Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5 (Compiled from sources)
Qt Version: 4.8.4
Operating System: Linux 3.8.0-30-generic x86_64
Distribution: Linux Mint 15 Olivia

-- Information about the crash:
- What I was doing when the application crashed: I was trying to update my visual login screen to a newer one I had selected from the login screen selections.

- Unusual behavior I noticed: The Login Screens would not open so I could choose a different layout.

- Custom settings of the application: Search and launch screen desktop background was active when attempting to update my login screen.

The crash can be reproduced every time.

-- 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 0x7f4136c797c0 (LWP 2734))]

Thread 9 (Thread 0x7f411533d700 (LWP 2736)):
#0  0x00007f41299eb359 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f41299eb5e9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f41299ab8f3 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f41299ac0fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f41299ac304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4133152036 in QEventDispatcherGlib::processEvents (this=0x7f41100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f413312238f in QEventLoop::processEvents (this=this@entry=0x7f411533cd90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f4133122618 in QEventLoop::exec (this=this@entry=0x7f411533cd90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f4133024410 in QThread::exec (this=this@entry=0x17a04c0) at thread/qthread.cpp:542
#9  0x00007f4133103edf in QInotifyFileSystemWatcherEngine::run (this=0x17a04c0) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f4133026bec in QThreadPrivate::start (arg=0x17a04c0) at thread/qthread_unix.cpp:338
#11 0x00007f412a0aef8e in start_thread (arg=0x7f411533d700) at pthread_create.c:311
#12 0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7f410eb9f700 (LWP 2738)):
#0  0x00007f412a0b1075 in __GI___pthread_mutex_lock (mutex=0x7f4100000a60) at pthread_mutex_lock.c:95
#1  0x00007f41299eb5c1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f41299abc74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f41299ac175 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f41299ac304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4133152036 in QEventDispatcherGlib::processEvents (this=0x7f41000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f413312238f in QEventLoop::processEvents (this=this@entry=0x7f410eb9ed90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f4133122618 in QEventLoop::exec (this=this@entry=0x7f410eb9ed90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f4133024410 in QThread::exec (this=this@entry=0x15434e0) at thread/qthread.cpp:542
#9  0x00007f4133103edf in QInotifyFileSystemWatcherEngine::run (this=0x15434e0) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f4133026bec in QThreadPrivate::start (arg=0x15434e0) at thread/qthread_unix.cpp:338
#11 0x00007f412a0aef8e in start_thread (arg=0x7f410eb9f700) at pthread_create.c:311
#12 0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7f410fc17700 (LWP 3109)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f412f9b5b27 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f412f9b5b59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f412a0aef8e in start_thread (arg=0x7f410fc17700) at pthread_create.c:311
#4  0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f406ba90700 (LWP 3111)):
#0  0x00007f41299eb359 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f41299eb5b9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f41299ac190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f41299ac6ba in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f406bd804f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f41299cfeb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f412a0aef8e in start_thread (arg=0x7f406ba90700) at pthread_create.c:311
#7  0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f40699bf700 (LWP 7811)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f413302714b in wait (time=18446744073709551615, this=0x1892780) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x188c078, mutex=0x175b070, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412ec39041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x188c050, th=0x4593bf0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412ec3b94b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1696d90, th=0x4593bf0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412ec3a63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f40699bedc0, parent=0x188c050, th=th@entry=0x4593bf0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412ec3a6cb in ThreadWeaver::Thread::run (this=0x4593bf0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4133026bec in QThreadPrivate::start (arg=0x4593bf0) at thread/qthread_unix.cpp:338
#8  0x00007f412a0aef8e in start_thread (arg=0x7f40699bf700) at pthread_create.c:311
#9  0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f410ce4a700 (LWP 7812)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f413302714b in wait (time=18446744073709551615, this=0x1892780) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x188c078, mutex=0x175b070, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412ec39041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x188c050, th=0x3a946b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412ec3b94b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1696d90, th=0x3a946b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412ec3a63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f410ce49dc0, parent=0x188c050, th=th@entry=0x3a946b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412ec3a6cb in ThreadWeaver::Thread::run (this=0x3a946b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4133026bec in QThreadPrivate::start (arg=0x3a946b0) at thread/qthread_unix.cpp:338
#8  0x00007f412a0aef8e in start_thread (arg=0x7f410ce4a700) at pthread_create.c:311
#9  0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f40635ef700 (LWP 7813)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f413302714b in wait (time=18446744073709551615, this=0x1892780) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x188c078, mutex=0x175b070, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412ec39041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x188c050, th=0x29a80b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412ec3b94b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1696d90, th=0x29a80b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412ec3a63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f40635eedc0, parent=0x188c050, th=th@entry=0x29a80b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412ec3a6cb in ThreadWeaver::Thread::run (this=0x29a80b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4133026bec in QThreadPrivate::start (arg=0x29a80b0) at thread/qthread_unix.cpp:338
#8  0x00007f412a0aef8e in start_thread (arg=0x7f40635ef700) at pthread_create.c:311
#9  0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f4062dee700 (LWP 7814)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f413302714b in wait (time=18446744073709551615, this=0x1892780) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x188c078, mutex=0x175b070, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412ec39041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x188c050, th=0x29b5490) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412ec3b94b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1696d90, th=0x29b5490) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412ec3a63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f4062deddc0, parent=0x188c050, th=th@entry=0x29b5490) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412ec3a6cb in ThreadWeaver::Thread::run (this=0x29b5490) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4133026bec in QThreadPrivate::start (arg=0x29b5490) at thread/qthread_unix.cpp:338
#8  0x00007f412a0aef8e in start_thread (arg=0x7f4062dee700) at pthread_create.c:311
#9  0x00007f4136571e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f4136c797c0 (LWP 2734)):
[KCrash Handler]
#6  QReadWriteLock::~QReadWriteLock (this=0xbf1, __in_chrg=<optimized out>) at thread/qreadwritelock.cpp:137
#7  0x00007f41360fe73d in ~QueryMatchPrivate (this=<optimized out>, __in_chrg=<optimized out>) at ../../plasma/querymatch.cpp:72
#8  ~QSharedDataPointer (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qshareddata.h:90
#9  Plasma::QueryMatch::~QueryMatch (this=0xbf1, __in_chrg=<optimized out>) at ../../plasma/querymatch.cpp:100
#10 0x00007f413610e2de in Plasma::RunnerManager::run (this=0x17806e0, id=...) at ../../plasma/runnermanager.cpp:598
#11 0x00007f411a3de67e in KRunnerItemHandler::openUrl (url=...) at ../../../../../plasma/netbook/containments/sal/models/krunnermodel.cpp:78
#12 0x00007f411a3cfc12 in SearchLaunch::launch (this=0x15ce050, index=...) at ../../../../../plasma/netbook/containments/sal/sal.cpp:352
#13 0x00007f411a3d243a in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./sal.moc:96
#14 SearchLaunch::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./sal.moc:75
#15 0x00007f41331380ef in QMetaObject::activate (sender=0x169af20, m=m@entry=0x7f411a5ed9e0 <ItemView::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff34daaae0) at kernel/qobject.cpp:3539
#16 0x00007f411a3d97b5 in ItemView::itemActivated (this=<optimized out>, _t1=...) at ./itemview.moc:133
#17 0x00007f411a3d9951 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./itemview.moc:68
#18 ItemView::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./itemview.moc:61
#19 0x00007f41331380ef in QMetaObject::activate (sender=sender@entry=0x16e2fa0, m=m@entry=0x7f411a5ed660 <ItemContainer::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff34daac40) at kernel/qobject.cpp:3539
#20 0x00007f411a3d41e5 in ItemContainer::itemActivated (this=this@entry=0x16e2fa0, _t1=...) at ./itemcontainer.moc:146
#21 0x00007f411a3d4f76 in ItemContainer::itemClicked (this=0x16e2fa0) at ../../../../../plasma/netbook/containments/sal/itemcontainer.cpp:694
#22 0x00007f41331380ef in QMetaObject::activate (sender=sender@entry=0x4191750, m=m@entry=0x7f413646ace0 <Plasma::IconWidget::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#23 0x00007f4136140be3 in Plasma::IconWidget::clicked (this=this@entry=0x4191750) at ./iconwidget.moc:223
#24 0x00007f4136143440 in Plasma::IconWidget::mouseReleaseEvent (this=0x4191750, event=0x7fff34dab590) at ../../plasma/widgets/iconwidget.cpp:1455
#25 0x00007f4132a88e49 in QGraphicsItem::sceneEvent (this=0x4191760, event=0x7fff34dab590) at graphicsview/qgraphicsitem.cpp:6742
#26 0x00007f4132ab34d0 in sendMouseEvent (mouseEvent=0x7fff34dab590, this=0x13931b0) at graphicsview/qgraphicsscene.cpp:1295
#27 QGraphicsScenePrivate::sendMouseEvent (this=0x13931b0, mouseEvent=0x7fff34dab590) at graphicsview/qgraphicsscene.cpp:1274
#28 0x00007f4132abbc35 in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fff34dab590) at graphicsview/qgraphicsscene.cpp:4128
#29 0x00007f4132ac727c in QGraphicsScene::event (this=0x14bb0a0, event=0x7fff34dab590) at graphicsview/qgraphicsscene.cpp:3458
#30 0x00007f41324c98ec in QApplicationPrivate::notify_helper (this=this@entry=0x1256ca0, receiver=receiver@entry=0x14bb0a0, e=e@entry=0x7fff34dab590) at kernel/qapplication.cpp:4567
#31 0x00007f41324cc25b in QApplication::notify (this=this@entry=0x1233e20, receiver=receiver@entry=0x14bb0a0, e=e@entry=0x7fff34dab590) at kernel/qapplication.cpp:4428
#32 0x00007f4133de71a6 in KApplication::notify (this=0x1233e20, receiver=0x14bb0a0, event=0x7fff34dab590) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x00007f413312363e in QCoreApplication::notifyInternal (this=0x1233e20, receiver=0x14bb0a0, event=0x7fff34dab590, event@entry=0x7fff34dab4e0) at kernel/qcoreapplication.cpp:946
#34 0x00007f41324c8226 in sendSpontaneousEvent (event=event@entry=0x7fff34dab4e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#35 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff34dab590) at kernel/qapplication.cpp:5565
#36 0x00007f4132ade6a1 in QGraphicsView::mouseReleaseEvent (this=0x123cb00, event=0x7fff34dabec0) at graphicsview/qgraphicsview.cpp:3338
#37 0x00007f4132516a89 in QWidget::event (this=this@entry=0x123cb00, event=event@entry=0x7fff34dabec0) at kernel/qwidget.cpp:8375
#38 0x00007f41328c9316 in QFrame::event (this=0x123cb00, e=0x7fff34dabec0) at widgets/qframe.cpp:557
#39 0x00007f4132ae10db in QGraphicsView::viewportEvent (this=0x123cb00, event=0x7fff34dabec0) at graphicsview/qgraphicsview.cpp:2866
#40 0x00007f41331237a6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1256ca0, receiver=receiver@entry=0x14c6170, event=event@entry=0x7fff34dabec0) at kernel/qcoreapplication.cpp:1056
#41 0x00007f41324c98bc in QApplicationPrivate::notify_helper (this=this@entry=0x1256ca0, receiver=receiver@entry=0x14c6170, e=e@entry=0x7fff34dabec0) at kernel/qapplication.cpp:4563
#42 0x00007f41324cca33 in QApplication::notify (this=this@entry=0x1233e20, receiver=receiver@entry=0x14c6170, e=e@entry=0x7fff34dabec0) at kernel/qapplication.cpp:4110
#43 0x00007f4133de71a6 in KApplication::notify (this=0x1233e20, receiver=0x14c6170, event=0x7fff34dabec0) at ../../kdeui/kernel/kapplication.cpp:311
#44 0x00007f413312363e in QCoreApplication::notifyInternal (this=0x1233e20, receiver=receiver@entry=0x14c6170, event=event@entry=0x7fff34dabec0) at kernel/qcoreapplication.cpp:946
#45 0x00007f41324cf933 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#46 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x14c6170, event=event@entry=0x7fff34dabec0, alienWidget=alienWidget@entry=0x14c6170, nativeWidget=nativeWidget@entry=0x123cb00, buttonDown=buttonDown@entry=0x7f4132fa7308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#47 0x00007f4132544ec4 in QETWidget::translateMouseEvent (this=this@entry=0x123cb00, event=event@entry=0x7fff34dac640) at kernel/qapplication_x11.cpp:4631
#48 0x00007f4132543ef1 in QApplication::x11ProcessEvent (this=0x1233e20, event=event@entry=0x7fff34dac640) at kernel/qapplication_x11.cpp:3746
#49 0x00007f413256f0b2 in x11EventSourceDispatch (s=0x125c720, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#50 0x00007f41299abf05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f41299ac248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f41299ac304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f4133152016 in QEventDispatcherGlib::processEvents (this=0x11c7ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#54 0x00007f413256f1ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#55 0x00007f413312238f in QEventLoop::processEvents (this=this@entry=0x7fff34daca10, flags=...) at kernel/qeventloop.cpp:149
#56 0x00007f4133122618 in QEventLoop::exec (this=this@entry=0x7fff34daca10, flags=...) at kernel/qeventloop.cpp:204
#57 0x00007f4133127cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#58 0x00007f41324c7ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#59 0x00007f413687d46b in kdemain (argc=1, argv=0x7fff34dacd08) at ../../../../plasma/desktop/shell/main.cpp:126
#60 0x00007f4136499ea5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff34dacd08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff34daccf8) at libc-start.c:260
#61 0x0000000000400711 in _start ()

Possible duplicates by query: bug 324369, bug 320173, bug 314293, bug 314159, bug 314061.

Reported using DrKonqi