Bug 307660

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.1
Qt Version: 4.8.2
Operating System: Linux 3.2.0-31-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

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

Before the crash, I had just installed the latest sotfware updates.
I had launched a reboot of my machine and got this crash while my computer was shuting down.

-- 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 0x7f223f876780 (LWP 1571))]

Thread 5 (Thread 0x7f222060c700 (LWP 1645)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f2238b40222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f2238b40259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f22333c6e9a in start_thread (arg=0x7f222060c700) at pthread_create.c:308
#4  0x00007f223f15e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f2217721700 (LWP 1647)):
#0  0x00007f223f152b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f2232cca036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2232cca164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f223bd8d906 in QEventDispatcherGlib::processEvents (this=0x7f22100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f223bd5ce42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f223bd5d097 in QEventLoop::exec (this=0x7f2217720dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f223bc5c057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f223bd3cb4f in QInotifyFileSystemWatcherEngine::run (this=0x256eb20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f223bc5f07b in QThreadPrivate::start (arg=0x256eb20) at thread/qthread_unix.cpp:307
#9  0x00007f22333c6e9a in start_thread (arg=0x7f2217721700) at pthread_create.c:308
#10 0x00007f223f15e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f2216147700 (LWP 1648)):
#0  __pthread_mutex_unlock (mutex=0x1) at pthread_mutex_unlock.c:289
#1  0x00007f2232d055d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2232cc9c49 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2232cca0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2232cca164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f223bd8d906 in QEventDispatcherGlib::processEvents (this=0x7f22080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f223bd5ce42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f223bd5d097 in QEventLoop::exec (this=0x7f2216146dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f223bc5c057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f223bd3cb4f in QInotifyFileSystemWatcherEngine::run (this=0x20a8170) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f223bc5f07b in QThreadPrivate::start (arg=0x20a8170) at thread/qthread_unix.cpp:307
#11 0x00007f22333c6e9a in start_thread (arg=0x7f2216147700) at pthread_create.c:308
#12 0x00007f223f15e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f220f7fe700 (LWP 1653)):
#0  0x00007f22333ca05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7f220400c7c0) at pthread_mutex_unlock.c:290
#2  0x00007f2232d055d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2232cc91f8 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2232cc9f04 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2232cca49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f22145b5406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f2232ceb9e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f22333c6e9a in start_thread (arg=0x7f220f7fe700) at pthread_create.c:308
#9  0x00007f223f15e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f223f876780 (LWP 1571)):
[KCrash Handler]
#6  isSignalConnected (signal_index=31, this=0x0) at kernel/qobject_p.h:229
#7  QMetaObject::activate (sender=0x39a7c60, m=<optimized out>, local_signal_index=6, argv=0x7fffbab95050) at kernel/qobject.cpp:3456
#8  0x00007f21fa1c51b1 in DeclarativeDragArea::drop (this=<optimized out>, _t1=0) at moc_DeclarativeDragArea.cpp:234
#9  0x00007f21fa1c7966 in DeclarativeDragArea::mouseMoveEvent (this=0x39a7c60, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:234
#10 0x00007f21fa1c7a39 in DeclarativeDragArea::sceneEventFilter (this=0x39a7c60, item=0x5728940, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#11 0x00007f223b6e72b5 in QGraphicsScenePrivate::filterDescendantEvent (this=<optimized out>, item=0x5728940, event=0x7fffbab95a20) at graphicsview/qgraphicsscene.cpp:1159
#12 0x00007f223b6ed7be in QGraphicsScenePrivate::sendEvent (this=0x1b75ac0, item=0x5728940, event=0x7fffbab95a20) at graphicsview/qgraphicsscene.cpp:1211
#13 0x00007f223b6ee40a in QGraphicsScenePrivate::sendMouseEvent (this=0x1b75ac0, mouseEvent=0x7fffbab95a20) at graphicsview/qgraphicsscene.cpp:1295
#14 0x00007f223b6eef3c in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fffbab95a20) at graphicsview/qgraphicsscene.cpp:4102
#15 0x00007f223b6fcfbb in QGraphicsScene::event (this=0x1a127b0, event=0x7fffbab95a20) at graphicsview/qgraphicsscene.cpp:3451
#16 0x00007f223b0df7b4 in notify_helper (e=0x7fffbab95a20, receiver=0x1a127b0, this=0x1a12d40) at kernel/qapplication.cpp:4556
#17 QApplicationPrivate::notify_helper (this=0x1a12d40, receiver=0x1a127b0, e=0x7fffbab95a20) at kernel/qapplication.cpp:4528
#18 0x00007f223b0e4583 in QApplication::notify (this=0x1a05b90, receiver=0x1a127b0, e=0x7fffbab95a20) at kernel/qapplication.cpp:4417
#19 0x00007f223ca414a6 in KApplication::notify (this=0x1a05b90, receiver=0x1a127b0, event=0x7fffbab95a20) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f223bd5e30c in QCoreApplication::notifyInternal (this=0x1a05b90, receiver=0x1a127b0, event=0x7fffbab95a20) at kernel/qcoreapplication.cpp:915
#21 0x00007f223b716ee9 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x577b4c0, event=0x7fffbab96530) at graphicsview/qgraphicsview.cpp:646
#22 0x00007f223b71711e in QGraphicsView::mouseMoveEvent (this=0x4383040, event=0x7fffbab96530) at graphicsview/qgraphicsview.cpp:3276
#23 0x00007f223b12ffe8 in QWidget::event (this=0x4383040, event=0x7fffbab96530) at kernel/qwidget.cpp:8356
#24 0x00007f223b4f0836 in QFrame::event (this=0x4383040, e=0x7fffbab96530) at widgets/qframe.cpp:557
#25 0x00007f223b71b2eb in QGraphicsView::viewportEvent (this=0x4383040, event=0x7fffbab96530) at graphicsview/qgraphicsview.cpp:2866
#26 0x00007f223bd5e498 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x5829150, event=0x7fffbab96530) at kernel/qcoreapplication.cpp:1025
#27 0x00007f223b0df77f in notify_helper (e=0x7fffbab96530, receiver=0x5829150, this=0x1a12d40) at kernel/qapplication.cpp:4552
#28 QApplicationPrivate::notify_helper (this=0x1a12d40, receiver=0x5829150, e=0x7fffbab96530) at kernel/qapplication.cpp:4528
#29 0x00007f223b0e4f2f in QApplication::notify (this=<optimized out>, receiver=0x5829150, e=0x7fffbab96530) at kernel/qapplication.cpp:4099
#30 0x00007f223ca414a6 in KApplication::notify (this=0x1a05b90, receiver=0x5829150, event=0x7fffbab96530) at ../../kdeui/kernel/kapplication.cpp:311
#31 0x00007f223bd5e30c in QCoreApplication::notifyInternal (this=0x1a05b90, receiver=0x5829150, event=0x7fffbab96530) at kernel/qcoreapplication.cpp:915
#32 0x00007f223b0e0782 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#33 QApplicationPrivate::sendMouseEvent (receiver=0x5829150, event=0x7fffbab96530, alienWidget=0x5829150, nativeWidget=0x37b6540, buttonDown=0x5829150, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3167
#34 0x00007f223b15fb15 in QETWidget::translateMouseEvent (this=0x37b6540, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#35 0x00007f223b15eace in QApplication::x11ProcessEvent (this=0x1a05b90, event=0x7fffbab96e00) at kernel/qapplication_x11.cpp:3732
#36 0x00007f223b188052 in x11EventSourceDispatch (s=0x1a18000, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#37 0x00007f2232cc9d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f2232cca0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f2232cca164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f223bd8d89f in QEventDispatcherGlib::processEvents (this=0x19a2ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#41 0x00007f223b187cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0x00007f223bd5ce42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#43 0x00007f223bd5d097 in QEventLoop::exec (this=0x3dd5fb0, flags=...) at kernel/qeventloop.cpp:204
#44 0x00007f223b16e103 in QDragManager::drag (this=0x3a12d80, o=<optimized out>) at kernel/qdnd_x11.cpp:2024
#45 0x00007f223b0f1368 in QDrag::exec (this=0x361d240, supportedActions=..., defaultDropAction=Qt::MoveAction) at kernel/qdrag.cpp:284
#46 0x00007f21fa1c795c in DeclarativeDragArea::mouseMoveEvent (this=0x585f480, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:233
#47 0x00007f21fa1c7a39 in DeclarativeDragArea::sceneEventFilter (this=0x585f480, item=0x58305a0, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#48 0x00007f223b6e72b5 in QGraphicsScenePrivate::filterDescendantEvent (this=<optimized out>, item=0x58305a0, event=0x7fffbab97ce0) at graphicsview/qgraphicsscene.cpp:1159
#49 0x00007f223b6ed7be in QGraphicsScenePrivate::sendEvent (this=0x1b75ac0, item=0x58305a0, event=0x7fffbab97ce0) at graphicsview/qgraphicsscene.cpp:1211
#50 0x00007f223b6ee40a in QGraphicsScenePrivate::sendMouseEvent (this=0x1b75ac0, mouseEvent=0x7fffbab97ce0) at graphicsview/qgraphicsscene.cpp:1295
#51 0x00007f223b6eef3c in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fffbab97ce0) at graphicsview/qgraphicsscene.cpp:4102
#52 0x00007f223b6fcfbb in QGraphicsScene::event (this=0x1a127b0, event=0x7fffbab97ce0) at graphicsview/qgraphicsscene.cpp:3451
#53 0x00007f223b0df7b4 in notify_helper (e=0x7fffbab97ce0, receiver=0x1a127b0, this=0x1a12d40) at kernel/qapplication.cpp:4556
#54 QApplicationPrivate::notify_helper (this=0x1a12d40, receiver=0x1a127b0, e=0x7fffbab97ce0) at kernel/qapplication.cpp:4528
#55 0x00007f223b0e4583 in QApplication::notify (this=0x1a05b90, receiver=0x1a127b0, e=0x7fffbab97ce0) at kernel/qapplication.cpp:4417
#56 0x00007f223ca414a6 in KApplication::notify (this=0x1a05b90, receiver=0x1a127b0, event=0x7fffbab97ce0) at ../../kdeui/kernel/kapplication.cpp:311
#57 0x00007f223bd5e30c in QCoreApplication::notifyInternal (this=0x1a05b90, receiver=0x1a127b0, event=0x7fffbab97ce0) at kernel/qcoreapplication.cpp:915
#58 0x00007f223b716ee9 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x5a97f00, event=0x7fffbab987f0) at graphicsview/qgraphicsview.cpp:646
#59 0x00007f223b71711e in QGraphicsView::mouseMoveEvent (this=0x4f05c90, event=0x7fffbab987f0) at graphicsview/qgraphicsview.cpp:3276
#60 0x00007f223b12ffe8 in QWidget::event (this=0x4f05c90, event=0x7fffbab987f0) at kernel/qwidget.cpp:8356
#61 0x00007f223b4f0836 in QFrame::event (this=0x4f05c90, e=0x7fffbab987f0) at widgets/qframe.cpp:557
#62 0x00007f223b71b2eb in QGraphicsView::viewportEvent (this=0x4f05c90, event=0x7fffbab987f0) at graphicsview/qgraphicsview.cpp:2866
#63 0x00007f223bd5e498 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x56883b0, event=0x7fffbab987f0) at kernel/qcoreapplication.cpp:1025
#64 0x00007f223b0df77f in notify_helper (e=0x7fffbab987f0, receiver=0x56883b0, this=0x1a12d40) at kernel/qapplication.cpp:4552
#65 QApplicationPrivate::notify_helper (this=0x1a12d40, receiver=0x56883b0, e=0x7fffbab987f0) at kernel/qapplication.cpp:4528
#66 0x00007f223b0e4f2f in QApplication::notify (this=<optimized out>, receiver=0x56883b0, e=0x7fffbab987f0) at kernel/qapplication.cpp:4099
#67 0x00007f223ca414a6 in KApplication::notify (this=0x1a05b90, receiver=0x56883b0, event=0x7fffbab987f0) at ../../kdeui/kernel/kapplication.cpp:311
#68 0x00007f223bd5e30c in QCoreApplication::notifyInternal (this=0x1a05b90, receiver=0x56883b0, event=0x7fffbab987f0) at kernel/qcoreapplication.cpp:915
#69 0x00007f223b0e0782 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#70 QApplicationPrivate::sendMouseEvent (receiver=0x56883b0, event=0x7fffbab987f0, alienWidget=0x56883b0, nativeWidget=0x59eec60, buttonDown=0x56883b0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3167
#71 0x00007f223b15fb15 in QETWidget::translateMouseEvent (this=0x59eec60, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#72 0x00007f223b15eace in QApplication::x11ProcessEvent (this=0x1a05b90, event=0x7fffbab990c0) at kernel/qapplication_x11.cpp:3732
#73 0x00007f223b188052 in x11EventSourceDispatch (s=0x1a18000, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#74 0x00007f2232cc9d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f2232cca0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f2232cca164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#77 0x00007f223bd8d89f in QEventDispatcherGlib::processEvents (this=0x19a2ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#78 0x00007f223b187cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#79 0x00007f223bd5ce42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#80 0x00007f223bd5d097 in QEventLoop::exec (this=0x7fffbab99460, flags=...) at kernel/qeventloop.cpp:204
#81 0x00007f223bd623e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#82 0x00007f223f464ba3 in kdemain (argc=1, argv=0x7fffbab99848) at ../../../../plasma/desktop/shell/main.cpp:120
#83 0x00007f223f08d76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffbab99848, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbab99838) at libc-start.c:226
#84 0x0000000000400671 in _start ()

Possible duplicates by query: bug 307487.

Reported using DrKonqi