Bug 325274

Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.8.0-30-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
- Custom settings of the application: was trying to add new widgets to the panel ... tried to drag an icon to the place I wanted it then ..... crash

-- 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 0x7f2a3c20b7c0 (LWP 1973))]

Thread 5 (Thread 0x7f2a1e2c5700 (LWP 1975)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2a3504ab27 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f2a3504ab59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f2a2f743f8e in start_thread (arg=0x7f2a1e2c5700) at pthread_create.c:311
#4  0x00007f2a3bc06e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f29957a2700 (LWP 1976)):
#0  0x00007f2a2f74707f in __pthread_mutex_unlock_usercnt (mutex=0x7f2990000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f2a2f0805f1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a2f0408f3 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a2f0410fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2a2f041304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2a387e7036 in QEventDispatcherGlib::processEvents (this=0x7f29900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f2a387b738f in QEventLoop::processEvents (this=this@entry=0x7f29957a1d90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f2a387b7618 in QEventLoop::exec (this=this@entry=0x7f29957a1d90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f2a386b9410 in QThread::exec (this=this@entry=0x108f5a0) at thread/qthread.cpp:542
#9  0x00007f2a38798edf in QInotifyFileSystemWatcherEngine::run (this=0x108f5a0) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f2a386bbbec in QThreadPrivate::start (arg=0x108f5a0) at thread/qthread_unix.cpp:338
#11 0x00007f2a2f743f8e in start_thread (arg=0x7f29957a2700) at pthread_create.c:311
#12 0x00007f2a3bc06e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f298b631700 (LWP 1979)):
#0  0x00007f2a3bbfa3cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2a2f0411dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a2f041304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a387e7036 in QEventDispatcherGlib::processEvents (this=0x7f297c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f2a387b738f in QEventLoop::processEvents (this=this@entry=0x7f298b630d90, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f2a387b7618 in QEventLoop::exec (this=this@entry=0x7f298b630d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f2a386b9410 in QThread::exec (this=this@entry=0x1650be0) at thread/qthread.cpp:542
#7  0x00007f2a38798edf in QInotifyFileSystemWatcherEngine::run (this=0x1650be0) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00007f2a386bbbec in QThreadPrivate::start (arg=0x1650be0) at thread/qthread_unix.cpp:338
#9  0x00007f2a2f743f8e in start_thread (arg=0x7f298b631700) at pthread_create.c:311
#10 0x00007f2a3bc06e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f2983148700 (LWP 1983)):
#0  0x00007f2a3bbfa3cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2a2f0411dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a2f041304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a387e7036 in QEventDispatcherGlib::processEvents (this=0x7f29780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f2a387b738f in QEventLoop::processEvents (this=this@entry=0x7f2983147d80, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f2a387b7618 in QEventLoop::exec (this=this@entry=0x7f2983147d80, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f2a386b9410 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#7  0x00007f29891756e5 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#8  0x00007f2a386bbbec in QThreadPrivate::start (arg=0x1e0f680) at thread/qthread_unix.cpp:338
#9  0x00007f2a2f743f8e in start_thread (arg=0x7f2983148700) at pthread_create.c:311
#10 0x00007f2a3bc06e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f2a3c20b7c0 (LWP 1973)):
[KCrash Handler]
#6  isSignalConnected (signal_index=31, this=0x0) at kernel/qobject_p.h:239
#7  QMetaObject::activate (sender=sender@entry=0x46b3660, m=m@entry=0x7f299d8be720 <DeclarativeDragArea::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x7fffc43865f0) at kernel/qobject.cpp:3448
#8  0x00007f299d6b7401 in DeclarativeDragArea::drop (this=this@entry=0x46b3660, _t1=0) at moc_DeclarativeDragArea.cpp:234
#9  0x00007f299d6b9746 in DeclarativeDragArea::mouseMoveEvent (this=0x46b3660, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:234
#10 0x00007f299d6b9389 in DeclarativeDragArea::sceneEventFilter (this=0x46b3660, item=0x42b3110, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#11 0x00007f2a38143055 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x9247a0, item=item@entry=0x42b3110, event=event@entry=0x7fffc4386ea0) at graphicsview/qgraphicsscene.cpp:1159
#12 0x00007f2a38147a1e in QGraphicsScenePrivate::sendEvent (this=0x9247a0, item=0x42b3110, event=0x7fffc4386ea0) at graphicsview/qgraphicsscene.cpp:1211
#13 0x00007f2a38148640 in sendMouseEvent (mouseEvent=0x7fffc4386ea0, this=0x9247a0) at graphicsview/qgraphicsscene.cpp:1295
#14 QGraphicsScenePrivate::sendMouseEvent (this=0x9247a0, mouseEvent=0x7fffc4386ea0) at graphicsview/qgraphicsscene.cpp:1274
#15 0x00007f2a38150eec in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fffc4386ea0) at graphicsview/qgraphicsscene.cpp:4102
#16 0x00007f2a3815c470 in QGraphicsScene::event (this=0x828d10, event=0x7fffc4386ea0) at graphicsview/qgraphicsscene.cpp:3451
#17 0x00007f2a37b5e8ec in QApplicationPrivate::notify_helper (this=this@entry=0x7a0a50, receiver=receiver@entry=0x828d10, e=e@entry=0x7fffc4386ea0) at kernel/qapplication.cpp:4567
#18 0x00007f2a37b6125b in QApplication::notify (this=this@entry=0x788560, receiver=receiver@entry=0x828d10, e=e@entry=0x7fffc4386ea0) at kernel/qapplication.cpp:4428
#19 0x00007f2a3947c1a6 in KApplication::notify (this=0x788560, receiver=0x828d10, event=0x7fffc4386ea0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f2a387b863e in QCoreApplication::notifyInternal (this=0x788560, receiver=0x828d10, event=0x7fffc4386ea0, event@entry=0x7fffc4386dd0) at kernel/qcoreapplication.cpp:946
#21 0x00007f2a37b5d226 in sendSpontaneousEvent (event=event@entry=0x7fffc4386dd0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#22 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fffc4386ea0) at kernel/qapplication.cpp:5565
#23 0x00007f2a38174064 in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x3fbf070, event=event@entry=0x7fffc43878d0) at graphicsview/qgraphicsview.cpp:646
#24 0x00007f2a381743ee in QGraphicsView::mouseMoveEvent (this=0x1959150, event=0x7fffc43878d0) at graphicsview/qgraphicsview.cpp:3276
#25 0x00007f2a37bababb in QWidget::event (this=this@entry=0x1959150, event=event@entry=0x7fffc43878d0) at kernel/qwidget.cpp:8360
#26 0x00007f2a37f5e486 in QFrame::event (this=0x1959150, e=0x7fffc43878d0) at widgets/qframe.cpp:557
#27 0x00007f2a3817624b in QGraphicsView::viewportEvent (this=0x1959150, event=0x7fffc43878d0) at graphicsview/qgraphicsview.cpp:2866
#28 0x00007f2a387b87a6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x7a0a50, receiver=receiver@entry=0xa304e0, event=event@entry=0x7fffc43878d0) at kernel/qcoreapplication.cpp:1056
#29 0x00007f2a37b5e8bc in QApplicationPrivate::notify_helper (this=this@entry=0x7a0a50, receiver=receiver@entry=0xa304e0, e=e@entry=0x7fffc43878d0) at kernel/qapplication.cpp:4563
#30 0x00007f2a37b61a33 in QApplication::notify (this=this@entry=0x788560, receiver=receiver@entry=0xa304e0, e=e@entry=0x7fffc43878d0) at kernel/qapplication.cpp:4110
#31 0x00007f2a3947c1a6 in KApplication::notify (this=0x788560, receiver=0xa304e0, event=0x7fffc43878d0) at ../../kdeui/kernel/kapplication.cpp:311
#32 0x00007f2a387b863e in QCoreApplication::notifyInternal (this=0x788560, receiver=receiver@entry=0xa304e0, event=event@entry=0x7fffc43878d0) at kernel/qcoreapplication.cpp:946
#33 0x00007f2a37b64933 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#34 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xa304e0, event=event@entry=0x7fffc43878d0, alienWidget=alienWidget@entry=0xa304e0, nativeWidget=nativeWidget@entry=0x48040f0, buttonDown=buttonDown@entry=0x7f2a3863c308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#35 0x00007f2a37bd9e54 in QETWidget::translateMouseEvent (this=this@entry=0x48040f0, event=event@entry=0x7fffc4388050) at kernel/qapplication_x11.cpp:4631
#36 0x00007f2a37bd8e81 in QApplication::x11ProcessEvent (this=0x788560, event=event@entry=0x7fffc4388050) at kernel/qapplication_x11.cpp:3746
#37 0x00007f2a37c04042 in x11EventSourceDispatch (s=0x7a64e0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#38 0x00007f2a2f040f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f2a2f041248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f2a2f041304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f2a387e7016 in QEventDispatcherGlib::processEvents (this=0x71aad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#42 0x00007f2a37c0413e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#43 0x00007f2a387b738f in QEventLoop::processEvents (this=this@entry=0x1736ab0, flags=...) at kernel/qeventloop.cpp:149
#44 0x00007f2a387b7618 in QEventLoop::exec (this=this@entry=0x1736ab0, flags=...) at kernel/qeventloop.cpp:204
#45 0x00007f2a37beb526 in QDragManager::drag (this=0x3194f50, o=o@entry=0x1074110) at kernel/qdnd_x11.cpp:2032
#46 0x00007f2a37b70528 in QDrag::exec (this=this@entry=0x1074110, supportedActions=..., defaultDropAction=Qt::MoveAction) at kernel/qdrag.cpp:284
#47 0x00007f299d6b973c in DeclarativeDragArea::mouseMoveEvent (this=0x41b9570, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:233
#48 0x00007f299d6b9389 in DeclarativeDragArea::sceneEventFilter (this=0x41b9570, item=0x3984710, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#49 0x00007f2a38143055 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x9247a0, item=item@entry=0x3984710, event=event@entry=0x7fffc4388e30) at graphicsview/qgraphicsscene.cpp:1159
#50 0x00007f2a38147a1e in QGraphicsScenePrivate::sendEvent (this=0x9247a0, item=0x3984710, event=0x7fffc4388e30) at graphicsview/qgraphicsscene.cpp:1211
#51 0x00007f2a38148640 in sendMouseEvent (mouseEvent=0x7fffc4388e30, this=0x9247a0) at graphicsview/qgraphicsscene.cpp:1295
#52 QGraphicsScenePrivate::sendMouseEvent (this=0x9247a0, mouseEvent=0x7fffc4388e30) at graphicsview/qgraphicsscene.cpp:1274
#53 0x00007f2a38150eec in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fffc4388e30) at graphicsview/qgraphicsscene.cpp:4102
#54 0x00007f2a3815c470 in QGraphicsScene::event (this=0x828d10, event=0x7fffc4388e30) at graphicsview/qgraphicsscene.cpp:3451
#55 0x00007f2a37b5e8ec in QApplicationPrivate::notify_helper (this=this@entry=0x7a0a50, receiver=receiver@entry=0x828d10, e=e@entry=0x7fffc4388e30) at kernel/qapplication.cpp:4567
#56 0x00007f2a37b6125b in QApplication::notify (this=this@entry=0x788560, receiver=receiver@entry=0x828d10, e=e@entry=0x7fffc4388e30) at kernel/qapplication.cpp:4428
#57 0x00007f2a3947c1a6 in KApplication::notify (this=0x788560, receiver=0x828d10, event=0x7fffc4388e30) at ../../kdeui/kernel/kapplication.cpp:311
#58 0x00007f2a387b863e in QCoreApplication::notifyInternal (this=0x788560, receiver=0x828d10, event=0x7fffc4388e30, event@entry=0x7fffc4388d60) at kernel/qcoreapplication.cpp:946
#59 0x00007f2a37b5d226 in sendSpontaneousEvent (event=event@entry=0x7fffc4388d60, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#60 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fffc4388e30) at kernel/qapplication.cpp:5565
#61 0x00007f2a38174064 in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x3f17af0, event=event@entry=0x7fffc4389860) at graphicsview/qgraphicsview.cpp:646
#62 0x00007f2a381743ee in QGraphicsView::mouseMoveEvent (this=0x1460c10, event=0x7fffc4389860) at graphicsview/qgraphicsview.cpp:3276
#63 0x00007f2a37bababb in QWidget::event (this=this@entry=0x1460c10, event=event@entry=0x7fffc4389860) at kernel/qwidget.cpp:8360
#64 0x00007f2a37f5e486 in QFrame::event (this=0x1460c10, e=0x7fffc4389860) at widgets/qframe.cpp:557
#65 0x00007f2a3817624b in QGraphicsView::viewportEvent (this=0x1460c10, event=0x7fffc4389860) at graphicsview/qgraphicsview.cpp:2866
#66 0x00007f2a387b87a6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x7a0a50, receiver=receiver@entry=0x400e840, event=event@entry=0x7fffc4389860) at kernel/qcoreapplication.cpp:1056
#67 0x00007f2a37b5e8bc in QApplicationPrivate::notify_helper (this=this@entry=0x7a0a50, receiver=receiver@entry=0x400e840, e=e@entry=0x7fffc4389860) at kernel/qapplication.cpp:4563
#68 0x00007f2a37b61a33 in QApplication::notify (this=this@entry=0x788560, receiver=receiver@entry=0x400e840, e=e@entry=0x7fffc4389860) at kernel/qapplication.cpp:4110
#69 0x00007f2a3947c1a6 in KApplication::notify (this=0x788560, receiver=0x400e840, event=0x7fffc4389860) at ../../kdeui/kernel/kapplication.cpp:311
#70 0x00007f2a387b863e in QCoreApplication::notifyInternal (this=0x788560, receiver=receiver@entry=0x400e840, event=event@entry=0x7fffc4389860) at kernel/qcoreapplication.cpp:946
#71 0x00007f2a37b64933 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#72 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x400e840, event=event@entry=0x7fffc4389860, alienWidget=alienWidget@entry=0x400e840, nativeWidget=nativeWidget@entry=0x43335d0, buttonDown=buttonDown@entry=0x7f2a3863c308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#73 0x00007f2a37bd9e54 in QETWidget::translateMouseEvent (this=this@entry=0x43335d0, event=event@entry=0x7fffc4389fe0) at kernel/qapplication_x11.cpp:4631
#74 0x00007f2a37bd8e81 in QApplication::x11ProcessEvent (this=0x788560, event=event@entry=0x7fffc4389fe0) at kernel/qapplication_x11.cpp:3746
#75 0x00007f2a37c04042 in x11EventSourceDispatch (s=0x7a64e0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#76 0x00007f2a2f040f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#77 0x00007f2a2f041248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#78 0x00007f2a2f041304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#79 0x00007f2a387e7016 in QEventDispatcherGlib::processEvents (this=0x71aad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#80 0x00007f2a37c0413e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#81 0x00007f2a387b738f in QEventLoop::processEvents (this=this@entry=0x7fffc438a3b0, flags=...) at kernel/qeventloop.cpp:149
#82 0x00007f2a387b7618 in QEventLoop::exec (this=this@entry=0x7fffc438a3b0, flags=...) at kernel/qeventloop.cpp:204
#83 0x00007f2a387bccf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#84 0x00007f2a37b5cffc in QApplication::exec () at kernel/qapplication.cpp:3828
#85 0x00007f2a3bf1246b in kdemain (argc=1, argv=0x7fffc438a6a8) at ../../../../plasma/desktop/shell/main.cpp:126
#86 0x00007f2a3bb2eea5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fffc438a6a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc438a698) at libc-start.c:260
#87 0x0000000000400711 in _start ()

Possible duplicates by query: bug 322930, bug 320686, bug 318857, bug 318171, bug 317593.

Reported using DrKonqi