Application: Plasma 桌面外壳 (kdeinit4), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fecc2115780 (LWP 1044))]

Thread 4 (Thread 0x7feca6341700 (LWP 1045)):
#0  0x00007fecc83042ed in read () from /lib/libpthread.so.0
#1  0x00007fecc3ffd53f in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fecc3fc11d4 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007fecc3fc15e2 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fecc3fc1764 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007fecc86b7cb6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x00007fecc868866f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#7  0x00007fecc86888f8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#8  0x00007fecc858a6d0 in QThread::exec() () from /usr/lib/libQtCore.so.4
#9  0x00007fecc8668fef in ?? () from /usr/lib/libQtCore.so.4
#10 0x00007fecc858d65c in ?? () from /usr/lib/libQtCore.so.4
#11 0x00007fecc82fddd2 in start_thread () from /lib/libpthread.so.0
#12 0x00007fecc70b2ced in clone () from /lib/libc.so.6

Thread 3 (Thread 0x7fec9ed1d700 (LWP 1054)):
#0  0x00007fecc83018b4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fecbaa513a7 in ?? () from /usr/lib/libQtScript.so.4
#2  0x00007fecbaa513d9 in ?? () from /usr/lib/libQtScript.so.4
#3  0x00007fecc82fddd2 in start_thread () from /lib/libpthread.so.0
#4  0x00007fecc70b2ced in clone () from /lib/libc.so.6

Thread 2 (Thread 0x7fec13571700 (LWP 1057)):
#0  0x00007fecc70aa09d in poll () from /lib/libc.so.6
#1  0x00007fecc3fc1644 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fecc3fc1764 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fecc86b7cb6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#4  0x00007fecc868866f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#5  0x00007fecc86888f8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x00007fecc858a6d0 in QThread::exec() () from /usr/lib/libQtCore.so.4
#7  0x00007fecc8668fef in ?? () from /usr/lib/libQtCore.so.4
#8  0x00007fecc858d65c in ?? () from /usr/lib/libQtCore.so.4
#9  0x00007fecc82fddd2 in start_thread () from /lib/libpthread.so.0
#10 0x00007fecc70b2ced in clone () from /lib/libc.so.6

Thread 1 (Thread 0x7fecc2115780 (LWP 1044)):
[KCrash Handler]
#5  0x00007fecc869d1ee in QMetaObject::addGuard(QObject**) () from /usr/lib/libQtCore.so.4
#6  0x00007fecba25a68e in ?? () from /usr/lib/libQtDeclarative.so.4
#7  0x00007fecc86a013f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#8  0x00007fecba39fadf in ?? () from /usr/lib/libQtDeclarative.so.4
#9  0x00007fecba2715bc in ?? () from /usr/lib/libQtDeclarative.so.4
#10 0x00007fecba3a0111 in ?? () from /usr/lib/libQtDeclarative.so.4
#11 0x00007fecc86a013f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#12 0x00007fecba39456f in QListModelInterface::itemsRemoved(int, int) () from /usr/lib/libQtDeclarative.so.4
#13 0x00007fecba1dd2ef in QDeclarativeListModel::remove(int) () from /usr/lib/libQtDeclarative.so.4
#14 0x00007fecba39313b in ?? () from /usr/lib/libQtDeclarative.so.4
#15 0x00007fecba39323f in QDeclarativeListModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtDeclarative.so.4
#16 0x00007fecba33d948 in ?? () from /usr/lib/libQtDeclarative.so.4
#17 0x00007fecba33f556 in ?? () from /usr/lib/libQtDeclarative.so.4
#18 0x00007fecba33fe5b in ?? () from /usr/lib/libQtDeclarative.so.4
#19 0x00007fecbaac75f3 in ?? () from /usr/lib/libQtScript.so.4
#20 0x00007fecba9c3ee0 in ?? () from /usr/lib/libQtScript.so.4
#21 0x00007fecba9a12aa in ?? () from /usr/lib/libQtScript.so.4
#22 0x00007fec180d5d28 in ?? ()
#23 0x0000000000000000 in ?? ()


Reproducible: Sometimes

Steps to Reproduce:
NO SPECIAL STEPS, JUST HAPPEN SOMETIME