Bug 310004

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.3
Qt Version: 4.8.3
Operating System: Linux 3.5.0-18-generic x86_64
Distribution: Ubuntu 12.10

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

When adding a new widget to the panel and clicking "Get new widgets", the crash happens

-- 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 0x7f1699005780 (LWP 1995))]

Thread 4 (Thread 0x7f16871ef700 (LWP 1997)):
#0  0x00007f16a006c9b5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f16a006cc59 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16a002f066 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16a002fc64 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f16a002fea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f16a903ec16 in QEventDispatcherGlib::processEvents (this=0x7f16800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f16a900f2bf in QEventLoop::processEvents (this=this@entry=0x7f16871eedd0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f16a900f548 in QEventLoop::exec (this=0x7f16871eedd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f16a8f10b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f16a8fef9af in QInotifyFileSystemWatcherEngine::run (this=0x1d941a0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f16a8f13aec in QThreadPrivate::start (arg=0x1d941a0) at thread/qthread_unix.cpp:338
#11 0x00007f16a072ee9a in start_thread (arg=0x7f16871ef700) at pthread_create.c:308
#12 0x00007f16ac39bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f1685af6700 (LWP 1998)):
#0  __pthread_mutex_lock (mutex=0x7f1678000a60) at pthread_mutex_lock.c:87
#1  0x00007f16a006cc31 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16a002fd3d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16a002fea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f16a903ec16 in QEventDispatcherGlib::processEvents (this=0x7f16780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f16a900f2bf in QEventLoop::processEvents (this=this@entry=0x7f1685af5dd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f16a900f548 in QEventLoop::exec (this=0x7f1685af5dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f16a8f10b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f16a8fef9af in QInotifyFileSystemWatcherEngine::run (this=0x2402d10) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f16a8f13aec in QThreadPrivate::start (arg=0x2402d10) at thread/qthread_unix.cpp:338
#10 0x00007f16a072ee9a in start_thread (arg=0x7f1685af6700) at pthread_create.c:308
#11 0x00007f16ac39bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f167e757700 (LWP 2001)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16a6095cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f16a6095d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f16a072ee9a in start_thread (arg=0x7f167e757700) at pthread_create.c:308
#4  0x00007f16ac39bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f1699005780 (LWP 1995)):
[KCrash Handler]
#6  0x00007f16aac03dd4 in QDeclarativeItem::~QDeclarativeItem (this=0x7d534d0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f167d92b311 in ~QDeclarativeElement (this=0x7d534d0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x7d534d0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f16a9025468 in QObject::event (this=0x7d534d0, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007f16a83b7e9c in QApplicationPrivate::notify_helper (this=this@entry=0x1c9a6d0, receiver=receiver@entry=0x7d534d0, e=e@entry=0x4e8dc60) at kernel/qapplication.cpp:4562
#11 0x00007f16a83bc30a in QApplication::notify (this=0x1c89b40, receiver=0x7d534d0, e=0x4e8dc60) at kernel/qapplication.cpp:4423
#12 0x00007f16a9cc91d6 in KApplication::notify (this=0x1c89b40, receiver=0x7d534d0, event=0x4e8dc60) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f16a901056e in QCoreApplication::notifyInternal (this=0x1c89b40, receiver=receiver@entry=0x7d534d0, event=event@entry=0x4e8dc60) at kernel/qcoreapplication.cpp:915
#14 0x00007f16a90143f1 in sendEvent (event=0x4e8dc60, receiver=0x7d534d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1c221f0) at kernel/qcoreapplication.cpp:1539
#16 0x00007f16a903ea63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#17 postEventSourceDispatch (s=0x1c9e280) at kernel/qeventdispatcher_glib.cpp:279
#18 0x00007f16a002fab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f16a002fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f16a002fea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f16a903ebf6 in QEventDispatcherGlib::processEvents (this=0x1c23ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#22 0x00007f16a845cc1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007f16a900f2bf in QEventLoop::processEvents (this=this@entry=0x55d2df0, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f16a900f548 in QEventLoop::exec (this=0x55d2df0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007f16a84437f6 in QDragManager::drag (this=0x4a851b0, o=<optimized out>) at kernel/qdnd_x11.cpp:2032
#26 0x00007f16a83c94c8 in QDrag::exec (this=0x5609990, supportedActions=..., defaultDropAction=Qt::MoveAction) at kernel/qdrag.cpp:284
#27 0x00007f1673195877 in DeclarativeDragArea::mouseMoveEvent (this=0x7c47930, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:233
#28 0x00007f1673195949 in DeclarativeDragArea::sceneEventFilter (this=0x7c47930, item=0x7c509e0, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#29 0x00007f16a899b705 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x1daea30, item=item@entry=0x7c509e0, event=event@entry=0x7fffb5b27240) at graphicsview/qgraphicsscene.cpp:1159
#30 0x00007f16a89a0d2e in QGraphicsScenePrivate::sendEvent (this=0x1daea30, item=0x7c509e0, event=0x7fffb5b27240) at graphicsview/qgraphicsscene.cpp:1211
#31 0x00007f16a89a1950 in sendMouseEvent (mouseEvent=0x7fffb5b27240, this=0x1daea30) at graphicsview/qgraphicsscene.cpp:1295
#32 QGraphicsScenePrivate::sendMouseEvent (this=0x1daea30, mouseEvent=0x7fffb5b27240) at graphicsview/qgraphicsscene.cpp:1274
#33 0x00007f16a89a248c in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fffb5b27240) at graphicsview/qgraphicsscene.cpp:4102
#34 0x00007f16a89b5190 in QGraphicsScene::event (this=0x1edd940, event=0x7fffb5b27240) at graphicsview/qgraphicsscene.cpp:3451
#35 0x00007f16a83b7e9c in QApplicationPrivate::notify_helper (this=this@entry=0x1c9a6d0, receiver=receiver@entry=0x1edd940, e=e@entry=0x7fffb5b27240) at kernel/qapplication.cpp:4562
#36 0x00007f16a83bc30a in QApplication::notify (this=0x1c89b40, receiver=0x1edd940, e=0x7fffb5b27240) at kernel/qapplication.cpp:4423
#37 0x00007f16a9cc91d6 in KApplication::notify (this=0x1c89b40, receiver=0x1edd940, event=0x7fffb5b27240) at ../../kdeui/kernel/kapplication.cpp:311
#38 0x00007f16a901056e in QCoreApplication::notifyInternal (this=0x1c89b40, receiver=0x1edd940, event=0x7fffb5b27240) at kernel/qcoreapplication.cpp:915
#39 0x00007f16a89c85c4 in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x32ddca0, event=event@entry=0x7fffb5b27c70) at graphicsview/qgraphicsview.cpp:646
#40 0x00007f16a89cb63e in QGraphicsView::mouseMoveEvent (this=0x5505130, event=0x7fffb5b27c70) at graphicsview/qgraphicsview.cpp:3276
#41 0x00007f16a8407884 in QWidget::event (this=0x5505130, event=0x7fffb5b27c70) at kernel/qwidget.cpp:8356
#42 0x00007f16a87b6b66 in QFrame::event (this=0x5505130, e=0x7fffb5b27c70) at widgets/qframe.cpp:557
#43 0x00007f16a89ce95b in QGraphicsView::viewportEvent (this=0x5505130, event=0x7fffb5b27c70) at graphicsview/qgraphicsview.cpp:2866
#44 0x00007f16a90106d6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x1c86710, event=0x7fffb5b27c70) at kernel/qcoreapplication.cpp:1025
#45 0x00007f16a83b7e6c in QApplicationPrivate::notify_helper (this=this@entry=0x1c9a6d0, receiver=receiver@entry=0x1c86710, e=e@entry=0x7fffb5b27c70) at kernel/qapplication.cpp:4558
#46 0x00007f16a83bcb6b in QApplication::notify (this=<optimized out>, receiver=0x1c86710, e=0x7fffb5b27c70) at kernel/qapplication.cpp:4105
#47 0x00007f16a9cc91d6 in KApplication::notify (this=0x1c89b40, receiver=0x1c86710, event=0x7fffb5b27c70) at ../../kdeui/kernel/kapplication.cpp:311
#48 0x00007f16a901056e in QCoreApplication::notifyInternal (this=0x1c89b40, receiver=0x1c86710, event=0x7fffb5b27c70) at kernel/qcoreapplication.cpp:915
#49 0x00007f16a83b8cd3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#50 QApplicationPrivate::sendMouseEvent (receiver=0x1c86710, event=0x7fffb5b27c70, alienWidget=0x1c86710, nativeWidget=0x29c4fa0, buttonDown=0x7f16a8e94308 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#51 0x00007f16a8436554 in QETWidget::translateMouseEvent (this=this@entry=0x29c4fa0, event=event@entry=0x7fffb5b283f0) at kernel/qapplication_x11.cpp:4622
#52 0x00007f16a843544f in QApplication::x11ProcessEvent (this=0x1c89b40, event=0x7fffb5b283f0) at kernel/qapplication_x11.cpp:3737
#53 0x00007f16a845cfa2 in x11EventSourceDispatch (s=0x1c9ad20, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#54 0x00007f16a002fab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007f16a002fde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007f16a002fea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007f16a903ebf6 in QEventDispatcherGlib::processEvents (this=0x1c23ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#58 0x00007f16a845cc1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#59 0x00007f16a900f2bf in QEventLoop::processEvents (this=this@entry=0x7fffb5b287c0, flags=...) at kernel/qeventloop.cpp:149
#60 0x00007f16a900f548 in QEventLoop::exec (this=0x7fffb5b287c0, flags=...) at kernel/qeventloop.cpp:204
#61 0x00007f16a9014708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#62 0x00007f16ac6a2035 in kdemain (argc=1, argv=0x7fffb5b28ab8) at ../../../../plasma/desktop/shell/main.cpp:120
#63 0x00007f16ac2c976d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fffb5b28ab8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb5b28aa8) at libc-start.c:226
#64 0x00000000004006d1 in _start ()

This bug may be a duplicate of or related to bug 309809.

Possible duplicates by query: bug 309809, bug 309807, bug 309746, bug 309654, bug 309632.

Reported using DrKonqi