Bug 315265

Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.00
Qt Version: 4.8.3
Operating System: Linux 3.7.7 x86_64
Distribution: Ubuntu 12.10

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

After change applet configuration (Customizable Weather Plasmoid) and confirm changes, plasma crash. It happend only ones. I can't reproduce this.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Shell plochy Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff36fdbe780 (LWP 5552))]

Thread 11 (Thread 0x7ff35cf87700 (LWP 5555)):
#0  0x00007ff3831de303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ff376ddcd84 in g_main_context_poll (n_fds=1, fds=0x7ff358002bb0, timeout=-1, context=0x7ff3580009a0, priority=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3584
#2  g_main_context_iterate (context=context@entry=0x7ff3580009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3285
#3  0x00007ff376ddcea4 in g_main_context_iteration (context=0x7ff3580009a0, may_block=1) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3351
#4  0x00007ff37fdd6c16 in QEventDispatcherGlib::processEvents (this=0x7ff3580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007ff37fda72bf in QEventLoop::processEvents (this=this@entry=0x7ff35cf86dd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007ff37fda7548 in QEventLoop::exec (this=0x7ff35cf86dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007ff37fca8b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007ff37fd879af in QInotifyFileSystemWatcherEngine::run (this=0x25edc40) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x25edc40) at thread/qthread_unix.cpp:338
#10 0x00007ff3774dbe9a in start_thread (arg=0x7ff35cf87700) at pthread_create.c:308
#11 0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7ff357fff700 (LWP 5556)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37ce2dcd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007ff37ce2dd09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007ff3774dbe9a in start_thread (arg=0x7ff357fff700) at pthread_create.c:308
#4  0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7ff34ad70700 (LWP 15449)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x4d31ef0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4d31ef0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff34ad6fe00, parent=0x3067fd0, th=th@entry=0x4d31ef0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x4d31ef0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x4d31ef0) at thread/qthread_unix.cpp:338
#8  0x00007ff3774dbe9a in start_thread (arg=0x7ff34ad70700) at pthread_create.c:308
#9  0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7ff34c119700 (LWP 15450)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x4af58f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4af58f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff34c118e00, parent=0x3067fd0, th=th@entry=0x4af58f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x4af58f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x4af58f0) at thread/qthread_unix.cpp:338
#8  0x00007ff3774dbe9a in start_thread (arg=0x7ff34c119700) at pthread_create.c:308
#9  0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7ff34185c700 (LWP 15451)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x4e508a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4e508a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff34185be00, parent=0x3067fd0, th=th@entry=0x4e508a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x4e508a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x4e508a0) at thread/qthread_unix.cpp:338
#8  0x00007ff3774dbe9a in start_thread (arg=0x7ff34185c700) at pthread_create.c:308
#9  0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7ff337fff700 (LWP 15452)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x4e9e680) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4e9e680) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b4944 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4e9e680) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff337ffee00, parent=0x3067fd0, th=th@entry=0x4e9e680) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x4e9e680) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x4e9e680) at thread/qthread_unix.cpp:338
#9  0x00007ff3774dbe9a in start_thread (arg=0x7ff337fff700) at pthread_create.c:308
#10 0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7ff3377fe700 (LWP 15453)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x320d5f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x320d5f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff3377fde00, parent=0x3067fd0, th=th@entry=0x320d5f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x320d5f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x320d5f0) at thread/qthread_unix.cpp:338
#8  0x00007ff3774dbe9a in start_thread (arg=0x7ff3377fe700) at pthread_create.c:308
#9  0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7ff34105b700 (LWP 15454)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x4c28ad0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4c28ad0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b4944 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4c28ad0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff34105ae00, parent=0x3067fd0, th=th@entry=0x4c28ad0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x4c28ad0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x4c28ad0) at thread/qthread_unix.cpp:338
#9  0x00007ff3774dbe9a in start_thread (arg=0x7ff34105b700) at pthread_create.c:308
#10 0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ff34085a700 (LWP 15455)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x4cc6860) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4cc6860) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b4944 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x4cc6860) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff340859e00, parent=0x3067fd0, th=th@entry=0x4cc6860) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x4cc6860) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x4cc6860) at thread/qthread_unix.cpp:338
#9  0x00007ff3774dbe9a in start_thread (arg=0x7ff34085a700) at pthread_create.c:308
#10 0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ff336ffd700 (LWP 15456)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff37fcac04b in wait (time=18446744073709551615, this=0x2f2d160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2f61b90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff37c0b20e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3067fd0, th=0x42fb0f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ff37c0b492b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x42fb0f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ff37c0b4944 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2f544f0, th=0x42fb0f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007ff37c0b379f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7ff336ffce00, parent=0x3067fd0, th=th@entry=0x42fb0f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007ff37c0b382b in ThreadWeaver::Thread::run (this=0x42fb0f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007ff37fcabaec in QThreadPrivate::start (arg=0x42fb0f0) at thread/qthread_unix.cpp:338
#9  0x00007ff3774dbe9a in start_thread (arg=0x7ff336ffd700) at pthread_create.c:308
#10 0x00007ff3831e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff36fdbe780 (LWP 5552)):
[KCrash Handler]
#6  0x00007ff38199cdd4 in QDeclarativeItem::~QDeclarativeItem (this=0x5290910, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007ff35c0dab01 in ~QDeclarativeElement (this=0x5290910, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x5290910, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007ff37fdbd468 in QObject::event (this=0x5290910, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007ff37f14fe9c in QApplicationPrivate::notify_helper (this=this@entry=0x260cb80, receiver=receiver@entry=0x5290910, e=e@entry=0x4d832f0) at kernel/qapplication.cpp:4562
#11 0x00007ff37f15430a in QApplication::notify (this=0x2609280, receiver=0x5290910, e=0x4d832f0) at kernel/qapplication.cpp:4423
#12 0x00007ff380a61636 in KApplication::notify (this=0x2609280, receiver=0x5290910, event=0x4d832f0) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007ff37fda856e in QCoreApplication::notifyInternal (this=0x2609280, receiver=receiver@entry=0x5290910, event=event@entry=0x4d832f0) at kernel/qcoreapplication.cpp:915
#14 0x00007ff37fdac3f1 in sendEvent (event=0x4d832f0, receiver=0x5290910) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x24bf1f0) at kernel/qcoreapplication.cpp:1539
#16 0x00007ff37fdd6a63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#17 postEventSourceDispatch (s=s@entry=0x260df00) at kernel/qeventdispatcher_glib.cpp:279
#18 0x00007ff376ddcab5 in g_main_dispatch (context=0x260dd20) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:2715
#19 g_main_context_dispatch (context=context@entry=0x260dd20) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3219
#20 0x00007ff376ddcde8 in g_main_context_iterate (context=context@entry=0x260dd20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3290
#21 0x00007ff376ddcea4 in g_main_context_iteration (context=0x260dd20, may_block=1) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3351
#22 0x00007ff37fdd6bf6 in QEventDispatcherGlib::processEvents (this=0x24c0ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007ff37f1f4c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007ff37fda72bf in QEventLoop::processEvents (this=this@entry=0x7fff9053bb00, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007ff37fda7548 in QEventLoop::exec (this=0x7fff9053bb00, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007ff37f58c395 in QMenu::exec (this=0x7fff9053bbc0, p=..., action=0x0) at widgets/qmenu.cpp:2113
#27 0x00007ff382d00fef in contextMenuEvent (event=0x7fff9053c270, this=<optimized out>) at ../../plasma/containment.cpp:668
#28 Plasma::Containment::contextMenuEvent (this=<optimized out>, event=0x7fff9053c270) at ../../plasma/containment.cpp:623
#29 0x00007ff37f71055d in QGraphicsItem::sceneEvent (this=0x2f25200, event=0x7fff9053c270) at graphicsview/qgraphicsitem.cpp:6711
#30 0x00007ff37f73949e in QGraphicsScene::contextMenuEvent (this=<optimized out>, contextMenuEvent=0x7fff9053c270) at graphicsview/qgraphicsscene.cpp:3617
#31 0x00007ff37f74d090 in QGraphicsScene::event (this=0x2651580, event=0x7fff9053c270) at graphicsview/qgraphicsscene.cpp:3412
#32 0x00007ff37f14fe9c in QApplicationPrivate::notify_helper (this=this@entry=0x260cb80, receiver=receiver@entry=0x2651580, e=e@entry=0x7fff9053c270) at kernel/qapplication.cpp:4562
#33 0x00007ff37f15430a in QApplication::notify (this=0x2609280, receiver=0x2651580, e=0x7fff9053c270) at kernel/qapplication.cpp:4423
#34 0x00007ff380a61636 in KApplication::notify (this=0x2609280, receiver=0x2651580, event=0x7fff9053c270) at ../../kdeui/kernel/kapplication.cpp:311
#35 0x00007ff37fda856e in QCoreApplication::notifyInternal (this=0x2609280, receiver=0x2651580, event=0x7fff9053c270) at kernel/qcoreapplication.cpp:915
#36 0x00007ff37f75e502 in sendEvent (event=0x7fff9053c270, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#37 QGraphicsView::contextMenuEvent (this=0x3404c50, event=0x7fff9053cb20) at graphicsview/qgraphicsview.cpp:2892
#38 0x00007ff37f19f59a in QWidget::event (this=0x3404c50, event=0x7fff9053cb20) at kernel/qwidget.cpp:8538
#39 0x00007ff37f54eb66 in QFrame::event (this=0x3404c50, e=0x7fff9053cb20) at widgets/qframe.cpp:557
#40 0x00007ff37f76695b in QGraphicsView::viewportEvent (this=0x3404c50, event=0x7fff9053cb20) at graphicsview/qgraphicsview.cpp:2866
#41 0x00007ff37fda86d6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x3dec1e0, event=0x7fff9053cb20) at kernel/qcoreapplication.cpp:1025
#42 0x00007ff37f14fe6c in QApplicationPrivate::notify_helper (this=this@entry=0x260cb80, receiver=receiver@entry=0x3dec1e0, e=e@entry=0x7fff9053cb20) at kernel/qapplication.cpp:4558
#43 0x00007ff37f154875 in QApplication::notify (this=<optimized out>, receiver=0x3dec1e0, e=0x7fff9053cb20) at kernel/qapplication.cpp:4184
#44 0x00007ff380a61636 in KApplication::notify (this=0x2609280, receiver=0x3dec1e0, event=0x7fff9053cb20) at ../../kdeui/kernel/kapplication.cpp:311
#45 0x00007ff37fda856e in QCoreApplication::notifyInternal (this=0x2609280, receiver=0x3dec1e0, event=0x7fff9053cb20) at kernel/qcoreapplication.cpp:915
#46 0x00007ff37f1ce5b1 in sendSpontaneousEvent (event=0x7fff9053cb20, receiver=0x3dec1e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#47 QETWidget::translateMouseEvent (this=this@entry=0x3404c50, event=event@entry=0x7fff9053d270) at kernel/qapplication_x11.cpp:4627
#48 0x00007ff37f1cd44f in QApplication::x11ProcessEvent (this=0x2609280, event=0x7fff9053d270) at kernel/qapplication_x11.cpp:3737
#49 0x00007ff37f1f4fa2 in x11EventSourceDispatch (s=s@entry=0x25f3540, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#50 0x00007ff376ddcab5 in g_main_dispatch (context=0x260dd20) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:2715
#51 g_main_context_dispatch (context=context@entry=0x260dd20) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3219
#52 0x00007ff376ddcde8 in g_main_context_iterate (context=context@entry=0x260dd20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3290
#53 0x00007ff376ddcea4 in g_main_context_iteration (context=0x260dd20, may_block=1) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3351
#54 0x00007ff37fdd6bf6 in QEventDispatcherGlib::processEvents (this=0x24c0ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#55 0x00007ff37f1f4c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#56 0x00007ff37fda72bf in QEventLoop::processEvents (this=this@entry=0x7fff9053d640, flags=...) at kernel/qeventloop.cpp:149
#57 0x00007ff37fda7548 in QEventLoop::exec (this=0x7fff9053d640, flags=...) at kernel/qeventloop.cpp:204
#58 0x00007ff37fdac708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#59 0x00007ff3834f21b1 in kdemain (argc=1, argv=0x7fff9053d938) at ../../../../plasma/desktop/shell/main.cpp:126
#60 0x00007ff38311776d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fff9053d938, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9053d928) at libc-start.c:226
#61 0x00000000004006d1 in _start ()

Reported using DrKonqi