Bug 310686

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.2
Qt Version: 4.8.3
Operating System: Linux 3.5.0-18-generic i686
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
I just added Analog Clock widget 

- Unusual behavior I noticed:
it showed up for a second or two, then screen gone black with only cursor visible, and after a couple of seconds desktop turned back on, without displaying Analog Clock widget.

-- 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 0xaff45740 (LWP 1701))]

Thread 6 (Thread 0xad3aeb40 (LWP 1702)):
#0  0xb76f7424 in __kernel_vsyscall ()
#1  0xb2a9696b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb75bf64c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3ac71cd in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3ac71ff in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb24c30e1 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x5c8b0824 in ?? ()
#7  0xbab80424 in ?? ()
#8  0x65000000 in ?? ()
#9  0x001015ff in ?? ()
#10 0xd3890000 in ?? ()
#11 0xfff0013d in ?? ()
#12 0xc30173ff in ?? ()
#13 0x0fc3d2e8 in ?? ()
#14 0xbbc18100 in ?? ()
#15 0x8b001774 in ?? ()
#16 0xfffefc89 in ?? ()
#17 0x29d231ff in ?? ()
#18 0x0d0365c2 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 5 (Thread 0xa6f3eb40 (LWP 1703)):
#0  0xb2a94cba in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb75bf864 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb29c8c80 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2987cb0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2987e61 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb607999f in QEventDispatcherGlib::processEvents (this=0xa6600488, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb604626c in QEventLoop::processEvents (this=this@entry=0xa6f3e178, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6046561 in QEventLoop::exec (this=0xa6f3e178, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5f3166c in QThread::exec (this=0xa1e4ac0) at thread/qthread.cpp:501
#9  0xb60247bd in QInotifyFileSystemWatcherEngine::run (this=0xa1e4ac0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb5f34a58 in QThreadPrivate::start (arg=0xa1e4ac0) at thread/qthread_unix.cpp:338
#11 0xb24c30e1 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x5c8b0824 in ?? ()
#13 0xbab80424 in ?? ()
#14 0x65000000 in ?? ()
#15 0x001015ff in ?? ()
#16 0xd3890000 in ?? ()
#17 0xfff0013d in ?? ()
#18 0xc30173ff in ?? ()
#19 0x0fc3d2e8 in ?? ()
#20 0xbbc18100 in ?? ()
#21 0x8b001774 in ?? ()
#22 0xfffefc89 in ?? ()
#23 0x29d231ff in ?? ()
#24 0x0d0365c2 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 4 (Thread 0xa639fb40 (LWP 1704)):
#0  0xb2c6ddcd in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb5f92fb5 in do_gettime (frac=0xa639eec0, sec=0xa639eeb8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb607a36e in QTimerInfoList::updateCurrentTime (this=0xa5a020bc) at kernel/qeventdispatcher_unix.cpp:343
#4  0x7fffffff in ?? ()
#5  0xb607a6fa in QTimerInfoList::timerWait (this=0xa5a020bc, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x7fffffff in ?? ()

Thread 3 (Thread 0xa3910b40 (LWP 2098)):
#0  0xb76f7424 in __kernel_vsyscall ()
#1  0xb2a9696b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb75bf64c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb4bb00e9 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb4bb01df in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb24c30e1 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x5c8b0824 in ?? ()
#7  0xbab80424 in ?? ()
#8  0x65000000 in ?? ()
#9  0x001015ff in ?? ()
#10 0xd3890000 in ?? ()
#11 0xfff0013d in ?? ()
#12 0xc30173ff in ?? ()
#13 0x0fc3d2e8 in ?? ()
#14 0xbbc18100 in ?? ()
#15 0x8b001774 in ?? ()
#16 0xfffefc89 in ?? ()
#17 0x29d231ff in ?? ()
#18 0x0d0365c2 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xa2b0db40 (LWP 2099)):
#0  0xb29c8c82 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb29877cd in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb2987c92 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2987e61 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb607999f in QEventDispatcherGlib::processEvents (this=0xbb3ec68, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0xb604626c in QEventLoop::processEvents (this=this@entry=0xa2b0d1a8, flags=...) at kernel/qeventloop.cpp:149
#6  0xb6046561 in QEventLoop::exec (this=0xa2b0d1a8, flags=...) at kernel/qeventloop.cpp:204
#7  0xb5f3166c in QThread::exec (this=this@entry=0xae30200) at thread/qthread.cpp:501
#8  0xb5f317cb in QThread::run (this=0xae30200) at thread/qthread.cpp:568
#9  0xb5f34a58 in QThreadPrivate::start (arg=0xae30200) at thread/qthread_unix.cpp:338
#10 0xb24c30e1 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x5c8b0824 in ?? ()
#12 0xbab80424 in ?? ()
#13 0x65000000 in ?? ()
#14 0x001015ff in ?? ()
#15 0xd3890000 in ?? ()
#16 0xfff0013d in ?? ()
#17 0xc30173ff in ?? ()
#18 0x0fc3d2e8 in ?? ()
#19 0xbbc18100 in ?? ()
#20 0x8b001774 in ?? ()
#21 0xfffefc89 in ?? ()
#22 0x29d231ff in ?? ()
#23 0x0d0365c2 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xaff45740 (LWP 1701)):
[KCrash Handler]
#7  0x10040303 in ?? ()
#8  0xb6c0e6d1 in QDeclarativeItem::~QDeclarativeItem (this=0xe15c478, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#9  0xac5ef860 in Plasma::FrameSvgItem::~FrameSvgItem (this=0xe15c478, __in_chrg=<optimized out>) at ../../../../plasma/declarativeimports/core/framesvgitem.cpp:67
#10 0xac5e11f0 in ~QDeclarativeElement (this=0xe15c478, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#11 QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0xe15c478, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#12 0xb605b783 in qDeleteInEventHandler (o=o@entry=0xe15c478) at kernel/qobject.cpp:4277
#13 0xb605df10 in QObject::event (this=0xe15c478, e=0xe01a6d8) at kernel/qobject.cpp:1176
#14 0xb6c08ad4 in QDeclarativeItem::event (this=0xe15c478, ev=0xe01a6d8) at graphicsitems/qdeclarativeitem.cpp:3748
#15 0xb553739c in QApplicationPrivate::notify_helper (this=0x9b1fe70, receiver=0xe15c478, e=0xe01a6d8) at kernel/qapplication.cpp:4562
#16 0xb553bdaf in QApplication::notify (this=0xe01a6d8, receiver=0xe15c478, e=0xe01a6d8) at kernel/qapplication.cpp:3944
#17 0xb66d6e91 in KApplication::notify (this=0x9aec8f8, receiver=0xe15c478, event=0xe01a6d8) at ../../kdeui/kernel/kapplication.cpp:311
#18 0xb604778e in QCoreApplication::notifyInternal (this=0x9aec8f8, receiver=0xe15c478, event=0xe01a6d8) at kernel/qcoreapplication.cpp:915
#19 0xb604b97d in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9a64130) at kernel/qcoreapplication.cpp:1539
#21 0xb604bc0c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#22 0xb6079804 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#23 postEventSourceDispatch (s=0x9b1cc68) at kernel/qeventdispatcher_glib.cpp:279
#24 0xb29879e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb2987d80 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb2987e61 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb6079981 in QEventDispatcherGlib::processEvents (this=0x9a64eb8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#28 0xb55ed9aa in QGuiEventDispatcherGlib::processEvents (this=0x9a64eb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0xb604626c in QEventLoop::processEvents (this=this@entry=0xbfb08bf8, flags=...) at kernel/qeventloop.cpp:149
#30 0xb6046561 in QEventLoop::exec (this=0xbfb08bf8, flags=...) at kernel/qeventloop.cpp:204
#31 0xb604bcba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#32 0xb5534fc4 in QApplication::exec () at kernel/qapplication.cpp:3823
#33 0xb76b5063 in kdemain (argc=1, argv=0xbfb08db4) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804855b in main (argc=1, argv=0xbfb08db4) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 309807.

Possible duplicates by query: bug 309807, bug 309310, bug 309293, bug 308704, bug 308208.

Reported using DrKonqi