Application: plasma-desktop (4.11.8)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Ubuntu 14.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Trying to add the pager widget to the panel
This only happens sometimes

The crash can be reproduced sometimes.

-- 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 0x7fdbc89fa7c0 (LWP 8267))]

Thread 13 (Thread 0x7fdb9e037700 (LWP 8268)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc16a2ffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fdbc16a3039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fdbbbf4f182 in start_thread (arg=0x7fdb9e037700) at pthread_create.c:312
#4  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7fdb17a29700 (LWP 8269)):
#0  0x00007fdbc82e2fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fdbbb83dfe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdbbb83e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdbc4eb87be in QEventDispatcherGlib::processEvents (this=0x7fdb100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007fdbc4e8a0af in QEventLoop::processEvents (this=this@entry=0x7fdb17a28de0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fdbc4e8a3a5 in QEventLoop::exec (this=this@entry=0x7fdb17a28de0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fdbc4d86c5f in QThread::exec (this=this@entry=0x1d3d6e0) at thread/qthread.cpp:537
#7  0x00007fdbc4e6b823 in QInotifyFileSystemWatcherEngine::run (this=0x1d3d6e0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x1d3d6e0) at thread/qthread_unix.cpp:349
#9  0x00007fdbbbf4f182 in start_thread (arg=0x7fdb17a29700) at pthread_create.c:312
#10 0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7fdb151c9700 (LWP 8270)):
#0  __GI___pthread_getspecific (key=3) at pthread_getspecific.c:57
#1  0x00007fdbbb8633b0 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdbbb83d09c in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdbbb83dea5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdbbb83e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdbc4eb87be in QEventDispatcherGlib::processEvents (this=0x7fdb080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007fdbc4e8a0af in QEventLoop::processEvents (this=this@entry=0x7fdb151c8de0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fdbc4e8a3a5 in QEventLoop::exec (this=this@entry=0x7fdb151c8de0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fdbc4d86c5f in QThread::exec (this=this@entry=0x1e12480) at thread/qthread.cpp:537
#9  0x00007fdbc4e6b823 in QInotifyFileSystemWatcherEngine::run (this=0x1e12480) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x1e12480) at thread/qthread_unix.cpp:349
#11 0x00007fdbbbf4f182 in start_thread (arg=0x7fdb151c9700) at pthread_create.c:312
#12 0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7fdb07bef700 (LWP 8277)):
#0  0x00007fdbc82e2fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fdbbb83dfe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdbbb83e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdbc4eb87be in QEventDispatcherGlib::processEvents (this=0x7fdb000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007fdbc4e8a0af in QEventLoop::processEvents (this=this@entry=0x7fdb07beede0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fdbc4e8a3a5 in QEventLoop::exec (this=this@entry=0x7fdb07beede0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fdbc4d86c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#7  0x00007fdb0fdd4027 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#8  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x281cc80) at thread/qthread_unix.cpp:349
#9  0x00007fdbbbf4f182 in start_thread (arg=0x7fdb07bef700) at pthread_create.c:312
#10 0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7fdb059ce700 (LWP 8566)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x3eac7a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3eac7a0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091e91c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3eac7a0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007fdbc091e91c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3eac7a0, previous=0x39ea700) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x3eac7a0) at ../../../threadweaver/Weaver/Thread.cpp:98
#8  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x3eac7a0) at thread/qthread_unix.cpp:349
#9  0x00007fdbbbf4f182 in start_thread (arg=0x7fdb059ce700) at pthread_create.c:312
#10 0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7fdafdf91700 (LWP 8567)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x3a4d490) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a4d490, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091e91c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a4d490, previous=0x30f9c20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x3a4d490) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x3a4d490) at thread/qthread_unix.cpp:349
#8  0x00007fdbbbf4f182 in start_thread (arg=0x7fdafdf91700) at pthread_create.c:312
#9  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7fdafd790700 (LWP 8568)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x3a52500) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a52500, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091e91c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a52500, previous=0x40859d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x3a52500) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x3a52500) at thread/qthread_unix.cpp:349
#8  0x00007fdbbbf4f182 in start_thread (arg=0x7fdafd790700) at pthread_create.c:312
#9  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fdafcf8f700 (LWP 8569)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x3dd7300) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3dd7300, previous=0x39bf220) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x3dd7300) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x3dd7300) at thread/qthread_unix.cpp:349
#7  0x00007fdbbbf4f182 in start_thread (arg=0x7fdafcf8f700) at pthread_create.c:312
#8  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fdaf3fff700 (LWP 8570)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x35d61c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x35d61c0, previous=0x3d3e760) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x35d61c0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x35d61c0) at thread/qthread_unix.cpp:349
#7  0x00007fdbbbf4f182 in start_thread (arg=0x7fdaf3fff700) at pthread_create.c:312
#8  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fdaf2fc2700 (LWP 8787)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x3a73390) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a73390, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091e91c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a73390, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x3a73390) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x3a73390) at thread/qthread_unix.cpp:349
#8  0x00007fdbbbf4f182 in start_thread (arg=0x7fdaf2fc2700) at pthread_create.c:312
#9  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fdaf27c1700 (LWP 8788)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x3a65580) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a65580, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091e91c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x3a65580, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x3a65580) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x3a65580) at thread/qthread_unix.cpp:349
#8  0x00007fdbbbf4f182 in start_thread (arg=0x7fdaf27c1700) at pthread_create.c:312
#9  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fdaf1fc0700 (LWP 8789)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdbc4d89816 in wait (time=18446744073709551615, this=0x1db9850) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ea73d8, mutex=0x1dc9500, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fdbc091be6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ea73b0, th=0x1d70350) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007fdbc091e903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x1d70350, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007fdbc091e91c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d9a2d0, th=0x1d70350, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007fdbc091d61f in ThreadWeaver::Thread::run (this=0x1d70350) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007fdbc4d8932f in QThreadPrivate::start (arg=0x1d70350) at thread/qthread_unix.cpp:349
#8  0x00007fdbbbf4f182 in start_thread (arg=0x7fdaf1fc0700) at pthread_create.c:312
#9  0x00007fdbc82f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fdbc89fa7c0 (LWP 8267)):
[KCrash Handler]
#6  0x0000000000000031 in ?? ()
#7  0x00007fdb1c5ba5c0 in DeclarativeMimeData::DeclarativeMimeData (this=0x7fff187b6220, copy=0x55b28f0) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeMimeData.cpp:50
#8  0x00007fdb1c5b9db1 in DeclarativeDragDropEvent::DeclarativeDragDropEvent (this=0x7fff187b6200, e=0x7fff187b6630, parent=0x1792290) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragDropEvent.cpp:33
#9  0x00007fdb1c5b9ea4 in DeclarativeDropArea::dragLeaveEvent (this=0x1792290, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDropArea.cpp:44
#10 0x00007fdbc47ce702 in QGraphicsItem::sceneEvent (this=this@entry=0x17922a0, event=event@entry=0x7fff187b6630) at graphicsview/qgraphicsitem.cpp:6734
#11 0x00007fdbc6a867c4 in QDeclarativeItem::sceneEvent (this=0x1792290, event=0x7fff187b6630) at graphicsitems/qdeclarativeitem.cpp:3081
#12 0x00007fdbc47f51c7 in QGraphicsScenePrivate::sendDragDropEvent (this=this@entry=0x13ff5e0, item=0x17922a0, dragDropEvent=0x7fff187b6630) at graphicsview/qgraphicsscene.cpp:1250
#13 0x00007fdbc47f51ff in QGraphicsScene::dragLeaveEvent (this=<optimized out>, event=<optimized out>) at graphicsview/qgraphicsscene.cpp:3738
#14 0x00007fdbc480a1f0 in QGraphicsScene::event (this=0x13ffcf0, event=0x7fff187b6630) at graphicsview/qgraphicsscene.cpp:3406
#15 0x00007fdbc4224e2c in QApplicationPrivate::notify_helper (this=this@entry=0x128c9b0, receiver=receiver@entry=0x13ffcf0, e=e@entry=0x7fff187b6630) at kernel/qapplication.cpp:4567
#16 0x00007fdbc422b4a0 in QApplication::notify (this=this@entry=0x12775b0, receiver=receiver@entry=0x13ffcf0, e=e@entry=0x7fff187b6630) at kernel/qapplication.cpp:4353
#17 0x00007fdbc5b50baa in KApplication::notify (this=0x12775b0, receiver=0x13ffcf0, event=0x7fff187b6630) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007fdbc4e8b4dd in QCoreApplication::notifyInternal (this=0x12775b0, receiver=0x13ffcf0, event=event@entry=0x7fff187b6630) at kernel/qcoreapplication.cpp:953
#19 0x00007fdbc4822088 in sendEvent (event=0x7fff187b6630, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QGraphicsView::dragLeaveEvent (this=<optimized out>, event=0x7fff187b6a40) at graphicsview/qgraphicsview.cpp:2990
#21 0x00007fdbc4274273 in QWidget::event (this=this@entry=0x254ded0, event=event@entry=0x7fff187b6a40) at kernel/qwidget.cpp:8589
#22 0x00007fdbc4615fce in QFrame::event (this=0x254ded0, e=0x7fff187b6a40) at widgets/qframe.cpp:557
#23 0x00007fdbc48217b9 in QGraphicsView::viewportEvent (this=0x254ded0, event=0x7fff187b6a40) at graphicsview/qgraphicsview.cpp:2866
#24 0x00007fdbc4e8b646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x128c9b0, receiver=receiver@entry=0x1f267a0, event=event@entry=0x7fff187b6a40) at kernel/qcoreapplication.cpp:1063
#25 0x00007fdbc4224e0c in QApplicationPrivate::notify_helper (this=this@entry=0x128c9b0, receiver=receiver@entry=0x1f267a0, e=e@entry=0x7fff187b6a40) at kernel/qapplication.cpp:4563
#26 0x00007fdbc422c326 in QApplication::notify (this=this@entry=0x12775b0, receiver=receiver@entry=0x1f267a0, e=e@entry=0x7fff187b6a40) at kernel/qapplication.cpp:4353
#27 0x00007fdbc5b50baa in KApplication::notify (this=0x12775b0, receiver=0x1f267a0, event=0x7fff187b6a40) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007fdbc4e8b4dd in QCoreApplication::notifyInternal (this=0x12775b0, receiver=0x1f267a0, event=0x7fff187b6a40) at kernel/qcoreapplication.cpp:953
#29 0x00007fdbc42ac6ee in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#30 QX11Data::xdndHandleLeave (this=0x7fff187b6170, w=0x55b28f0, xe=0x7fff187b6a90) at kernel/qdnd_x11.cpp:1068
#31 0x00007fdbc42ac830 in qt_xdnd_send_leave () at kernel/qdnd_x11.cpp:1107
#32 0x00007fdbc42acc3a in qt_xdnd_send_leave () at kernel/qdnd_x11.cpp:1410
#33 QDragManager::cancel (this=0x617ac40, deleteSource=deleteSource@entry=false) at kernel/qdnd_x11.cpp:1411
#34 0x00007fdbc4235bda in QDrag::~QDrag (this=0x6409610, __in_chrg=<optimized out>) at kernel/qdrag.cpp:132
#35 0x00007fdbc4235bf9 in QDrag::~QDrag (this=0x6409610, __in_chrg=<optimized out>) at kernel/qdrag.cpp:133
#36 0x00007fdbc4ea2168 in QObjectPrivate::deleteChildren (this=this@entry=0x4f3d2c0) at kernel/qobject.cpp:1907
#37 0x00007fdbc4270d37 in QWidget::~QWidget (this=0x4e437f0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1679
#38 0x00007fdbc4271049 in QWidget::~QWidget (this=0x4e437f0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1703
#39 0x00007fdbc4ea2168 in QObjectPrivate::deleteChildren (this=this@entry=0x59144d0) at kernel/qobject.cpp:1907
#40 0x00007fdbc4270d37 in QWidget::~QWidget (this=0x54745b0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1679
#41 0x00007fdbc481b935 in QGraphicsView::~QGraphicsView (this=0x54745b0, __in_chrg=<optimized out>) at graphicsview/qgraphicsview.cpp:1158
#42 0x00007fdbc481b969 in QGraphicsView::~QGraphicsView (this=0x54745b0, __in_chrg=<optimized out>) at graphicsview/qgraphicsview.cpp:1164
#43 0x00007fdbc85e8a04 in ControllerWindow::~ControllerWindow (this=0x3df12b0, __in_chrg=<optimized out>) at ../../../../plasma/desktop/shell/controllerwindow.cpp:107
#44 0x00007fdbc85e8a59 in ControllerWindow::~ControllerWindow (this=0x3df12b0, __in_chrg=<optimized out>) at ../../../../plasma/desktop/shell/controllerwindow.cpp:108
#45 0x00007fdbc4ea3c58 in QObject::event (this=this@entry=0x3df12b0, e=e@entry=0x3d26a50) at kernel/qobject.cpp:1175
#46 0x00007fdbc427455b in QWidget::event (this=0x3df12b0, event=0x3d26a50) at kernel/qwidget.cpp:8846
#47 0x00007fdbc4224e2c in QApplicationPrivate::notify_helper (this=this@entry=0x128c9b0, receiver=receiver@entry=0x3df12b0, e=e@entry=0x3d26a50) at kernel/qapplication.cpp:4567
#48 0x00007fdbc422b4a0 in QApplication::notify (this=this@entry=0x12775b0, receiver=receiver@entry=0x3df12b0, e=e@entry=0x3d26a50) at kernel/qapplication.cpp:4353
#49 0x00007fdbc5b50baa in KApplication::notify (this=0x12775b0, receiver=0x3df12b0, event=0x3d26a50) at ../../kdeui/kernel/kapplication.cpp:311
#50 0x00007fdbc4e8b4dd in QCoreApplication::notifyInternal (this=0x12775b0, receiver=receiver@entry=0x3df12b0, event=event@entry=0x3d26a50) at kernel/qcoreapplication.cpp:953
#51 0x00007fdbc4e8eb3d in sendEvent (event=0x3d26a50, receiver=0x3df12b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#52 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x12081f0) at kernel/qcoreapplication.cpp:1577
#53 0x00007fdbc4e8efe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#54 0x00007fdbc4eb8f83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#55 postEventSourceDispatch (s=0x128cd60) at kernel/qeventdispatcher_glib.cpp:287
#56 0x00007fdbbb83de04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007fdbbb83e048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007fdbbb83e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007fdbc4eb87a1 in QEventDispatcherGlib::processEvents (this=0x1209af0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#60 0x00007fdbc42c6bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#61 0x00007fdbc4e8a0af in QEventLoop::processEvents (this=this@entry=0x3dd7020, flags=...) at kernel/qeventloop.cpp:149
#62 0x00007fdbc4e8a3a5 in QEventLoop::exec (this=this@entry=0x3dd7020, flags=...) at kernel/qeventloop.cpp:204
#63 0x00007fdbc42af09d in QDragManager::drag (this=0x617ac40, o=o@entry=0x6409610) at kernel/qdnd_x11.cpp:2032
#64 0x00007fdbc4235e3a in QDrag::exec (this=this@entry=0x6409610, supportedActions=..., defaultDropAction=Qt::MoveAction) at kernel/qdrag.cpp:284
#65 0x00007fdb1c5b9c68 in DeclarativeDragArea::mouseMoveEvent (this=0x3430eb0, event=<optimized out>) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:233
#66 0x00007fdb1c5b9d21 in DeclarativeDragArea::sceneEventFilter (this=0x3430eb0, item=0x63c2530, event=0x7fff187b7a30) at ../../../../plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#67 0x00007fdbc47f0a85 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x13ff5e0, item=item@entry=0x63c2530, event=event@entry=0x7fff187b7a30) at graphicsview/qgraphicsscene.cpp:1159
#68 0x00007fdbc47f50ae in QGraphicsScenePrivate::sendEvent (this=0x13ff5e0, item=0x63c2530, event=0x7fff187b7a30) at graphicsview/qgraphicsscene.cpp:1211
#69 0x00007fdbc47f55af in QGraphicsScenePrivate::sendMouseEvent (this=0x13ff5e0, mouseEvent=0x7fff187b7a30) at graphicsview/qgraphicsscene.cpp:1295
#70 0x00007fdbc47fe176 in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff187b7a30) at graphicsview/qgraphicsscene.cpp:4102
#71 0x00007fdbc480a05c in QGraphicsScene::event (this=0x13ffcf0, event=0x7fff187b7a30) at graphicsview/qgraphicsscene.cpp:3451
#72 0x00007fdbc4224e2c in QApplicationPrivate::notify_helper (this=this@entry=0x128c9b0, receiver=receiver@entry=0x13ffcf0, e=e@entry=0x7fff187b7a30) at kernel/qapplication.cpp:4567
#73 0x00007fdbc422b4a0 in QApplication::notify (this=this@entry=0x12775b0, receiver=receiver@entry=0x13ffcf0, e=e@entry=0x7fff187b7a30) at kernel/qapplication.cpp:4353
#74 0x00007fdbc5b50baa in KApplication::notify (this=0x12775b0, receiver=0x13ffcf0, event=0x7fff187b7a30) at ../../kdeui/kernel/kapplication.cpp:311
#75 0x00007fdbc4e8b4dd in QCoreApplication::notifyInternal (this=0x12775b0, receiver=0x13ffcf0, event=event@entry=0x7fff187b7a30) at kernel/qcoreapplication.cpp:953
#76 0x00007fdbc4223556 in sendSpontaneousEvent (event=event@entry=0x7fff187b7a30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#77 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff187b7a30) at kernel/qapplication.cpp:5565
#78 0x00007fdbc481f25c in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x59144d0, event=event@entry=0x7fff187b8080) at graphicsview/qgraphicsview.cpp:646
#79 0x00007fdbc482016a in QGraphicsView::mouseMoveEvent (this=0x54745b0, event=0x7fff187b8080) at graphicsview/qgraphicsview.cpp:3276
#80 0x00007fdbc4274635 in QWidget::event (this=this@entry=0x54745b0, event=event@entry=0x7fff187b8080) at kernel/qwidget.cpp:8361
#81 0x00007fdbc4615fce in QFrame::event (this=0x54745b0, e=0x7fff187b8080) at widgets/qframe.cpp:557
#82 0x00007fdbc48217b9 in QGraphicsView::viewportEvent (this=0x54745b0, event=0x7fff187b8080) at graphicsview/qgraphicsview.cpp:2866
#83 0x00007fdbc4e8b646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x128c9b0, receiver=receiver@entry=0x4e437f0, event=event@entry=0x7fff187b8080) at kernel/qcoreapplication.cpp:1063
#84 0x00007fdbc4224e0c in QApplicationPrivate::notify_helper (this=this@entry=0x128c9b0, receiver=receiver@entry=0x4e437f0, e=e@entry=0x7fff187b8080) at kernel/qapplication.cpp:4563
#85 0x00007fdbc422b5dd in QApplication::notify (this=this@entry=0x12775b0, receiver=receiver@entry=0x4e437f0, e=e@entry=0x7fff187b8080) at kernel/qapplication.cpp:4110
#86 0x00007fdbc5b50baa in KApplication::notify (this=0x12775b0, receiver=0x4e437f0, event=0x7fff187b8080) at ../../kdeui/kernel/kapplication.cpp:311
#87 0x00007fdbc4e8b4dd in QCoreApplication::notifyInternal (this=0x12775b0, receiver=receiver@entry=0x4e437f0, event=event@entry=0x7fff187b8080) at kernel/qcoreapplication.cpp:953
#88 0x00007fdbc422ad93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#89 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x4e437f0, event=event@entry=0x7fff187b8080, alienWidget=alienWidget@entry=0x4e437f0, nativeWidget=nativeWidget@entry=0x3df12b0, buttonDown=buttonDown@entry=0x7fdbc4d0a318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#90 0x00007fdbc429f9cb in QETWidget::translateMouseEvent (this=this@entry=0x3df12b0, event=event@entry=0x7fff187b8400) at kernel/qapplication_x11.cpp:4634
#91 0x00007fdbc429f269 in QApplication::x11ProcessEvent (this=0x12775b0, event=event@entry=0x7fff187b8400) at kernel/qapplication_x11.cpp:3627
#92 0x00007fdbc42c6b02 in x11EventSourceDispatch (s=0x1291320, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#93 0x00007fdbbb83de04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#94 0x00007fdbbb83e048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#95 0x00007fdbbb83e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#96 0x00007fdbc4eb87a1 in QEventDispatcherGlib::processEvents (this=0x1209af0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#97 0x00007fdbc42c6bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#98 0x00007fdbc4e8a0af in QEventLoop::processEvents (this=this@entry=0x7fff187b87d0, flags=...) at kernel/qeventloop.cpp:149
#99 0x00007fdbc4e8a3a5 in QEventLoop::exec (this=this@entry=0x7fff187b87d0, flags=...) at kernel/qeventloop.cpp:204
#100 0x00007fdbc4e8fb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#101 0x00007fdbc422337c in QApplication::exec () at kernel/qapplication.cpp:3828
#102 0x00007fdbc85f766c in kdemain (argc=1, argv=0x7fff187b8a28) at ../../../../plasma/desktop/shell/main.cpp:126
#103 0x00007fdbc8216ec5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, argv=0x7fff187b8a28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff187b8a18) at libc-start.c:287
#104 0x000000000040070e in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 333984.

Possible duplicates by query: bug 333984, bug 333961, bug 333621, bug 331928, bug 331642.

Reported using DrKonqi