Bug 251627

Application: amarok (2.3.1)
KDE Platform Version: 4.4.5 (KDE 4.4.5) (Compiled from sources)
Qt Version: 4.6.3
Operating System: Linux 2.6.32-5-686 i686
Distribution: Debian GNU/Linux testing (squeeze)

-- Information about the crash:
I upgrade squeeze. After upgrade Amarok doesn't start. I remove  file  & program from my system & Install again. Now when I trying unmount my portable drive one's appear error.

The crash can be reproduced every time.

 -- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
__pthread_mutex_unlock_usercnt (mutex=0x940ccf4, decr=1)
    at pthread_mutex_unlock.c:36
	in pthread_mutex_unlock.c
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0xb27d2720 (LWP 4875))]

Thread 13 (Thread 0xac576b70 (LWP 4879)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c18482 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:179
#2  0xb58afe64 in __pthread_cond_timedwait (cond=0x9547420, mutex=0x9547408, abstime=0xac576310) at forward.c:152
#3  0xb0d88bdf in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 12 (Thread 0xacd77b70 (LWP 4880)):
#0  0xb36bde16 in *__GI_clock_gettime (clock_id=-1284759564, tp=0xacd76fb8) at ../sysdeps/unix/clock_gettime.c:100
#1  0xb66681db in qt_gettime () at kernel/qcore_unix.cpp:111
#2  0xb666d435 in QTimerInfoList::updateCurrentTime (this=0x954a0cc) at kernel/qeventdispatcher_unix.cpp:340
#3  0xb666d47a in QTimerInfoList::timerWait (this=0x954a0cc, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#4  0xb666b2e8 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xacd770ac) at kernel/qeventdispatcher_glib.cpp:136
#5  0xb362f7ca in g_main_context_prepare () from /lib/libglib-2.0.so.0
#6  0xb362fbe9 in ?? () from /lib/libglib-2.0.so.0
#7  0xb36301b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#8  0xb666b0df in QEventDispatcherGlib::processEvents (this=0x94de310, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#9  0xb663db19 in QEventLoop::processEvents (this=0xacd77270, flags=) at kernel/qeventloop.cpp:149
#10 0xb663df6a in QEventLoop::exec (this=0xacd77270, flags=...) at kernel/qeventloop.cpp:201
#11 0xb6540629 in QThread::exec (this=0x94da680) at thread/qthread.cpp:487
#12 0xb0dd694a in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_xine.so
#13 0xb6542fbe in QThreadPrivate::start (arg=0x94da680) at thread/qthread_unix.cpp:248
#14 0xb3c13955 in start_thread (arg=0xacd77b70) at pthread_create.c:300
#15 0xb58a2e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 11 (Thread 0xaf9d6b70 (LWP 4883)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb5895696 in *__GI___poll (fds=0xb5918ff4, nfds=1, timeout=333) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xaf9daa5f in ?? () from /usr/lib/xine/plugins/1.29/xineplug_ao_out_alsa.so
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 10 (Thread 0xaf1d5b70 (LWP 4884)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0x9569ba8, mutex=0x9569b90) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0x9569ba8, mutex=0x9569b90) at forward.c:139
#3  0xb0d9987e in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 9 (Thread 0xae7ffb70 (LWP 4885)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0x95867d0, mutex=0x95867b8) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0x95867d0, mutex=0x95867b8) at forward.c:139
#3  0xb0d9987e in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 8 (Thread 0xadffeb70 (LWP 4886)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0x9460218, mutex=0x9460200) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0x9460218, mutex=0x9460200) at forward.c:139
#3  0xb0d9987e in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 7 (Thread 0xad5ffb70 (LWP 4887)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0xae81e708, mutex=0xae81e6f0) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0xae81e708, mutex=0xae81e6f0) at forward.c:139
#3  0xb0d9987e in ?? () from /usr/lib/libxine.so.1
#4  0x00000000 in ?? ()

Thread 6 (Thread 0xab6eeb70 (LWP 4889)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0x9eb33a0, mutex=0x9eb3388) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0x9eb33a0, mutex=0x9eb3388) at forward.c:139
#3  0xb6543fb7 in QWaitConditionPrivate::wait (this=0x9eb3288, mutex=0x9eb3528, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x9eb3288, mutex=0x9eb3528, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xb50a2682 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9eb3270, th=0x9eb36d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0xb50a53dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9eb3608, th=0x9eb36d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0xb50a124b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9eb3270, th=0x9eb36d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0xb50a54d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9eb3608, th=0x9eb36d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0xb50a2be3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9eb3270, th=0x9eb36d0, previous=0x9ae82d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xb50a357e in ThreadWeaver::ThreadRunHelper::run (this=0xab6ee2e4, parent=0x9eb3270, th=0x9eb36d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0xb50a3c9b in ThreadWeaver::Thread::run (this=0x9eb36d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0xb6542fbe in QThreadPrivate::start (arg=0x9eb36d0) at thread/qthread_unix.cpp:248
#13 0xb3c13955 in start_thread (arg=0xab6eeb70) at pthread_create.c:300
#14 0xb58a2e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 5 (Thread 0xa91c6b70 (LWP 4890)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0x9eb33a0, mutex=0x9eb3388) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0x9eb33a0, mutex=0x9eb3388) at forward.c:139
#3  0xb6543fb7 in QWaitConditionPrivate::wait (this=0x9eb3288, mutex=0x9eb3528, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x9eb3288, mutex=0x9eb3528, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xb50a2682 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9eb3270, th=0xae8ff618) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0xb50a53dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9eb3608, th=0xae8ff618) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0xb50a124b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9eb3270, th=0xae8ff618) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0xb50a54d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9eb3608, th=0xae8ff618) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0xb50a2be3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9eb3270, th=0xae8ff618, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xb50a54f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9eb3608, th=0xae8ff618) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0xb50a2be3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9eb3270, th=0xae8ff618, previous=0xa021548) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0xb50a357e in ThreadWeaver::ThreadRunHelper::run (this=0xa91c62e4, parent=0x9eb3270, th=0xae8ff618) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0xb50a3c9b in ThreadWeaver::Thread::run (this=0xae8ff618) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0xb6542fbe in QThreadPrivate::start (arg=0xae8ff618) at thread/qthread_unix.cpp:248
#15 0xb3c13955 in start_thread (arg=0xa91c6b70) at pthread_create.c:300
#16 0xb58a2e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xa87e0b70 (LWP 4891)):
[KCrash Handler]
#6  0xb394afba in KDirWatch::isStopped (this=0xad6e6444) at ../../kio/kio/kdirwatch.cpp:1746
#7  0xb39526d9 in KDirWatchPrivate::addEntry (this=0x9d3a2d0, instance=0x9abfd98, _path=..., sub_entry=0x0, isDir=true, watchModes=...) at ../../kio/kio/kdirwatch.cpp:797
#8  0xb39521d0 in KDirWatchPrivate::addEntry (this=0x9d3a2d0, instance=0x9abfd98, _path=..., sub_entry=0x0, isDir=true, watchModes=...) at ../../kio/kio/kdirwatch.cpp:844
#9  0xb39521d0 in KDirWatchPrivate::addEntry (this=0x9d3a2d0, instance=0x9abfd98, _path=..., sub_entry=0x0, isDir=true, watchModes=...) at ../../kio/kio/kdirwatch.cpp:844
#10 0xb39521d0 in KDirWatchPrivate::addEntry (this=0x9d3a2d0, instance=0x9abfd98, _path=..., sub_entry=0x0, isDir=true, watchModes=...) at ../../kio/kio/kdirwatch.cpp:844
#11 0xb39521d0 in KDirWatchPrivate::addEntry (this=0x9d3a2d0, instance=0x9abfd98, _path=..., sub_entry=0x0, isDir=true, watchModes=...) at ../../kio/kio/kdirwatch.cpp:844
#12 0xb39521d0 in KDirWatchPrivate::addEntry (this=0x9d3a2d0, instance=0x9abfd98, _path=..., sub_entry=0x0, isDir=true, watchModes=...) at ../../kio/kio/kdirwatch.cpp:844
#13 0xb39521d0 in KDirWatchPrivate::addEntry (this=0x9d3a2d0, instance=0x9abfd98, _path=..., sub_entry=0x0, isDir=true, watchModes=...) at ../../kio/kio/kdirwatch.cpp:844
#14 0xb3952b72 in KDirWatch::addDir (this=0xad600000, _path=..., watchModes=...) at ../../kio/kio/kdirwatch.cpp:1686
#15 0xaa6d5f91 in Meta::UmsHandler::prepareToParseTracks (this=0x9abfd18) at ../../../../../src/core-impl/collections/umscollection/handler/UmsHandler.cpp:831
#16 0xaa6d9da7 in Handler::UmsReadCapability::prepareToParseTracks (this=0xad66b280) at ../../../../../src/core-impl/collections/umscollection/handler/capabilities/UmsReadCapability.cpp:31
#17 0xb6caf36a in Meta::MediaDeviceHandler::privateParseTracks (this=0x9abfd18) at ../../src/core-impl/collections/mediadevicecollection/handler/MediaDeviceHandler.cpp:832
#18 0xb6cb0de5 in Meta::ParseWorkerThread::run (this=0xa021928) at ../../src/core-impl/collections/mediadevicecollection/handler/MediaDeviceHandler.cpp:1277
#19 0xb50a44f7 in ThreadWeaver::JobRunHelper::runTheJob (this=0xa87e025c, th=0x9d25158, job=0xa021928) at ../../../threadweaver/Weaver/Job.cpp:106
#20 0xb50a4851 in ThreadWeaver::Job::execute (this=0xa021928, th=0x9d25158) at ../../../threadweaver/Weaver/Job.cpp:135
#21 0xb50a354a in ThreadWeaver::ThreadRunHelper::run (this=0xa87e02e4, parent=0x9eb3270, th=0x9d25158) at ../../../threadweaver/Weaver/Thread.cpp:95
#22 0xb50a3c9b in ThreadWeaver::Thread::run (this=0x9d25158) at ../../../threadweaver/Weaver/Thread.cpp:142
#23 0xb6542fbe in QThreadPrivate::start (arg=0x9d25158) at thread/qthread_unix.cpp:248
#24 0xb3c13955 in start_thread (arg=0xa87e0b70) at pthread_create.c:300
#25 0xb58a2e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xa7fdfb70 (LWP 4892)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0x9eb33a0, mutex=0x9eb3388) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0x9eb33a0, mutex=0x9eb3388) at forward.c:139
#3  0xb6543fb7 in QWaitConditionPrivate::wait (this=0x9eb3288, mutex=0x9eb3528, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x9eb3288, mutex=0x9eb3528, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xb50a2682 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9eb3270, th=0x9d209c8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0xb50a53dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9eb3608, th=0x9d209c8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0xb50a124b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9eb3270, th=0x9d209c8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0xb50a54d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9eb3608, th=0x9d209c8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0xb50a2be3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9eb3270, th=0x9d209c8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xb50a54f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9eb3608, th=0x9d209c8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0xb50a2be3 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9eb3270, th=0x9d209c8, previous=0xa019580) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0xb50a357e in ThreadWeaver::ThreadRunHelper::run (this=0xa7fdf2e4, parent=0x9eb3270, th=0x9d209c8) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0xb50a3c9b in ThreadWeaver::Thread::run (this=0x9d209c8) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0xb6542fbe in QThreadPrivate::start (arg=0x9d209c8) at thread/qthread_unix.cpp:248
#15 0xb3c13955 in start_thread (arg=0xa7fdfb70) at pthread_create.c:300
#16 0xb58a2e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xa6fddb70 (LWP 4895)):
#0  0xb76f5424 in __kernel_vsyscall ()
#1  0xb3c17f7f in __pthread_cond_wait (cond=0xb4ff724c, mutex=0xb4ff7234) at pthread_cond_wait.c:153
#2  0xb58afe0d in __pthread_cond_wait (cond=0xb4ff724c, mutex=0xb4ff7234) at forward.c:139
#3  0xb4f19417 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb4ff2160) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#4  0xb4f19461 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb4ff2160) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#5  0xb3c13955 in start_thread (arg=0xa6fddb70) at pthread_create.c:300
#6  0xb58a2e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb27d2720 (LWP 4875)):
#0  __pthread_mutex_unlock_usercnt (mutex=0x940ccf4, decr=1) at pthread_mutex_unlock.c:36
#1  0xb58b0016 in pthread_mutex_unlock (mutex=0x940ccf4) at forward.c:184
#2  0xb34ae0d1 in ?? () from /usr/lib/libxcb.so.1
#3  0xb34b0761 in xcb_wait_for_reply () from /usr/lib/libxcb.so.1
#4  0xb56867a6 in _XReply () from /usr/lib/libX11.so.6
#5  0xb56740ad in XQueryPointer () from /usr/lib/libX11.so.6
#6  0xb5c25f60 in QCursor::pos () at kernel/qcursor_x11.cpp:155
#7  0xb6b33f6d in CollectionTreeItemDelegate::paint (this=0x9e1dc80, painter=0xbfc65e4c, option=..., index=...) at ../../src/browsers/collectionbrowser/CollectionTreeItemDelegate.cpp:158
#8  0xb61778f0 in QTreeView::drawRow (this=0x9e26068, painter=0xbfc65e4c, option=..., index=...) at itemviews/qtreeview.cpp:1670
#9  0xb70a9fc4 in Amarok::PrettyTreeView::drawRow (this=0x9e26068, painter=0xbfc65e4c, option=..., index=...) at ../../src/widgets/PrettyTreeView.cpp:42
#10 0xb6170e39 in QTreeView::drawTree (this=0x9e26068, painter=0xbfc65e4c, region=...) at itemviews/qtreeview.cpp:1433
#11 0xb61710ed in QTreeView::paintEvent (this=0x9e26068, event=0xbfc66704) at itemviews/qtreeview.cpp:1266
#12 0xb5be66b6 in QWidget::event (this=0x9e26068, event=0xbfc66704) at kernel/qwidget.cpp:8190
#13 0xb5fe0903 in QFrame::event (this=0x9e26068, e=0xbfc66704) at widgets/qframe.cpp:557
#14 0xb607b0c2 in QAbstractScrollArea::viewportEvent (this=0x1, e=0x1) at widgets/qabstractscrollarea.cpp:1036
#15 0xb61308d7 in QAbstractItemView::viewportEvent (this=0x9e26068, event=0xbfc66704) at itemviews/qabstractitemview.cpp:1615
#16 0xb617012c in QTreeView::viewportEvent (this=0x9e26068, event=0xbfc66704) at itemviews/qtreeview.cpp:1248
#17 0xb607da95 in QAbstractScrollAreaPrivate::viewportEvent (this=0x9403810, o=0x945ef78, e=0xbfc66704) at widgets/qabstractscrollarea_p.h:100
#18 QAbstractScrollAreaFilter::eventFilter (this=0x9403810, o=0x945ef78, e=0xbfc66704) at widgets/qabstractscrollarea_p.h:116
#19 0xb663e79a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x9404778, receiver=0x945ef78, event=0xbfc66704) at kernel/qcoreapplication.cpp:841
#20 0xb5b885a9 in QApplicationPrivate::notify_helper (this=0x9404778, receiver=0x945ef78, e=0xbfc66704) at kernel/qapplication.cpp:4298
#21 0xb5b8f1f9 in QApplication::notify (this=0xbfc688b8, receiver=0x945ef78, e=0xbfc66704) at kernel/qapplication.cpp:4267
#22 0xb7506c5a in KApplication::notify (this=0xbfc688b8, receiver=0x945ef78, event=0xbfc66704) at ../../kdeui/kernel/kapplication.cpp:302
#23 0xb663f4fb in QCoreApplication::notifyInternal (this=0xbfc688b8, receiver=0x945ef78, event=0xbfc66704) at kernel/qcoreapplication.cpp:726
#24 0xb5bef9a6 in QCoreApplication::sendSpontaneousEvent (this=0x945ef90, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#25 QWidgetPrivate::drawWidget (this=0x945ef90, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5363
#26 0xb5bf07e5 in QWidgetPrivate::paintSiblingsRecursive (this=0x9cf8698, pdev=0x9f2b62c, siblings=..., index=7, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9417498)
    at kernel/qwidget.cpp:5476
#27 0xb5bef6f5 in QWidgetPrivate::drawWidget (this=0x9cf8698, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5412
#28 0xb5bf07e5 in QWidgetPrivate::paintSiblingsRecursive (this=0x9cf8430, pdev=0x9f2b62c, siblings=..., index=4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9417498)
    at kernel/qwidget.cpp:5476
#29 0xb5bef6f5 in QWidgetPrivate::drawWidget (this=0x9cf8430, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5412
#30 0xb5bf07e5 in QWidgetPrivate::paintSiblingsRecursive (this=0x9e26760, pdev=0x9f2b62c, siblings=..., index=11, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9417498)
    at kernel/qwidget.cpp:5476
#31 0xb5bef6f5 in QWidgetPrivate::drawWidget (this=0x9e26760, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5412
#32 0xb5bf07e5 in QWidgetPrivate::paintSiblingsRecursive (this=0x9c9f658, pdev=0x9f2b62c, siblings=..., index=3, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9417498)
    at kernel/qwidget.cpp:5476
#33 0xb5bef6f5 in QWidgetPrivate::drawWidget (this=0x9c9f658, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5412
#34 0xb5bf07e5 in QWidgetPrivate::paintSiblingsRecursive (this=0x9c1ac58, pdev=0x9f2b62c, siblings=..., index=4, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9417498)
    at kernel/qwidget.cpp:5476
#35 0xb5bef6f5 in QWidgetPrivate::drawWidget (this=0x9c1ac58, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5412
#36 0xb5bf07e5 in QWidgetPrivate::paintSiblingsRecursive (this=0x9cafc80, pdev=0x9f2b62c, siblings=..., index=5, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9417498)
    at kernel/qwidget.cpp:5476
#37 0xb5bef6f5 in QWidgetPrivate::drawWidget (this=0x9cafc80, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5412
#38 0xb5bf07e5 in QWidgetPrivate::paintSiblingsRecursive (this=0x99941d0, pdev=0x9f2b62c, siblings=..., index=93, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x9417498)
    at kernel/qwidget.cpp:5476
#39 0xb5bef6f5 in QWidgetPrivate::drawWidget (this=0x99941d0, pdev=0x9f2b62c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9417498) at kernel/qwidget.cpp:5412
#40 0xb5dc5604 in QWidgetBackingStore::sync (this=0x9417498) at painting/qbackingstore.cpp:1300
#41 0xb5be01a3 in QWidgetPrivate::syncBackingStore (this=0x99941d0) at kernel/qwidget.cpp:1688
#42 0xb5be6e76 in QWidget::event (this=0x9584d08, event=0x9ef17d8) at kernel/qwidget.cpp:8337
#43 0xb5fff737 in QMainWindow::event (this=0x9584d08, event=0x9ef17d8) at widgets/qmainwindow.cpp:1414
#44 0xb75f7d64 in KMainWindow::event (this=0x9584d08, ev=0x9ef17d8) at ../../kdeui/widgets/kmainwindow.cpp:1103
#45 0xb5b885cc in QApplicationPrivate::notify_helper (this=0x9404778, receiver=0x9584d08, e=0x9ef17d8) at kernel/qapplication.cpp:4302
#46 0xb5b8f1f9 in QApplication::notify (this=0xbfc688b8, receiver=0x9584d08, e=0x9ef17d8) at kernel/qapplication.cpp:4267
#47 0xb7506c5a in KApplication::notify (this=0xbfc688b8, receiver=0x9584d08, event=0x9ef17d8) at ../../kdeui/kernel/kapplication.cpp:302
#48 0xb663f4fb in QCoreApplication::notifyInternal (this=0xbfc688b8, receiver=0x9584d08, event=0x9ef17d8) at kernel/qcoreapplication.cpp:726
#49 0xb6642f5c in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9310c78) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#50 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9310c78) at kernel/qcoreapplication.cpp:1367
#51 0xb66430dd in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1260
#52 0xb666b5af in QCoreApplication::sendPostedEvents (s=0x93ffb10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#53 postEventSourceDispatch (s=0x93ffb10) at kernel/qeventdispatcher_glib.cpp:276
#54 0xb362c2f5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#55 0xb362ffd8 in ?? () from /lib/libglib-2.0.so.0
#56 0xb36301b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#57 0xb666b0a5 in QEventDispatcherGlib::processEvents (this=0x93109e0, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#58 0xb5c46f25 in QGuiEventDispatcherGlib::processEvents (this=0x93109e0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#59 0xb663db19 in QEventLoop::processEvents (this=0xbfc68824, flags=) at kernel/qeventloop.cpp:149
#60 0xb663df6a in QEventLoop::exec (this=0xbfc68824, flags=...) at kernel/qeventloop.cpp:201
#61 0xb664319f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#62 0xb5b88667 in QApplication::exec () at kernel/qapplication.cpp:3581
#63 0x0804ffe1 in main (argc=1, argv=0xbfc69134) at ../../src/main.cpp:237

Reported using DrKonqi