Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.4 (Compiled from sources)
Qt Version: 4.8.3
Operating System: Linux 3.5.0-22-generic i686
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed: I switched activities to one called Internet that I made a few weeks ago and started Firefox18.0

- Unusual behavior I noticed:   the button top right of the desktop sometimes shows an icon instead of the default behaviour of showing the activity name.  There have been a few crashes since I installed Kubuntu a few weeks ago but I can't remember whether they were applications on the Kickoff menu or more system related.  Some are since I installed Gnome.

- Custom settings of the application:  Gnome was installed on top of KDE a few days ago.  I got Dropbox working Thursday 17 Jan.  Rsibreak working. Analogue clock widget.  desktop theme = Air with Oxygen for Panel Background and Kickoff and Application dashboard shutdown dialogue.  Yesterday I changed system colours from 137746-CleanBreen.kcsrc to HumanBlack.kcrsrc.  Both were downloaded from KDE Looks as was the wallpaer for the default activity which I have re-named Essays.  My new activity, Internet, has a wallpaper that came with the Kubuntu distribution, it's called Stripes.  Yesterday Muon Updater asked me if I'd like to install new kernels and I did.

-- 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 0xb1d57740 (LWP 1714))]

Thread 4 (Thread 0xaf0a7b40 (LWP 1715)):
#0  0xb2a5befa in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb2a5cba8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb2a5ce61 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb614f99f in QEventDispatcherGlib::processEvents (this=0xae700468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0xb611c26c in QEventLoop::processEvents (this=this@entry=0xaf0a7228, flags=...) at kernel/qeventloop.cpp:149
#5  0xb611c561 in QEventLoop::exec (this=0xaf0a7228, flags=...) at kernel/qeventloop.cpp:204
#6  0xb600766c in QThread::exec (this=0x94f2358) at thread/qthread.cpp:501
#7  0xb60fa7bd in QInotifyFileSystemWatcherEngine::run (this=0x94f2358) at io/qfilesystemwatcher_inotify.cpp:248
#8  0xb600aa58 in QThreadPrivate::start (arg=0x94f2358) at thread/qthread_unix.cpp:338
#9  0xb2b68d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#10 0xb7689d3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xace01b40 (LWP 1716)):
#0  0xb77ce424 in __kernel_vsyscall ()
#1  0xb2b6c96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb769764c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3b9d1cd in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3b9d1ff in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2b68d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb7689d3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa6b63b40 (LWP 1717)):
#0  0xb2d43dcd in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb6068fb5 in do_gettime (frac=0xa6b62f70, sec=0xa6b62f68) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb615036e in QTimerInfoList::updateCurrentTime (this=0xa6202074) at kernel/qeventdispatcher_unix.cpp:343
#4  0x7fffffff in ?? ()
#5  0xb61506fa in QTimerInfoList::timerWait (this=0xa6202074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x7fffffff in ?? ()

Thread 1 (Thread 0xb1d57740 (LWP 1714)):
[KCrash Handler]
#7  0x000001b1 in ?? ()
#8  0xb6ce46d1 in QDeclarativeItem::~QDeclarativeItem (this=0xb0a7998, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#9  0xac06ed00 in Plasma::FrameSvgItem::~FrameSvgItem (this=0xb0a7998, __in_chrg=<optimized out>) at ../../../../plasma/declarativeimports/core/framesvgitem.cpp:67
#10 0xac0602b0 in ~QDeclarativeElement (this=0xb0a7998, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#11 QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0xb0a7998, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#12 0xb6131783 in qDeleteInEventHandler (o=o@entry=0xb0a7998) at kernel/qobject.cpp:4277
#13 0xb6133f10 in QObject::event (this=0xb0a7998, e=0xb090260) at kernel/qobject.cpp:1176
#14 0xb6cdead4 in QDeclarativeItem::event (this=0xb0a7998, ev=0xb090260) at graphicsitems/qdeclarativeitem.cpp:3748
#15 0xb560d39c in QApplicationPrivate::notify_helper (this=0x91dd968, receiver=0xb0a7998, e=0xb090260) at kernel/qapplication.cpp:4562
#16 0xb5611daf in QApplication::notify (this=0xb090260, receiver=0xb0a7998, e=0xb090260) at kernel/qapplication.cpp:3944
#17 0xb67ace91 in KApplication::notify (this=0x91c96c0, receiver=0xb0a7998, event=0xb090260) at ../../kdeui/kernel/kapplication.cpp:311
#18 0xb611d78e in QCoreApplication::notifyInternal (this=0x91c96c0, receiver=0xb0a7998, event=0xb090260) at kernel/qcoreapplication.cpp:915
#19 0xb612197d 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=0x9181130) at kernel/qcoreapplication.cpp:1539
#21 0xb6121c0c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#22 0xb614f804 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#23 postEventSourceDispatch (s=0x91e3680) at kernel/qeventdispatcher_glib.cpp:279
#24 0xb2a5c9e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb2a5cd80 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb2a5ce61 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb614f981 in QEventDispatcherGlib::processEvents (this=0x9181eb8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#28 0xb56c39aa in QGuiEventDispatcherGlib::processEvents (this=0x9181eb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0xb611c26c in QEventLoop::processEvents (this=this@entry=0xbfdf6978, flags=...) at kernel/qeventloop.cpp:149
#30 0xb611c561 in QEventLoop::exec (this=0xbfdf6978, flags=...) at kernel/qeventloop.cpp:204
#31 0xb6121cba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#32 0xb560afc4 in QApplication::exec () at kernel/qapplication.cpp:3823
#33 0xb778c063 in kdemain (argc=1, argv=0xbfdf6b34) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804855b in main (argc=1, argv=0xbfdf6b34) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 313284, bug 311625, bug 311239, bug 310686, bug 309807.

Reported using DrKonqi