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: I had Cheese loaded and it was working just fine. I clicked on the Filters button and it just froze up and crashed. By "froze up", I mean, even the video froze up as did the app itself.

-- 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 0x7feb012a3800 (LWP 2114))]

Thread 13 (Thread 0x7fead56bd700 (LWP 2134)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feaf9f3dffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007feaf9f3e039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007feaf47ea182 in start_thread (arg=0x7fead56bd700) at pthread_create.c:312
#4  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7fea4b891700 (LWP 2135)):
#0  0x00007feb00b7dfbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007feaf40d8fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007feaf40d90ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007feafd7537be in QEventDispatcherGlib::processEvents (this=0x7fea440008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007feafd7250af in QEventLoop::processEvents (this=this@entry=0x7fea4b890da0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007feafd7253a5 in QEventLoop::exec (this=this@entry=0x7fea4b890da0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007feafd621c5f in QThread::exec (this=this@entry=0x244fcd0) at thread/qthread.cpp:537
#7  0x00007feafd706823 in QInotifyFileSystemWatcherEngine::run (this=0x244fcd0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007feafd62432f in QThreadPrivate::start (arg=0x244fcd0) at thread/qthread_unix.cpp:349
#9  0x00007feaf47ea182 in start_thread (arg=0x7fea4b891700) at pthread_create.c:312
#10 0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7fea49031700 (LWP 2136)):
#0  0x00007feafd753b50 in testAndSetOrdered (newValue=0, expectedValue=1, this=0x2f5ce60) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:145
#1  testAndSetRelease (newValue=0, expectedValue=1, this=0x2f5ce60) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:272
#2  unlockInline (this=0x301cda8) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:171
#3  unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:121
#4  ~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:115
#5  canWaitLocked (this=0x301cd60) at ../../include/QtCore/private/../../../src/corelib/thread/qthread_p.h:229
#6  postEventSourcePrepare (s=0x7fea3c001370, timeout=0x7fea49030be4) at kernel/qeventdispatcher_glib.cpp:270
#7  0x00007feaf40d868d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007feaf40d8f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007feaf40d90ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007feafd7537be in QEventDispatcherGlib::processEvents (this=0x7fea3c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#11 0x00007feafd7250af in QEventLoop::processEvents (this=this@entry=0x7fea49030da0, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007feafd7253a5 in QEventLoop::exec (this=this@entry=0x7fea49030da0, flags=...) at kernel/qeventloop.cpp:204
#13 0x00007feafd621c5f in QThread::exec (this=this@entry=0x2f5cdf0) at thread/qthread.cpp:537
#14 0x00007feafd706823 in QInotifyFileSystemWatcherEngine::run (this=0x2f5cdf0) at io/qfilesystemwatcher_inotify.cpp:265
#15 0x00007feafd62432f in QThreadPrivate::start (arg=0x2f5cdf0) at thread/qthread_unix.cpp:349
#16 0x00007feaf47ea182 in start_thread (arg=0x7fea49031700) at pthread_create.c:312
#17 0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7fea3b19e700 (LWP 2145)):
#0  0x00007feb00b7c6bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007feaeefaae41 in ?? () from /usr/lib/nvidia-331/tls/libnvidia-tls.so.331.38
#2  0x00007feaf4119c20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007feaf40d8b14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007feaf40d8f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007feaf40d90ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007feafd7537be in QEventDispatcherGlib::processEvents (this=0x7fea340008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7  0x00007feafd7250af in QEventLoop::processEvents (this=this@entry=0x7fea3b19dda0, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007feafd7253a5 in QEventLoop::exec (this=this@entry=0x7fea3b19dda0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007feafd621c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#10 0x00007fea4204c027 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#11 0x00007feafd62432f in QThreadPrivate::start (arg=0x36fffc0) at thread/qthread_unix.cpp:349
#12 0x00007feaf47ea182 in start_thread (arg=0x7fea3b19e700) at pthread_create.c:312
#13 0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7fea33fff700 (LWP 7712)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x4035d90) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x4035d90, previous=0x4ebda30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x4035d90) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007feafd62432f in QThreadPrivate::start (arg=0x4035d90) at thread/qthread_unix.cpp:349
#7  0x00007feaf47ea182 in start_thread (arg=0x7fea33fff700) at pthread_create.c:312
#8  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7fea32594700 (LWP 7713)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x45ae160) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x45ae160, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b991c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x45ae160, previous=0x480c9a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x45ae160) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007feafd62432f in QThreadPrivate::start (arg=0x45ae160) at thread/qthread_unix.cpp:349
#8  0x00007feaf47ea182 in start_thread (arg=0x7fea32594700) at pthread_create.c:312
#9  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7fea31d93700 (LWP 7714)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x4b74ec0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x4b74ec0, previous=0x55e3270) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x4b74ec0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007feafd62432f in QThreadPrivate::start (arg=0x4b74ec0) at thread/qthread_unix.cpp:349
#7  0x00007feaf47ea182 in start_thread (arg=0x7fea31d93700) at pthread_create.c:312
#8  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fea31592700 (LWP 7715)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x48d3a70) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x48d3a70, previous=0x5848b30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x48d3a70) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007feafd62432f in QThreadPrivate::start (arg=0x48d3a70) at thread/qthread_unix.cpp:349
#7  0x00007feaf47ea182 in start_thread (arg=0x7fea31592700) at pthread_create.c:312
#8  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fea30d91700 (LWP 7716)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x28bd7d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x28bd7d0, previous=0x4d90140) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x28bd7d0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007feafd62432f in QThreadPrivate::start (arg=0x28bd7d0) at thread/qthread_unix.cpp:349
#7  0x00007feaf47ea182 in start_thread (arg=0x7fea30d91700) at pthread_create.c:312
#8  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fea175b8700 (LWP 9220)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x4f592b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x4f592b0, previous=0x69a6210) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x4f592b0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007feafd62432f in QThreadPrivate::start (arg=0x4f592b0) at thread/qthread_unix.cpp:349
#7  0x00007feaf47ea182 in start_thread (arg=0x7fea175b8700) at pthread_create.c:312
#8  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fea16db7700 (LWP 9221)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x44259a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x44259a0, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b991c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x44259a0, previous=0x4e03120) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x44259a0) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007feafd62432f in QThreadPrivate::start (arg=0x44259a0) at thread/qthread_unix.cpp:349
#8  0x00007feaf47ea182 in start_thread (arg=0x7fea16db7700) at pthread_create.c:312
#9  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fea165b6700 (LWP 9222)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feafd624816 in wait (time=18446744073709551615, this=0x312c500) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3138ed8, mutex=0x3005e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feaf91b6e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3138eb0, th=0x5945130) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007feaf91b9903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x5945130, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007feaf91b991c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3005c30, th=0x5945130, previous=0x72c5f20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007feaf91b861f in ThreadWeaver::Thread::run (this=0x5945130) at ../../../threadweaver/Weaver/Thread.cpp:98
#7  0x00007feafd62432f in QThreadPrivate::start (arg=0x5945130) at thread/qthread_unix.cpp:349
#8  0x00007feaf47ea182 in start_thread (arg=0x7fea165b6700) at pthread_create.c:312
#9  0x00007feb00b8b30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7feb012a3800 (LWP 2114)):
[KCrash Handler]
#6  ref (this=0x7feaff28d7d0 <QDeclarativeGuard<QObject>::~QDeclarativeGuard()>) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:121
#7  QUrl::operator= (this=this@entry=0x4f0fdb0, url=...) at io/qurl.cpp:6163
#8  0x00007feaff3daf7f in QDeclarativeError::operator= (this=0x7fff40e8b6f0, other=...) at qml/qdeclarativeerror.cpp:117
#9  0x00007feaff389e34 in QDeclarativeExpression::error (this=<optimized out>) at qml/qdeclarativeexpression.cpp:794
#10 0x00007feaff3c431b in QDeclarativeBoundSignal::qt_metacall (this=0x6852c00, c=<optimized out>, id=<optimized out>, a=0x7fff40e8b8b0) at qml/qdeclarativeboundsignal.cpp:201
#11 0x00007feafd73aa78 in QMetaObject::activate (sender=sender@entry=0x53fae50, m=m@entry=0x7fea4fbeeb20 <MouseEventListener::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff40e8b8b0) at kernel/qobject.cpp:3569
#12 0x00007fea4f9e6790 in pressed (_t1=0x7fff40e8b8c0, this=0x53fae50) at ./mouseeventlistener.moc:367
#13 MouseEventListener::sceneEventFilter (this=0x53fae50, item=0x4f72160, event=0x7fff40e8bde0) at ../../../../plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp:181
#14 0x00007feafd08ba85 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x263a5e0, item=item@entry=0x4f72160, event=event@entry=0x7fff40e8bde0) at graphicsview/qgraphicsscene.cpp:1159
#15 0x00007feafd0900ae in QGraphicsScenePrivate::sendEvent (this=0x263a5e0, item=0x4f72160, event=0x7fff40e8bde0) at graphicsview/qgraphicsscene.cpp:1211
#16 0x00007feafd0905af in QGraphicsScenePrivate::sendMouseEvent (this=0x263a5e0, mouseEvent=0x7fff40e8bde0) at graphicsview/qgraphicsscene.cpp:1295
#17 0x00007feafd09be26 in QGraphicsScenePrivate::mousePressEventHandler (this=this@entry=0x263a5e0, mouseEvent=mouseEvent@entry=0x7fff40e8bde0) at graphicsview/qgraphicsscene.cpp:1422
#18 0x00007feafd09c2b9 in QGraphicsScene::mousePressEvent (this=<optimized out>, mouseEvent=0x7fff40e8bde0) at graphicsview/qgraphicsscene.cpp:4074
#19 0x00007feafd0a5100 in QGraphicsScene::event (this=0x25ffec0, event=0x7fff40e8bde0) at graphicsview/qgraphicsscene.cpp:3455
#20 0x00007feafcabfe2c in QApplicationPrivate::notify_helper (this=this@entry=0x243d020, receiver=receiver@entry=0x25ffec0, e=e@entry=0x7fff40e8bde0) at kernel/qapplication.cpp:4567
#21 0x00007feafcac64a0 in QApplication::notify (this=this@entry=0x2423a30, receiver=receiver@entry=0x25ffec0, e=e@entry=0x7fff40e8bde0) at kernel/qapplication.cpp:4353
#22 0x00007feafe3ebbaa in KApplication::notify (this=0x2423a30, receiver=0x25ffec0, event=0x7fff40e8bde0) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00007feafd7264dd in QCoreApplication::notifyInternal (this=0x2423a30, receiver=0x25ffec0, event=event@entry=0x7fff40e8bde0) at kernel/qcoreapplication.cpp:953
#24 0x00007feafcabe556 in sendSpontaneousEvent (event=event@entry=0x7fff40e8bde0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff40e8bde0) at kernel/qapplication.cpp:5565
#26 0x00007feafd0bba5f in QGraphicsView::mousePressEvent (this=0x3d64730, event=0x7fff40e8c350) at graphicsview/qgraphicsview.cpp:3164
#27 0x00007feafcb0f37b in QWidget::event (this=this@entry=0x3d64730, event=event@entry=0x7fff40e8c350) at kernel/qwidget.cpp:8372
#28 0x00007feafceb0fce in QFrame::event (this=0x3d64730, e=0x7fff40e8c350) at widgets/qframe.cpp:557
#29 0x00007feafd0bc7b9 in QGraphicsView::viewportEvent (this=0x3d64730, event=0x7fff40e8c350) at graphicsview/qgraphicsview.cpp:2866
#30 0x00007feafd726646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x243d020, receiver=receiver@entry=0x3d66840, event=event@entry=0x7fff40e8c350) at kernel/qcoreapplication.cpp:1063
#31 0x00007feafcabfe0c in QApplicationPrivate::notify_helper (this=this@entry=0x243d020, receiver=receiver@entry=0x3d66840, e=e@entry=0x7fff40e8c350) at kernel/qapplication.cpp:4563
#32 0x00007feafcac65dd in QApplication::notify (this=this@entry=0x2423a30, receiver=receiver@entry=0x3d66840, e=e@entry=0x7fff40e8c350) at kernel/qapplication.cpp:4110
#33 0x00007feafe3ebbaa in KApplication::notify (this=0x2423a30, receiver=0x3d66840, event=0x7fff40e8c350) at ../../kdeui/kernel/kapplication.cpp:311
#34 0x00007feafd7264dd in QCoreApplication::notifyInternal (this=0x2423a30, receiver=receiver@entry=0x3d66840, event=event@entry=0x7fff40e8c350) at kernel/qcoreapplication.cpp:953
#35 0x00007feafcac5d93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#36 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x3d66840, event=event@entry=0x7fff40e8c350, alienWidget=alienWidget@entry=0x3d66840, nativeWidget=nativeWidget@entry=0x3d64730, buttonDown=buttonDown@entry=0x7feafd5a5318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#37 0x00007feafcb3a9cb in QETWidget::translateMouseEvent (this=this@entry=0x3d64730, event=event@entry=0x7fff40e8c6d0) at kernel/qapplication_x11.cpp:4634
#38 0x00007feafcb3a269 in QApplication::x11ProcessEvent (this=0x2423a30, event=event@entry=0x7fff40e8c6d0) at kernel/qapplication_x11.cpp:3627
#39 0x00007feafcb61b02 in x11EventSourceDispatch (s=0x243d670, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#40 0x00007feaf40d8e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007feaf40d9048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007feaf40d90ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007feafd7537a1 in QEventDispatcherGlib::processEvents (this=0x2363af0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#44 0x00007feafcb61bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x00007feafd7250af in QEventLoop::processEvents (this=this@entry=0x7fff40e8caa0, flags=...) at kernel/qeventloop.cpp:149
#46 0x00007feafd7253a5 in QEventLoop::exec (this=this@entry=0x7fff40e8caa0, flags=...) at kernel/qeventloop.cpp:204
#47 0x00007feafd72ab79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#48 0x00007feafcabe37c in QApplication::exec () at kernel/qapplication.cpp:3828
#49 0x00007feb00e9266c in kdemain (argc=1, argv=0x7fff40e8ccf8) at ../../../../plasma/desktop/shell/main.cpp:126
#50 0x00007feb00ab1ec5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, argv=0x7fff40e8ccf8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff40e8cce8) at libc-start.c:287
#51 0x000000000040070e in _start ()

Possible duplicates by query: bug 330178, bug 330009.

Reported using DrKonqi