLoop::exec (this=0xa9cff280, flags=...) at kernel/qeventloop.cpp:201
#13 0xb660f2a0 in QThread::exec (this=0x978d6b8) at thread/qthread.cpp:492
#14 0xb66e6fdb in QInotifyFileSystemWatcherEngine::run (this=0x978d6b8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb6611da2 in QThreadPrivate::start (arg=0x978d6b8) at thread/qthread_unix.cpp:320
#16 0xb379be99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb770d73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa8588b70 (LWP 1507)):
#0  0xb379f7a4 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb771b656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb36b3ff9 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb36b4524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb6733577 in QEventDispatcherGlib::processEvents (this=0x981b8f8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0xb6705289 in QEventLoop::processEvents (this=0xa8588280, flags=...) at kernel/qeventloop.cpp:149
#6  0xb6705522 in QEventLoop::exec (this=0xa8588280, flags=...) at kernel/qeventloop.cpp:201
#7  0xb660f2a0 in QThread::exec (this=0x97d1d68) at thread/qthread.cpp:492
#8  0xb66e6fdb in QInotifyFileSystemWatcherEngine::run (this=0x97d1d68) at io/qfilesystemwatcher_inotify.cpp:248
#9  0xb6611da2 in QThreadPrivate::start (arg=0x97d1d68) at thread/qthread_unix.cpp:320
#10 0xb379be99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0xb770d73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa6b9cb70 (LWP 1560)):
#0  0xa7465691 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#1  0xa7465788 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#2  0xb36b371d in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb36b403a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb36b492b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa74be304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb36dd2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb379be99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb770d73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb294bad0 (LWP 1493)):
[KCrash Handler]
#7  0xb5cf9197 in QX11Data::xdndHandlePosition (this=0xa03e340, w=0xbfcf34ac, xe=0xbfcf3038, passive=100) at kernel/qdnd_x11.cpp:989
#8  0xb5cf9c1f in QDragManager::move (this=0xa03e340, globalPos=...) at kernel/qdnd_x11.cpp:1565
#9  0xb5c66e19 in QTouchEventTouchPointPrivate (window=0x90a4410, deviceType=168032344, touchPoints=...) at kernel/qevent_p.h:95
#10 detach (window=0x90a4410, deviceType=168032344, touchPoints=...) at kernel/qevent_p.h:106
#11 QApplicationPrivate::translateRawTouchEvent (window=0x90a4410, deviceType=168032344, touchPoints=...) at kernel/qapplication.cpp:5707
#12 0xb6d0d3ca in KApplication::notify (this=0x90a4410, receiver=0xa03f858, event=0xbfcf3494) at ../../kdeui/kernel/kapplication.cpp:311
#13 0xb67060bb in QCoreApplication::notifyInternal (this=0x90a4410, receiver=0xa03f858, event=0xbfcf3494) at kernel/qcoreapplication.cpp:731
#14 0xb5c61c3b in QApplication::setFont (font=..., className=0xbfcf3494 "@\031Y\266") at kernel/qapplication.cpp:2026
#15 0xb5ceb2bc in QETWidget::translateMouseEvent (this=0xa03f858, event=0xbfcf39bc) at kernel/qapplication_x11.cpp:4529
#16 0xb5ce9746 in QApplication::x11ProcessEvent (this=0x90a4410, event=0xbfcf39bc) at kernel/qapplication_x11.cpp:3742
#17 0xb5d14b84 in ~QString () at ../../include/QtCore/../../src/corelib/tools/qstring.h:883
#18 QKde::kdePalette () at kernel/qkde.cpp:113
#19 0xb36b3aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#20 0xb36b4270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#21 0xb36b4524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0xb673353c in QEventDispatcherGlib::processEvents (this=0x905faa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#23 0xb5d14775 in QString () at ../../include/QtCore/../../src/corelib/tools/qstring.h:697
#24 QKde::kdePalette () at kernel/qkde.cpp:111
#25 0xb6705289 in QEventLoop::processEvents (this=0x9e20c00, flags=...) at kernel/qeventloop.cpp:149
#26 0xb6705522 in QEventLoop::exec (this=0x9e20c00, flags=...) at kernel/qeventloop.cpp:201
#27 0xb5cf98e9 in QDragManager::move (this=0xa03e340, globalPos=...) at kernel/qdnd_x11.cpp:1627
#28 0xb5c73d6e in QInternalMimeData::retrieveData (this=0xbfcf3dd8, mimeType=..., type=-1076937292) at kernel/qdnd.cpp:385
#29 0xb61e25b7 in QAbstractItemView::keyboardSearch (this=0x9b16998, search=...) at itemviews/qabstractitemview.cpp:2902
#30 0xb0356904 in Kickoff::FlipScrollView::startDrag (this=0x9b16998, supportedActions=...) at ../../../../../plasma/desktop/applets/kickoff/ui/flipscrollview.cpp:718
#31 0xb61e12a2 in QAbstractItemView::setItemDelegateForRow (this=0x9b16998, row=-1076934492, delegate=0xbfcf48b4) at itemviews/qabstractitemview.cpp:864
#32 0xb0350fbb in Kickoff::FlipScrollView::mouseMoveEvent (this=0x9b16998, event=0xbfcf48a4) at ../../../../../plasma/desktop/applets/kickoff/ui/flipscrollview.cpp:518
#33 0xb5cb9172 in QWidgetPrivate::setUpdatesEnabled_helper (this=0x9b16998, enable=164) at kernel/qwidget.cpp:1876
#34 0xb60aaf63 in QFrame::QFrame (this=0x9b16998, parent=0xbfcf48a4, f=...) at widgets/qframe.cpp:209
#35 0xb61395d2 in QDoubleValidator::validate (this=0x9b16998, input=...) at widgets/qvalidator.cpp:662
#36 0xb61d8797 in QAbstractItemViewPrivate::fetchMore (this=0x9b16998) at itemviews/qabstractitemview.cpp:3836
#37 0xb613bed5 in isValid (this=0x9b16da0, e=0x9b1a7c0) at ../../include/QtCore/../../src/corelib/tools/qrect.h:238
#38 QAbstractScrollArea::event (this=0x9b16da0, e=0x9b1a7c0) at widgets/qabstractscrollarea.cpp:929
#39 0xb670625a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x90b6518, receiver=0x9b1a7c0, event=0xbfcf48a4) at kernel/qcoreapplication.cpp:846
#40 0xb5c60d00 in QApplicationPrivate::process_cmdline (this=0x90b6518) at kernel/qapplication.cpp:577
#41 0xb5c66201 in QApplication::QApplication (this=0x90a4410, dpy=0x9b1a7c0, visual=3218032804, colormap=3059778028) at kernel/qapplication.cpp:895
#42 0xb6d0d3ca in KApplication::notify (this=0x90a4410, receiver=0x9b1a7c0, event=0xbfcf48a4) at ../../kdeui/kernel/kapplication.cpp:311
#43 0xb67060bb in QCoreApplication::notifyInternal (this=0x90a4410, receiver=0x9b1a7c0, event=0xbfcf48a4) at kernel/qcoreapplication.cpp:731
#44 0xb5c61c3b in QApplication::setFont (font=..., className=0xbfcf48a4 "@\031Y\266") at kernel/qapplication.cpp:2026
#45 0xb5ceb2bc in QETWidget::translateMouseEvent (this=0x9b73308, event=0xbfcf4dcc) at kernel/qapplication_x11.cpp:4529
#46 0xb5ce9746 in QApplication::x11ProcessEvent (this=0x90a4410, event=0xbfcf4dcc) at kernel/qapplication_x11.cpp:3742
#47 0xb5d14b84 in ~QString () at ../../include/QtCore/../../src/corelib/tools/qstring.h:883
#48 QKde::kdePalette () at kernel/qkde.cpp:113
#49 0xb36b3aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#50 0xb36b4270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#51 0xb36b4524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#52 0xb673353c in QEventDispatcherGlib::processEvents (this=0x905faa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#53 0xb5d14775 in QString () at ../../include/QtCore/../../src/corelib/tools/qstring.h:697
#54 QKde::kdePalette () at kernel/qkde.cpp:111
#55 0xb6705289 in QEventLoop::processEvents (this=0xbfcf5094, flags=...) at kernel/qeventloop.cpp:149
#56 0xb6705522 in QEventLoop::exec (this=0xbfcf5094, flags=...) at kernel/qeventloop.cpp:201
#57 0xb6709ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#58 0xb5c5e8e7 in operator+ (widget=0x90a4410, touchEvent=0xbfcf5144) at ../../include/QtCore/../../src/corelib/tools/qpoint.h:315
#59 QApplicationPrivate::updateTouchPointsForWidget (widget=0x90a4410, touchEvent=0xbfcf5144) at kernel/qapplication.cpp:5659
#60 0xb77e55a5 in kdemain (argc=1, argv=0xbfcf52a4) at ../../../../plasma/desktop/shell/main.cpp:118
#61 0x080485cb in main (argc=1, argv=0xbfcf52a4) at plasma-desktop_dummy.cpp:3

Reported using DrKonqi