Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.2 (4.8.2) (Compiled from sources)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic-pae i686
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
-I went to move that bottom panel up to the top of the screen and remove the one on the bottom.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1a69740 (LWP 1557))]

Thread 5 (Thread 0xa987fb40 (LWP 1559)):
#0  0xb2c17dcd in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb631b315 in do_gettime (frac=0xa987efb0, sec=0xa987efa8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb6405226 in QTimerInfoList::updateCurrentTime (this=0xa8f02074) at kernel/qeventdispatcher_unix.cpp:343
#4  0xb640557a in QTimerInfoList::timerWait (this=0xa8f02074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0xb6403e23 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa987f0bc) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb6403ebd in timerSourcePrepare (source=0xa8f02040, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2b60762 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2b60f6f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2b611c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb64048e7 in QEventDispatcherGlib::processEvents (this=0xa8f00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0xb63d050d in QEventLoop::processEvents (this=0xa987f240, flags=...) at kernel/qeventloop.cpp:149
#12 0xb63d07a9 in QEventLoop::exec (this=0xa987f240, flags=...) at kernel/qeventloop.cpp:204
#13 0xb62b994c in QThread::exec (this=0x8b2f1a8) at thread/qthread.cpp:501
#14 0xb63adb5d in QInotifyFileSystemWatcherEngine::run (this=0x8b2f1a8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb62bcde0 in QThreadPrivate::start (arg=0x8b2f1a8) at thread/qthread_unix.cpp:298
#16 0xb2c71d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb75e0ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xa8d7ab40 (LWP 1560)):
#0  0xb2c17dcd in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb631b315 in do_gettime (frac=0xa8d79fb0, sec=0xa8d79fa8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb6405226 in QTimerInfoList::updateCurrentTime (this=0xa8402074) at kernel/qeventdispatcher_unix.cpp:343
#4  0xb640557a in QTimerInfoList::timerWait (this=0xa8402074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0xb6403e23 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa8d7a0bc) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb6403ebd in timerSourcePrepare (source=0xa8402040, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2b60762 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2b60f6f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2b611c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb64048e7 in QEventDispatcherGlib::processEvents (this=0xa8400468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0xb63d050d in QEventLoop::processEvents (this=0xa8d7a240, flags=...) at kernel/qeventloop.cpp:149
#12 0xb63d07a9 in QEventLoop::exec (this=0xa8d7a240, flags=...) at kernel/qeventloop.cpp:204
#13 0xb62b994c in QThread::exec (this=0x8bf4370) at thread/qthread.cpp:501
#14 0xb63adb5d in QInotifyFileSystemWatcherEngine::run (this=0x8bf4370) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb62bcde0 in QThreadPrivate::start (arg=0x8bf4370) at thread/qthread_unix.cpp:298
#16 0xb2c71d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb75e0ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa7338b40 (LWP 1566)):
#0  0xb7732424 in __kernel_vsyscall ()
#1  0xb2c7596b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb75ee3dc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3c32029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3c3206f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2c71d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb75e0ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa5cceb40 (LWP 1568)):
#0  0xb2c74c70 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb75ee634 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2ba03d0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2b60a66 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2b61002 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb2b6152b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xa659f0ea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#7  0xb2b84673 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2c71d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0xb75e0ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1a69740 (LWP 1557)):
[KCrash Handler]
#7  0x00000018 in ?? ()
#8  0xb63e9fb0 in QObject::connect (sender=0x954b468, signal=0xaf11efa9 "2destroyed()", receiver=0x970c508, method=0xaf11ef98 "1widgetDeleted()", type=Qt::AutoConnection) at kernel/qobject.cpp:2551
#9  0xaf0fcdab in SystemTray::Task::widget (this=0x970c508, host=0x960edf8, createIfNecessary=true) at ../../../../../plasma/generic/applets/systemtray/core/task.cpp:83
#10 0xaf11b709 in SystemTray::TaskArea::addWidgetForTask (this=0x9997550, task=0x970c508) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:265
#11 0xaf11be9f in SystemTray::TaskArea::addTask (this=0x9997550, task=0x970c508) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#12 0xb63e86b1 in QMetaObject::activate (sender=0x8623368, m=0xaf128ff8, local_signal_index=1, argv=0xbf819e58) at kernel/qobject.cpp:3547
#13 0xaf0fbe85 in SystemTray::Manager::taskChanged (this=0x8623368, _t1=0x970c508) at ./manager.moc:120
#14 0xb63e86b1 in QMetaObject::activate (sender=0x970c508, m=0xaf1290d0, local_signal_index=0, argv=0xbf819f38) at kernel/qobject.cpp:3547
#15 0xaf0fd465 in SystemTray::Task::changed (this=0x970c508, _t1=0x970c508) at ./task.moc:128
#16 0xaf0fd4b3 in SystemTray::Task::emitChanged (this=0x970c508) at ../../../../../plasma/generic/applets/systemtray/core/task.cpp:144
#17 0xb63e3c01 in QMetaCallEvent::placeMetaCall (this=0x9656820, object=0x970c508) at kernel/qobject.cpp:525
#18 0xb63ecc7b in QObject::event (this=0x970c508, e=0x9656820) at kernel/qobject.cpp:1195
#19 0xb58bced4 in notify_helper (e=0x9656820, receiver=0x970c508, this=0x83c8dc0) at kernel/qapplication.cpp:4559
#20 QApplicationPrivate::notify_helper (this=0x83c8dc0, receiver=0x970c508, e=0x9656820) at kernel/qapplication.cpp:4531
#21 0xb58c230d in QApplication::notify (this=0x9656820, receiver=0x970c508, e=0x9656820) at kernel/qapplication.cpp:4288
#22 0xb6a6bb21 in KApplication::notify (this=0x83b8478, receiver=0x970c508, event=0x9656820) at ../../kdeui/kernel/kapplication.cpp:311
#23 0xb63d197e in QCoreApplication::notifyInternal (this=0x83b8478, receiver=0x970c508, event=0x9656820) at kernel/qcoreapplication.cpp:876
#24 0xb63d5ad8 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x837a130) at kernel/qcoreapplication.cpp:1500
#26 0xb63d5e0c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1393
#27 0xb6404494 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#28 postEventSourceDispatch (s=0x83c7368) at kernel/qeventdispatcher_glib.cpp:279
#29 0xb2b60cda in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#30 0xb2b610e5 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#31 0xb2b611c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#32 0xb6404887 in QEventDispatcherGlib::processEvents (this=0x837aeb8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#33 0xb5975aaa in QGuiEventDispatcherGlib::processEvents (this=0x837aeb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#34 0xb63d050d in QEventLoop::processEvents (this=0xbf81a6b4, flags=...) at kernel/qeventloop.cpp:149
#35 0xb63d07a9 in QEventLoop::exec (this=0xbf81a6b4, flags=...) at kernel/qeventloop.cpp:204
#36 0xb63d5eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#37 0xb58baa74 in QApplication::exec () at kernel/qapplication.cpp:3820
#38 0xb76e6a7b in kdemain (argc=1, argv=0xbf81a8b4) at ../../../../plasma/desktop/shell/main.cpp:120
#39 0x0804850b in main (argc=1, argv=0xbf81a8b4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 290712.

Reported using DrKonqi