Bug 330009

Application: plasma-desktop (4.11.4)
KDE Platform Version: 4.11.4
Qt Version: 4.8.5
Operating System: Linux 3.12.6-200.fc19.x86_64 x86_64
Distribution: "Fedora release 19 (Schrödinger’s Cat)"

-- Information about the crash:
I was moving an application from one workspace to another by dragging the entry in the panel at the top of the screen where all of the open applications are listed.  It looks like the application was moved to a different workspace and Plasma reset itself.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f16596158c0 (LWP 1328))]

Thread 3 (Thread 0x7f1648975700 (LWP 1330)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000394c1860bb in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x394c483f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x000000394c1860f9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x000000392ee07c53 in start_thread (arg=0x7f1648975700) at pthread_create.c:308
#4  0x000000392e6f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f15b6986700 (LWP 1336)):
#0  0x000000392e6eb7fd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003930e480e4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f15a80029c0, timeout=-1, context=0x7f15a80009c0) at gmain.c:3995
#2  g_main_context_iterate (context=context@entry=0x7f15a80009c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3696
#3  0x0000003930e481ec in g_main_context_iteration (context=0x7f15a80009c0, may_block=1) at gmain.c:3762
#4  0x000000393a3a7166 in QEventDispatcherGlib::processEvents (this=0x7f15a80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#5  0x000000393a378ecf in QEventLoop::processEvents (this=this@entry=0x7f15b6985ce0, flags=...) at kernel/qeventloop.cpp:149
#6  0x000000393a3791c5 in QEventLoop::exec (this=this@entry=0x7f15b6985ce0, flags=...) at kernel/qeventloop.cpp:204
#7  0x000000393a27866f in QThread::exec (this=this@entry=0x31c60b0) at thread/qthread.cpp:536
#8  0x000000393a35a733 in QInotifyFileSystemWatcherEngine::run (this=0x31c60b0) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x000000393a27ad0f in QThreadPrivate::start (arg=0x31c60b0) at thread/qthread_unix.cpp:338
#10 0x000000392ee07c53 in start_thread (arg=0x7f15b6986700) at pthread_create.c:308
#11 0x000000392e6f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f16596158c0 (LWP 1328)):
[KCrash Handler]
#5  QUrl::operator= (this=this@entry=0x43ffca0, url=...) at io/qurl.cpp:6158
#6  0x0000003cac20797f in QDeclarativeError::operator= (this=0x7fffac445330, other=...) at qml/qdeclarativeerror.cpp:117
#7  0x0000003cac1b67c4 in QDeclarativeExpression::error (this=<optimized out>) at qml/qdeclarativeexpression.cpp:794
#8  0x0000003cac1f0d0b in QDeclarativeBoundSignal::qt_metacall (this=0x2c4e8a0, c=<optimized out>, id=<optimized out>, a=0x7fffac4454a0) at qml/qdeclarativeboundsignal.cpp:201
#9  0x000000393a38e172 in QMetaObject::activate (sender=0x1f8bc80, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffac4454a0) at kernel/qobject.cpp:3577
#10 0x00007f15c2e75667 in MouseEventListener::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /usr/lib64/kde4/imports/org/kde/qtextracomponents/libqtextracomponentsplugin.so
#11 0x000000394076b576 in QGraphicsItem::sceneEvent (this=0x1f8bc90, event=0x7fffac445950) at graphicsview/qgraphicsitem.cpp:6744
#12 0x0000003cac14e3b4 in QDeclarativeItem::sceneEvent (this=0x1f8bc80, event=0x7fffac445950) at graphicsitems/qdeclarativeitem.cpp:3047
#13 0x00000039407924ef in QGraphicsScenePrivate::sendMouseEvent (this=0x1d2f4e0, mouseEvent=0x7fffac445950) at graphicsview/qgraphicsscene.cpp:1295
#14 0x000000394079b0a6 in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fffac445950) at graphicsview/qgraphicsscene.cpp:4102
#15 0x00000039407a6f3c in QGraphicsScene::event (this=0x1cdf800, event=0x7fffac445950) at graphicsview/qgraphicsscene.cpp:3451
#16 0x00000039401c852c in QApplicationPrivate::notify_helper (this=0x1c8d2a0, receiver=0x1cdf800, e=0x7fffac445950) at kernel/qapplication.cpp:4562
#17 0x00000039401ceaf0 in QApplication::notify (this=0x1c7bf20, receiver=0x1cdf800, e=0x7fffac445950) at kernel/qapplication.cpp:4348
#18 0x0000003ca903feba in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#19 0x000000393a37a26d in QCoreApplication::notifyInternal (this=0x1c7bf20, receiver=0x1cdf800, event=event@entry=0x7fffac445950) at kernel/qcoreapplication.cpp:949
#20 0x00000039401c6ec6 in sendSpontaneousEvent (event=event@entry=0x7fffac445950, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:234
#21 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fffac445950) at kernel/qapplication.cpp:5560
#22 0x00000039407bc1fc in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x2f48dc0, event=event@entry=0x7fffac445fa0) at graphicsview/qgraphicsview.cpp:646
#23 0x00000039407bd11a in QGraphicsView::mouseMoveEvent (this=0x3f60870, event=0x7fffac445fa0) at graphicsview/qgraphicsview.cpp:3276
#24 0x0000003940217c95 in QWidget::event (this=this@entry=0x3f60870, event=event@entry=0x7fffac445fa0) at kernel/qwidget.cpp:8361
#25 0x00000039405b423e in QFrame::event (this=0x3f60870, e=0x7fffac445fa0) at widgets/qframe.cpp:557
#26 0x00000039407be769 in QGraphicsView::viewportEvent (this=0x3f60870, event=0x7fffac445fa0) at graphicsview/qgraphicsview.cpp:2866
#27 0x000000393a37a3d6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2f4a510, event=0x7fffac445fa0) at kernel/qcoreapplication.cpp:1059
#28 0x00000039401c850c in QApplicationPrivate::notify_helper (this=0x1c8d2a0, receiver=0x2f4a510, e=0x7fffac445fa0) at kernel/qapplication.cpp:4558
#29 0x00000039401cec2d in QApplication::notify (this=<optimized out>, receiver=0x2f4a510, e=0x7fffac445fa0) at kernel/qapplication.cpp:4105
#30 0x0000003ca903feba in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#31 0x000000393a37a26d in QCoreApplication::notifyInternal (this=0x1c7bf20, receiver=0x2f4a510, event=0x7fffac445fa0) at kernel/qcoreapplication.cpp:949
#32 0x00000039401ce3e3 in QApplicationPrivate::sendMouseEvent (receiver=0x2f4a510, event=0x7fffac445fa0, alienWidget=0x2f4a510, nativeWidget=0x3f60870, buttonDown=0x3940ca3278 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:231
#33 0x000000394023f97b in QETWidget::translateMouseEvent (this=0x3f60870, event=<optimized out>) at kernel/qapplication_x11.cpp:4538
#34 0x000000394023e3ec in QApplication::x11ProcessEvent (this=0x1c7bf20, event=event@entry=0x7fffac446310) at kernel/qapplication_x11.cpp:3661
#35 0x0000003940264ea4 in x11EventSourceDispatch (s=s@entry=0x1c8da00, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#36 0x0000003930e47df6 in g_main_dispatch (context=0x1c8d630) at gmain.c:3054
#37 g_main_context_dispatch (context=context@entry=0x1c8d630) at gmain.c:3630
#38 0x0000003930e48148 in g_main_context_iterate (context=context@entry=0x1c8d630, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#39 0x0000003930e481ec in g_main_context_iteration (context=0x1c8d630, may_block=1) at gmain.c:3762
#40 0x000000393a3a7145 in QEventDispatcherGlib::processEvents (this=0x1c12f50, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#41 0x0000003940265016 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#42 0x000000393a378ecf in QEventLoop::processEvents (this=this@entry=0x7fffac4466f0, flags=...) at kernel/qeventloop.cpp:149
#43 0x000000393a3791c5 in QEventLoop::exec (this=this@entry=0x7fffac4466f0, flags=...) at kernel/qeventloop.cpp:204
#44 0x000000393a37e45b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#45 0x0000003cad23c79c in kdemain () from /lib64/libkdeinit4_plasma-desktop.so
#46 0x000000392e621b45 in __libc_start_main (main=0x400940 <main>, argc=1, ubp_av=0x7fffac446948, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffac446938) at libc-start.c:274
#47 0x0000000000400971 in _start ()

Possible duplicates by query: bug 294590, bug 293177.

Reported using DrKonqi