Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.8.0-31-generic x86_64
Distribution: Ubuntu 13.04

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

Right click desktop, select Activities...
Selected template "KDE Homerun"

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3a361077c0 (LWP 2093))]

Thread 5 (Thread 0x7f3a171c6700 (LWP 2096)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3a2ee29b27 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f3a2ee29b59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f3a29522f8e in start_thread (arg=0x7f3a171c6700) at pthread_create.c:311
#4  0x00007f3a359e5e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f398e6a2700 (LWP 2097)):
#0  0x00007f3a359d93cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f3a28e201dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3a28e20304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3a325c6036 in QEventDispatcherGlib::processEvents (this=0x7f39880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f3a3259638f in QEventLoop::processEvents (this=this@entry=0x7f398e6a1d90, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3a32596618 in QEventLoop::exec (this=this@entry=0x7f398e6a1d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3a32498410 in QThread::exec (this=this@entry=0x218a920) at thread/qthread.cpp:542
#7  0x00007f3a32577edf in QInotifyFileSystemWatcherEngine::run (this=0x218a920) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00007f3a3249abec in QThreadPrivate::start (arg=0x218a920) at thread/qthread_unix.cpp:338
#9  0x00007f3a29522f8e in start_thread (arg=0x7f398e6a2700) at pthread_create.c:311
#10 0x00007f3a359e5e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f397ffff700 (LWP 2100)):
#0  0x00007f3a28e5f5e9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3a28e1fd1a in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3a28e20175 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3a28e20304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3a325c6036 in QEventDispatcherGlib::processEvents (this=0x7f39780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f3a3259638f in QEventLoop::processEvents (this=this@entry=0x7f397fffed90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f3a32596618 in QEventLoop::exec (this=this@entry=0x7f397fffed90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f3a32498410 in QThread::exec (this=this@entry=0x2bfde80) at thread/qthread.cpp:542
#8  0x00007f3a32577edf in QInotifyFileSystemWatcherEngine::run (this=0x2bfde80) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007f3a3249abec in QThreadPrivate::start (arg=0x2bfde80) at thread/qthread_unix.cpp:338
#10 0x00007f3a29522f8e in start_thread (arg=0x7f397ffff700) at pthread_create.c:311
#11 0x00007f3a359e5e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f3977dfb700 (LWP 2106)):
#0  0x00007f3a2952607f in __pthread_mutex_unlock_usercnt (mutex=0x7f3970000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f3a28e5f5f1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3a28e1f366 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3a28e200b4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3a28e20304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3a325c6036 in QEventDispatcherGlib::processEvents (this=0x7f39700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f3a3259638f in QEventLoop::processEvents (this=this@entry=0x7f3977dfad80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f3a32596618 in QEventLoop::exec (this=this@entry=0x7f3977dfad80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f3a32498410 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007f397de666e5 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#10 0x00007f3a3249abec in QThreadPrivate::start (arg=0x382a580) at thread/qthread_unix.cpp:338
#11 0x00007f3a29522f8e in start_thread (arg=0x7f3977dfb700) at pthread_create.c:311
#12 0x00007f3a359e5e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f3a361077c0 (LWP 2093)):
[KCrash Handler]
#6  0x00007f3a34190944 in QDeclarativeItem::~QDeclarativeItem (this=0x75f5ed0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f399621ab11 in ~QDeclarativeElement (this=0x75f5ed0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x75f5ed0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f3a325b15e8 in QObject::event (this=0x75f5ed0, e=<optimized out>) at kernel/qobject.cpp:1175
#10 0x00007f3a3193d8ec in QApplicationPrivate::notify_helper (this=this@entry=0x2104430, receiver=receiver@entry=0x75f5ed0, e=e@entry=0x50dd940) at kernel/qapplication.cpp:4567
#11 0x00007f3a3194025b in QApplication::notify (this=this@entry=0x20f7f60, receiver=receiver@entry=0x75f5ed0, e=e@entry=0x50dd940) at kernel/qapplication.cpp:4428
#12 0x00007f3a3325b1a6 in KApplication::notify (this=0x20f7f60, receiver=0x75f5ed0, event=0x50dd940) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f3a3259763e in QCoreApplication::notifyInternal (this=0x20f7f60, receiver=receiver@entry=0x75f5ed0, event=event@entry=0x50dd940) at kernel/qcoreapplication.cpp:946
#14 0x00007f3a3259b171 in sendEvent (event=0x50dd940, receiver=0x75f5ed0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x20761f0) at kernel/qcoreapplication.cpp:1570
#16 0x00007f3a3259b4a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#17 0x00007f3a325c5e83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x2106c00) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f3a28e1ff05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f3a28e20248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f3a28e20304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f3a325c6016 in QEventDispatcherGlib::processEvents (this=0x2077ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f3a319e313e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f3a3259638f in QEventLoop::processEvents (this=this@entry=0x7fff17052de0, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f3a32596618 in QEventLoop::exec (this=this@entry=0x7fff17052de0, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f3a3259bcf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#27 0x00007f3a3193bffc in QApplication::exec () at kernel/qapplication.cpp:3828
#28 0x00007f3a35cf146b in kdemain (argc=1, argv=0x7fff170530d8) at ../../../../plasma/desktop/shell/main.cpp:126
#29 0x00007f3a3590dea5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff170530d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff170530c8) at libc-start.c:260
#30 0x0000000000400711 in _start ()

This bug may be a duplicate of or related to bug 325128.

Possible duplicates by query: bug 325395, bug 325279, bug 325131, bug 325128, bug 324803.

Reported using DrKonqi