Bug 297075

Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.3.0-4.fc16.x86_64 x86_64
Distribution: "Fedora release 16 (Verne)"

-- Information about the crash:
- What I was doing when the application crashed:
Opening Microsoft Word in Wine.

- Custom settings of the application:
Kde is set up with two virtual destops, each with different widget set.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f57295d1840 (LWP 31237))]

Thread 11 (Thread 0x7f570cdf4700 (LWP 31239)):
#0  0x00000030b72e85c3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003dbb044fd8 in g_main_context_poll (n_fds=1, fds=0x7f5708002400, priority=<optimized out>, timeout=-1, context=0x7f57080009a0) at gmain.c:3402
#2  g_main_context_iterate (context=0x7f57080009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3084
#3  0x0000003dbb04549c in g_main_context_iteration (context=0x7f57080009a0, may_block=1) at gmain.c:3152
#4  0x000000381e9a7dc6 in QEventDispatcherGlib::processEvents (this=0x7f57080008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x000000381e978182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x000000381e9783d7 in QEventLoop::exec (this=0x7f570cdf3d10, flags=...) at kernel/qeventloop.cpp:204
#7  0x000000381e878b27 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x000000381e957e7f in QInotifyFileSystemWatcherEngine::run (this=0x3c85b00) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x000000381e87bb6b in QThreadPrivate::start (arg=0x3c85b00) at thread/qthread_unix.cpp:298
#10 0x00000030b7a07d90 in start_thread (arg=0x7f570cdf4700) at pthread_create.c:309
#11 0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 10 (Thread 0x7f5705673700 (LWP 31242)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000382eb84e62 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x382ee7e240) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x000000382eb84e99 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00000030b7a07d90 in start_thread (arg=0x7f5705673700) at pthread_create.c:309
#4  0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 9 (Thread 0x7f56fec8f700 (LWP 379)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0x53ba420) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x53ba420) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56fec8ed60, parent=0x3819980, th=0x53ba420) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#6  0x000000383120c27b in ThreadWeaver::Thread::run (this=0x53ba420) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#7  0x000000381e87bb6b in QThreadPrivate::start (arg=0x53ba420) at thread/qthread_unix.cpp:298
#8  0x00000030b7a07d90 in start_thread (arg=0x7f56fec8f700) at pthread_create.c:309
#9  0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 8 (Thread 0x7f56e828f700 (LWP 380)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0x4a64820) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x4a64820) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56e828ed60, parent=0x3819980, th=0x4a64820) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#6  0x000000383120c27b in ThreadWeaver::Thread::run (this=0x4a64820) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#7  0x000000381e87bb6b in QThreadPrivate::start (arg=0x4a64820) at thread/qthread_unix.cpp:298
#8  0x00000030b7a07d90 in start_thread (arg=0x7f56e828f700) at pthread_create.c:309
#9  0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 7 (Thread 0x7f56f7816700 (LWP 381)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0x6f8e9a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x6f8e9a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56f7815d60, parent=0x3819980, th=0x6f8e9a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#6  0x000000383120c27b in ThreadWeaver::Thread::run (this=0x6f8e9a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#7  0x000000381e87bb6b in QThreadPrivate::start (arg=0x6f8e9a0) at thread/qthread_unix.cpp:298
#8  0x00000030b7a07d90 in start_thread (arg=0x7f56f7816700) at pthread_create.c:309
#9  0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 6 (Thread 0x7f56fd4bb700 (LWP 382)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0x82f83a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x82f83a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120d394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x82f83a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56fd4bad60, parent=0x3819980, th=0x82f83a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#7  0x000000383120c27b in ThreadWeaver::Thread::run (this=0x82f83a0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#8  0x000000381e87bb6b in QThreadPrivate::start (arg=0x82f83a0) at thread/qthread_unix.cpp:298
#9  0x00000030b7a07d90 in start_thread (arg=0x7f56fd4bb700) at pthread_create.c:309
#10 0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 5 (Thread 0x7f56d739a700 (LWP 383)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0x5226ca0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x5226ca0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56d7399d60, parent=0x3819980, th=0x5226ca0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#6  0x000000383120c27b in ThreadWeaver::Thread::run (this=0x5226ca0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#7  0x000000381e87bb6b in QThreadPrivate::start (arg=0x5226ca0) at thread/qthread_unix.cpp:298
#8  0x00000030b7a07d90 in start_thread (arg=0x7f56d739a700) at pthread_create.c:309
#9  0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 4 (Thread 0x7f56d5eaf700 (LWP 384)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0x821c5d0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x821c5d0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120d394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x821c5d0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56d5eaed60, parent=0x3819980, th=0x821c5d0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#7  0x000000383120c27b in ThreadWeaver::Thread::run (this=0x821c5d0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#8  0x000000381e87bb6b in QThreadPrivate::start (arg=0x821c5d0) at thread/qthread_unix.cpp:298
#9  0x00000030b7a07d90 in start_thread (arg=0x7f56d5eaf700) at pthread_create.c:309
#10 0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 3 (Thread 0x7f56d56ae700 (LWP 385)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0xab5ceb0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0xab5ceb0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56d56add60, parent=0x3819980, th=0xab5ceb0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#6  0x000000383120c27b in ThreadWeaver::Thread::run (this=0xab5ceb0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#7  0x000000381e87bb6b in QThreadPrivate::start (arg=0xab5ceb0) at thread/qthread_unix.cpp:298
#8  0x00000030b7a07d90 in start_thread (arg=0x7f56d56ae700) at pthread_create.c:309
#9  0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f56d4ead700 (LWP 386)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000381e87c07b in wait (time=18446744073709551615, this=0x380e490) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x37ee550, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000383120aa8b in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x3819980, th=0x4a184c0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000383120d37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x4a184c0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000383120d394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x37bca40, th=0x4a184c0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x000000383120c1ef in ThreadWeaver::ThreadRunHelper::run (this=0x7f56d4eacd60, parent=0x3819980, th=0x4a184c0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:87
#7  0x000000383120c27b in ThreadWeaver::Thread::run (this=0x4a184c0) at /usr/src/debug/kdelibs-4.8.1/threadweaver/Weaver/Thread.cpp:142
#8  0x000000381e87bb6b in QThreadPrivate::start (arg=0x4a184c0) at thread/qthread_unix.cpp:298
#9  0x00000030b7a07d90 in start_thread (arg=0x7f56d4ead700) at pthread_create.c:309
#10 0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f57295d1840 (LWP 31237)):
[KCrash Handler]
#6  QMetaObject::indexOfProperty (this=0x36678b4580, name=0x7f5717dba553 "group") at kernel/qmetaobject.cpp:738
#7  0x000000381e98b268 in QObject::property (this=0xa823e60, name=0x7f5717dba553 "group") at kernel/qobject.cpp:3745
#8  0x00007f5717d9d3ba in GroupingContainmentPrivate::onWidgetMoved (this=0x7dd3740, widget=0xa823e60) at /usr/src/debug/kdeplasma-addons-4.8.1/containments/groupingdesktop/lib/groupingcontainment.cpp:374
#9  0x00007f5717d9da27 in GroupingContainment::setMovingWidget (this=0x4319a90, widget=0x4096480) at /usr/src/debug/kdeplasma-addons-4.8.1/containments/groupingdesktop/lib/groupingcontainment.cpp:977
#10 0x00007f5717da2326 in FreeHandle::mousePressEvent (this=0xa66e1b0, event=0x7fff78973620) at /usr/src/debug/kdeplasma-addons-4.8.1/containments/groupingdesktop/lib/freehandle.cpp:482
#11 0x00000036673a3797 in QGraphicsItem::sceneEvent (this=0xa66e1c0, event=0x7fff78973620) at graphicsview/qgraphicsitem.cpp:6738
#12 0x00007f5717da6382 in FreeHandle::sceneEvent (this=0xa66e1b0, event=<optimized out>) at /usr/src/debug/kdeplasma-addons-4.8.1/containments/groupingdesktop/lib/freehandle.cpp:823
#13 0x00000036673cbeca in QGraphicsScenePrivate::sendMouseEvent (this=0x2344610, mouseEvent=0x7fff78973620) at graphicsview/qgraphicsscene.cpp:1291
#14 0x00000036673d0f84 in QGraphicsScenePrivate::mousePressEventHandler (this=0x2344610, mouseEvent=0x7fff78973620) at graphicsview/qgraphicsscene.cpp:1418
#15 0x00000036673d14cf in QGraphicsScene::mousePressEvent (this=<optimized out>, mouseEvent=0x7fff78973620) at graphicsview/qgraphicsscene.cpp:4070
#16 0x00000036673dab6f in QGraphicsScene::event (this=0x2342b70, event=0x7fff78973620) at graphicsview/qgraphicsscene.cpp:3451
#17 0x0000003666dc9994 in notify_helper (e=0x7fff78973620, receiver=0x2342b70, this=0x233bdb0) at kernel/qapplication.cpp:4550
#18 QApplicationPrivate::notify_helper (this=0x233bdb0, receiver=0x2342b70, e=0x7fff78973620) at kernel/qapplication.cpp:4522
#19 0x0000003666dce813 in QApplication::notify (this=0x2335210, receiver=0x2342b70, e=0x7fff78973620) at kernel/qapplication.cpp:4411
#20 0x0000003668451d56 in KApplication::notify (this=0x2335210, receiver=0x2342b70, event=0x7fff78973620) at /usr/src/debug/kdelibs-4.8.1/kdeui/kernel/kapplication.cpp:311
#21 0x000000381e97904c in QCoreApplication::notifyInternal (this=0x2335210, receiver=0x2342b70, event=0x7fff78973620) at kernel/qcoreapplication.cpp:876
#22 0x00000036673f021f in QGraphicsView::mousePressEvent (this=0x4e4f590, event=0x7fff78973fb0) at graphicsview/qgraphicsview.cpp:3164
#23 0x0000003666e1a319 in QWidget::event (this=0x4e4f590, event=0x7fff78973fb0) at kernel/qwidget.cpp:8357
#24 0x00000036671d1bd6 in QFrame::event (this=0x4e4f590, e=0x7fff78973fb0) at widgets/qframe.cpp:557
#25 0x00000036673f8e6b in QGraphicsView::viewportEvent (this=0x4e4f590, event=0x7fff78973fb0) at graphicsview/qgraphicsview.cpp:2866
#26 0x000000381e9791d8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x6bcfa70, event=0x7fff78973fb0) at kernel/qcoreapplication.cpp:986
#27 0x0000003666dc995f in notify_helper (e=0x7fff78973fb0, receiver=0x6bcfa70, this=0x233bdb0) at kernel/qapplication.cpp:4546
#28 QApplicationPrivate::notify_helper (this=0x233bdb0, receiver=0x6bcfa70, e=0x7fff78973fb0) at kernel/qapplication.cpp:4522
#29 0x0000003666dcf0e3 in QApplication::notify (this=<optimized out>, receiver=0x6bcfa70, e=0x7fff78973fb0) at kernel/qapplication.cpp:4093
#30 0x0000003668451d56 in KApplication::notify (this=0x2335210, receiver=0x6bcfa70, event=0x7fff78973fb0) at /usr/src/debug/kdelibs-4.8.1/kdeui/kernel/kapplication.cpp:311
#31 0x000000381e97904c in QCoreApplication::notifyInternal (this=0x2335210, receiver=0x6bcfa70, event=0x7fff78973fb0) at kernel/qcoreapplication.cpp:876
#32 0x0000003666dca962 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#33 QApplicationPrivate::sendMouseEvent (receiver=0x6bcfa70, event=0x7fff78973fb0, alienWidget=0x6bcfa70, nativeWidget=0x4e4f590, buttonDown=0x6bcfa70, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3161
#34 0x0000003666e462e5 in QETWidget::translateMouseEvent (this=0x4e4f590, event=<optimized out>) at kernel/qapplication_x11.cpp:4520
#35 0x0000003666e451aa in QApplication::x11ProcessEvent (this=0x2335210, event=0x7fff78974870) at kernel/qapplication_x11.cpp:3641
#36 0x0000003666e6c97c in x11EventSourceDispatch (s=0x234ab30, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#37 0x0000003dbb044acd in g_main_dispatch (context=0x2349800) at gmain.c:2441
#38 g_main_context_dispatch (context=0x2349800) at gmain.c:3011
#39 0x0000003dbb0452c8 in g_main_context_iterate (context=0x2349800, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3089
#40 0x0000003dbb04549c in g_main_context_iteration (context=0x2349800, may_block=1) at gmain.c:3152
#41 0x000000381e9a7d5f in QEventDispatcherGlib::processEvents (this=0x22ccb80, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#42 0x0000003666e6c66e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#43 0x000000381e978182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#44 0x000000381e9783d7 in QEventLoop::exec (this=0x7fff78974c40, flags=...) at kernel/qeventloop.cpp:204
#45 0x000000381e97cdd5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#46 0x000000366d0418a3 in kdemain (argc=1, argv=0x7fff78975028) at /usr/src/debug/kde-workspace-4.8.1/plasma/desktop/shell/main.cpp:120
#47 0x00000030b722169d in __libc_start_main (main=0x400850 <main(int, char**)>, argc=1, ubp_av=0x7fff78975028, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff78975018) at libc-start.c:226
#48 0x0000000000400881 in _start ()

Reported using DrKonqi