Bug 316992

Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.1
Qt Version: 4.8.4
Operating System: Linux 3.8.3-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

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

First digiKam crashed, and DrKonqi came up, generating a backtrace, so the system load was high. Soon thereafter Plasma crashed.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbeb438a780 (LWP 4913))]

Thread 4 (Thread 0x7fbead716700 (LWP 4915)):
#0  0x000000302280b8a4 in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x0000003b90782587 in ?? () from /usr/lib64/qt4/libQtScript.so.4
#2  0x0000003b907825b9 in ?? () from /usr/lib64/qt4/libQtScript.so.4
#3  0x0000003022807dff in start_thread () from /lib64/libpthread.so.0
#4  0x00000030220e228d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fbe2164d700 (LWP 4917)):
#0  0x000000381b6470ea in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x000000381b64755a in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#2  0x0000003fdc0c98e6 in ?? () from /usr/lib64/libgio-2.0.so.0
#3  0x000000381b669be5 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x0000003022807dff in start_thread () from /lib64/libpthread.so.0
#5  0x00000030220e228d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fbe13fff700 (LWP 4920)):
#0  0x000000381b682ad0 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x000000381b6469aa in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x000000381b64702b in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x000000381b647224 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x0000003f3a9a080e in QEventDispatcherGlib::processEvents (this=0x7fbe0c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x0000003f3a971cdf in QEventLoop::processEvents (this=this@entry=0x7fbe13ffee40, flags=...) at kernel/qeventloop.cpp:149
#6  0x0000003f3a971f60 in QEventLoop::exec (this=0x7fbe13ffee40, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003f3a878480 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#8  0x0000003f3a952d4f in QInotifyFileSystemWatcherEngine::run (this=0x1f232d0) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x0000003f3a87b37c in QThreadPrivate::start (arg=0x1f232d0) at thread/qthread_unix.cpp:338
#10 0x0000003022807dff in start_thread () from /lib64/libpthread.so.0
#11 0x00000030220e228d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fbeb438a780 (LWP 4913)):
[KCrash Handler]
#6  0x0000003f3a986f69 in QMetaObject::changeGuard (ptr=0x58da390, o=0x54bf780) at kernel/qobject.cpp:445
#7  0x0000003ae7397834 in operator= (p=<optimized out>, this=0x58da390) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#8  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0x58da1b0, event=0x7fff7c7af0e0) at graphicsview/qgraphicsproxywidget.cpp:284
#9  0x0000003ae7377418 in QGraphicsItem::sceneEvent (this=0x52087f0, event=0x7fff7c7af0e0) at graphicsview/qgraphicsitem.cpp:6742
#10 0x0000003ae73a01f8 in sendMouseEvent (mouseEvent=0x7fff7c7af0e0, this=0x16beae0) at graphicsview/qgraphicsscene.cpp:1295
#11 QGraphicsScenePrivate::sendMouseEvent (this=0x16beae0, mouseEvent=0x7fff7c7af0e0) at graphicsview/qgraphicsscene.cpp:1274
#12 0x0000003ae73a0bf5 in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fff7c7af0e0) at graphicsview/qgraphicsscene.cpp:4128
#13 0x0000003ae73b36b4 in QGraphicsScene::event (this=0x176ef70, event=0x7fff7c7af0e0) at graphicsview/qgraphicsscene.cpp:3458
#14 0x0000003ae6dcb66c in QApplicationPrivate::notify_helper (this=this@entry=0x1643220, receiver=receiver@entry=0x176ef70, e=e@entry=0x7fff7c7af0e0) at kernel/qapplication.cpp:4562
#15 0x0000003ae6dcfa2a in QApplication::notify (this=0x1627110, receiver=0x176ef70, e=0x7fff7c7af0e0) at kernel/qapplication.cpp:4423
#16 0x000000367fe423b6 in KApplication::notify (this=0x1627110, receiver=0x176ef70, event=0x7fff7c7af0e0) at /var/tmp/portage/kde-base/kdelibs-4.10.1/work/kdelibs-4.10.1/kdeui/kernel/kapplication.cpp:311
#17 0x0000003f3a972f4d in QCoreApplication::notifyInternal (this=0x1627110, receiver=0x176ef70, event=0x7fff7c7af0e0) at kernel/qcoreapplication.cpp:946
#18 0x0000003ae73c9549 in QGraphicsView::mouseReleaseEvent (this=0x1896f50, event=0x7fff7c7afa20) at graphicsview/qgraphicsview.cpp:3338
#19 0x0000003ae6e1a370 in QWidget::event (this=0x1896f50, event=0x7fff7c7afa20) at kernel/qwidget.cpp:8375
#20 0x0000003ae71ba636 in QFrame::event (this=0x1896f50, e=0x7fff7c7afa20) at widgets/qframe.cpp:557
#21 0x0000003ae73cc95b in QGraphicsView::viewportEvent (this=0x1896f50, event=0x7fff7c7afa20) at graphicsview/qgraphicsview.cpp:2866
#22 0x0000003f3a9730b5 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2d7f130, event=0x7fff7c7afa20) at kernel/qcoreapplication.cpp:1056
#23 0x0000003ae6dcb63c in QApplicationPrivate::notify_helper (this=this@entry=0x1643220, receiver=receiver@entry=0x2d7f130, e=e@entry=0x7fff7c7afa20) at kernel/qapplication.cpp:4558
#24 0x0000003ae6dd0281 in QApplication::notify (this=<optimized out>, receiver=0x2d7f130, e=0x7fff7c7afa20) at kernel/qapplication.cpp:4105
#25 0x000000367fe423b6 in KApplication::notify (this=0x1627110, receiver=0x2d7f130, event=0x7fff7c7afa20) at /var/tmp/portage/kde-base/kdelibs-4.10.1/work/kdelibs-4.10.1/kdeui/kernel/kapplication.cpp:311
#26 0x0000003f3a972f4d in QCoreApplication::notifyInternal (this=0x1627110, receiver=0x2d7f130, event=0x7fff7c7afa20) at kernel/qcoreapplication.cpp:946
#27 0x0000003ae6dcc442 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#28 QApplicationPrivate::sendMouseEvent (receiver=0x2d7f130, event=0x7fff7c7afa20, alienWidget=0x2d7f130, nativeWidget=0x1896f50, buttonDown=0x2d7f130, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#29 0x0000003ae6e458fc in QETWidget::translateMouseEvent (this=this@entry=0x1896f50, event=event@entry=0x7fff7c7b0170) at kernel/qapplication_x11.cpp:4516
#30 0x0000003ae6e44231 in QApplication::x11ProcessEvent (this=0x1627110, event=0x7fff7c7b0170) at kernel/qapplication_x11.cpp:3639
#31 0x0000003ae6e697c2 in x11EventSourceDispatch (s=0x1642b00, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x000000381b646e1c in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#33 0x000000381b647174 in ?? () from /usr/lib64/libglib-2.0.so.0
#34 0x000000381b647224 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#35 0x0000003f3a9a07f4 in QEventDispatcherGlib::processEvents (this=0x1595ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#36 0x0000003ae6e6944e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x0000003f3a971cdf in QEventLoop::processEvents (this=this@entry=0x7fff7c7b0550, flags=...) at kernel/qeventloop.cpp:149
#38 0x0000003f3a971f60 in QEventLoop::exec (this=0x7fff7c7b0550, flags=...) at kernel/qeventloop.cpp:204
#39 0x0000003f3a976ac8 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#40 0x0000003681e3d327 in kdemain (argc=1, argv=0x7fff7c7b0858) at /var/tmp/portage/kde-base/plasma-workspace-4.10.1/work/plasma-workspace-4.10.1/plasma/desktop/shell/main.cpp:126
#41 0x00000030220216f5 in __libc_start_main () from /lib64/libc.so.6
#42 0x0000000000400791 in _start ()

Possible duplicates by query: bug 313431, bug 308852, bug 305173.

Reported using DrKonqi