Bug 323776

Summary: crashing on shutdown
Product: [Unmaintained] plasma4 Reporter: Mebuntu <salsa_temps>
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: skyclear242
Priority: NOR Keywords: drkonqi
Version: 4.11.0   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Mebuntu 2013-08-20 13:28:01 UTC 
Application: plasma-desktop (4.11.00)
KDE Platform Version: 4.11.00
Qt Version: 4.8.2
Operating System: Linux 3.3.8-030308-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
started to shut down, some applications closed then the desktop crashed.

-- 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 0x7fcf49fb0780 (LWP 2315))]

Thread 6 (Thread 0x7fcf2c0d1700 (LWP 2316)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcf431b5022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fcf431b5059 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fcf3da43e9a in start_thread (arg=0x7fcf2c0d1700) at pthread_create.c:308
#4  0x00007fcf49899ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fcea10bf700 (LWP 2320)):
#0  0x00007fcf3da4705d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7fce9c000a60) at pthread_mutex_unlock.c:290
#2  0x00007fcf3d3825d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf3d3467e2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf3d346f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3d347164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fcf46402926 in QEventDispatcherGlib::processEvents (this=0x7fce9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007fcf463d1e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007fcf463d20b7 in QEventLoop::exec (this=0x7fcea10bedd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007fcf462d1077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007fcf463b1b6f in QInotifyFileSystemWatcherEngine::run (this=0x2221a50) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007fcf462d409b in QThreadPrivate::start (arg=0x2221a50) at thread/qthread_unix.cpp:307
#12 0x00007fcf3da43e9a in start_thread (arg=0x7fcea10bf700) at pthread_create.c:308
#13 0x00007fcf49899ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fce9ab71700 (LWP 2322)):
#0  0x00007fcf4988e313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcf3d347036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf3d34749a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce9b65b406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fcf3d3689e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3da43e9a in start_thread (arg=0x7fce9ab71700) at pthread_create.c:308
#6  0x00007fcf49899ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fce93fff700 (LWP 2323)):
#0  0x00007fcf49893033 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fcf463b11df in QProcessManager::run (this=0x7fcf4672a500) at io/qprocess_unix.cpp:245
#2  0x00007fcf462d409b in QThreadPrivate::start (arg=0x7fcf4672a500) at thread/qthread_unix.cpp:307
#3  0x00007fcf3da43e9a in start_thread (arg=0x7fce93fff700) at pthread_create.c:308
#4  0x00007fcf49899ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fce9359f700 (LWP 2325)):
#0  0x00007fcf4988e313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcf3d347036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf3d347164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf46402926 in QEventDispatcherGlib::processEvents (this=0x7fce800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fcf463d1e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcf463d20b7 in QEventLoop::exec (this=0x7fce9359edd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fcf462d1077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fcf463b1b6f in QInotifyFileSystemWatcherEngine::run (this=0x23bff20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fcf462d409b in QThreadPrivate::start (arg=0x23bff20) at thread/qthread_unix.cpp:307
#9  0x00007fcf3da43e9a in start_thread (arg=0x7fce9359f700) at pthread_create.c:308
#10 0x00007fcf49899ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcf49fb0780 (LWP 2315)):
[KCrash Handler]
#6  0x00007fcf480099ee in QDeclarativeItem::~QDeclarativeItem (this=0x3395d20, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007fcf47fccaf5 in ~QDeclarativeElement (this=0x3395d20, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x3395d20, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007fcf463ec978 in QObject::event (this=0x3395d20, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007fcf457547b4 in notify_helper (e=0x1ca6750, receiver=0x3395d20, this=0x12a3420) at kernel/qapplication.cpp:4556
#11 QApplicationPrivate::notify_helper (this=0x12a3420, receiver=0x3395d20, e=0x1ca6750) at kernel/qapplication.cpp:4528
#12 0x00007fcf45759583 in QApplication::notify (this=0x12a05d0, receiver=0x3395d20, e=0x1ca6750) at kernel/qapplication.cpp:4417
#13 0x00007fcf470b8d96 in KApplication::notify (this=0x12a05d0, receiver=0x3395d20, event=0x1ca6750) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007fcf463d332c in QCoreApplication::notifyInternal (this=0x12a05d0, receiver=0x3395d20, event=0x1ca6750) at kernel/qcoreapplication.cpp:915
#15 0x00007fcf463d710a in sendEvent (event=0x1ca6750, receiver=0x3395d20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x12201f0) at kernel/qcoreapplication.cpp:1539
#17 0x00007fcf463d743e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1194
#18 0x00007fcf49ba2fbf in kdemain (argc=1, argv=0x7fff96128938) at ../../../../plasma/desktop/shell/main.cpp:126
#19 0x00007fcf497c776d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff96128938, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff96128928) at libc-start.c:226
#20 0x0000000000400671 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 302931.

Possible duplicates by query: bug 321878, bug 321861, bug 320582, bug 320469, bug 319473.

Reported using DrKonqi
Comment 1 Christoph Feck 2013-08-20 16:25:36 UTC 

*** This bug has been marked as a duplicate of bug 321878 ***
Comment 2 skyclear242 2014-01-17 04:36:12 UTC 
This bug just occured on my system.

I closed all the applications that were running (Firefox, Okular, Konversation), and then I clicked Leave ->Shut down->Turn Off Computer. As soon as I clicked Turn Off Computer, the desktop crashed. This was a random crash, and I couldn't reproduce it again.

I am using Linux Mint 16 KDE 64-bit.
CPU: AMD Athlon 2 x3 455 3.3 GHz
GPU: NVIDIA GeForce 9500GT

Here is the backtrace:

Application: plasma-desktop (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic x86_64
Distribution: Linux Mint 16 Petra

-- Information about the crash:
<In detail, tell us what you were doing  when the application crashed.>

-- 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 0x7f949433a7c0 (LWP 1843))]

Thread 11 (Thread 0x7f94754c8700 (LWP 1845)):
#0  0x00007f9493be585d in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f9493be5701 in sleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f948cfd1022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f948cfd10a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#4  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f93ea9ed700 (LWP 1846)):
#0  0x00007f9486fbe0f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9486fbe399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9486f7dd59 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9486f7e5c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9486f7e7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94907eaa76 in QEventDispatcherGlib::processEvents (this=0x7f93e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f94907bc5ef in QEventLoop::processEvents (this=this@entry=0x7f93ea9ecd70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f94907bc8e5 in QEventLoop::exec (this=this@entry=0x7f93ea9ecd70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f94906bb88f in QThread::exec (this=this@entry=0x2231120) at thread/qthread.cpp:542
#9  0x00007f949079dd13 in QInotifyFileSystemWatcherEngine::run (this=0x2231120) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f94906bdf2f in QThreadPrivate::start (arg=0x2231120) at thread/qthread_unix.cpp:338
#11 0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f93e3fff700 (LWP 1848)):
#0  0x00007f9486fbe0ed in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9486fbe399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9486f7e595 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9486f7eb0a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f93e8ffab66 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f9486fa30f5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f93e35b4700 (LWP 1849)):
#0  0x00007f948768afbe in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f9486fbe3a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9486f7d938 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9486f7e651 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9486f7e7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94907eaa76 in QEventDispatcherGlib::processEvents (this=0x7f93d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f94907bc5ef in QEventLoop::processEvents (this=this@entry=0x7f93e35b3d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f94907bc8e5 in QEventLoop::exec (this=this@entry=0x7f93e35b3d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f94906bb88f in QThread::exec (this=this@entry=0x2b342a0) at thread/qthread.cpp:542
#9  0x00007f949079dd13 in QInotifyFileSystemWatcherEngine::run (this=0x2b342a0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f94906bdf2f in QThreadPrivate::start (arg=0x2b342a0) at thread/qthread_unix.cpp:338
#11 0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f93d7015700 (LWP 2141)):
#0  0x00007f948768cc84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f94906be406 in wait (time=18446744073709551615, this=0x2ad42d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2acfb50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f948c249e6c in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f948c24c903 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007f948c24c91c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x00007f948c24b61f in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#7  0x00007f94906bdf2f in QThreadPrivate::start (arg=0x427aee0) at thread/qthread_unix.cpp:338
#8  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f93e8d0c700 (LWP 2142)):
#0  0x00007f948768cc84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f94906be406 in wait (time=18446744073709551615, this=0x2ad42d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2acfb50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f948c249e6c in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f948c24c903 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007f948c24b61f in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#6  0x00007f94906bdf2f in QThreadPrivate::start (arg=0x4349520) at thread/qthread_unix.cpp:338
#7  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f93cbbd2700 (LWP 2143)):
#0  0x00007f948768cc84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f94906be406 in wait (time=18446744073709551615, this=0x2ad42d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2acfb50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f948c249e6c in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f948c24c903 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007f948c24c91c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x00007f948c24b61f in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#7  0x00007f94906bdf2f in QThreadPrivate::start (arg=0x2ab4db0) at thread/qthread_unix.cpp:338
#8  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f93cb3d1700 (LWP 2144)):
#0  0x00007f948768cc84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f94906be406 in wait (time=18446744073709551615, this=0x2ad42d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2acfb50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f948c249e6c in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f948c24c903 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007f948c24b61f in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#6  0x00007f94906bdf2f in QThreadPrivate::start (arg=0x3df3720) at thread/qthread_unix.cpp:338
#7  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f93cabd0700 (LWP 2145)):
#0  0x00007f948768cc84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f94906be406 in wait (time=18446744073709551615, this=0x2ad42d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2acfb50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f948c249e6c in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f948c24c903 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007f948c24c91c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x00007f948c24b61f in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#7  0x00007f94906bdf2f in QThreadPrivate::start (arg=0x4055690) at thread/qthread_unix.cpp:338
#8  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f93c97c1700 (LWP 2967)):
#0  0x00007f948768cc84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f94906be406 in wait (time=18446744073709551615, this=0x2ad42d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2acfb50, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f948c249e6c in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f948c24c903 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007f948c24c91c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x00007f948c24b61f in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#7  0x00007f94906bdf2f in QThreadPrivate::start (arg=0x40d4a20) at thread/qthread_unix.cpp:338
#8  0x00007f9487688f6e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f9493c1e9cd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f949433a7c0 (LWP 1843)):
[KCrash Handler]
#5  0x00007f94923b9334 in QDeclarativeItem::~QDeclarativeItem (this=0x4b26040, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#6  0x00007f9492380e96 in ~QDeclarativeElement (this=0x4b26040, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#7  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x4b26040, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  0x00007f94907d5e08 in QObject::event (this=0x4b26040, e=<optimized out>) at kernel/qobject.cpp:1175
#9  0x00007f948fb5adfc in QApplicationPrivate::notify_helper (this=this@entry=0x222d1e0, receiver=receiver@entry=0x4b26040, e=e@entry=0x3ddabd0) at kernel/qapplication.cpp:4567
#10 0x00007f948fb61470 in QApplication::notify (this=0x222a5d0, receiver=0x4b26040, e=0x3ddabd0) at kernel/qapplication.cpp:4353
#11 0x00007f9491481a6a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#12 0x00007f94907bd8bd in QCoreApplication::notifyInternal (this=0x222a5d0, receiver=receiver@entry=0x4b26040, event=event@entry=0x3ddabd0) at kernel/qcoreapplication.cpp:946
#13 0x00007f94907c0e1f in sendEvent (event=0x3ddabd0, receiver=0x4b26040) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#14 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52, data=0x219f1f0) at kernel/qcoreapplication.cpp:1570
#15 0x00007f94907c12c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52) at kernel/qcoreapplication.cpp:1463
#16 0x00007f94907c1e92 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#17 0x00007f9493f2827c in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#18 0x00007f9493b45de5 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#19 0x000000000040070e in _start ()