Application: amarok (2.3.2)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.32-25-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
I have two collections in Amarok: one on the local hard disk and one on a external USB-hard-drive.
How to reproduce: 
Connect external hard-drive
Amarok starts rescanning the collection
Click on the 'eject' button for the collection
Amarok crashes

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
__libc_enable_asynccancel ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:58
	in ../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S
[Current thread is 1 (Thread 0x7f0e29739820 (LWP 7035))]

Thread 15 (Thread 0x7f0e0b3b3710 (LWP 7037)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211
#1  0x00007f0e10471081 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f0e0abb2710 (LWP 7038)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f0e0abb19b0 in ?? ()
#2  0x00007fff6ffe9852 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 13 (Thread 0x7f0e0a1a7710 (LWP 7041)):
#0  0x00007f0e264fdfb3 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=333) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0e0a1ac915 in ?? () from /usr/lib/xine/plugins/1.27/xineplug_ao_out_alsa.so
#2  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f0e099a6710 (LWP 7042)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e10481e23 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f0e08d9a710 (LWP 7043)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e10481e23 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f0e03fff710 (LWP 7044)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e10481e23 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f0e037fe710 (LWP 7045)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e10481e23 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f0e023ed710 (LWP 7047)):
[KCrash Handler]
#6  0x00007f0e26e71eed in QTextCodec::fromUnicode (this=0x2075a50, str=<value optimized out>) at codecs/qtextcodec.cpp:1375
#7  0x00007f0e26d924f1 in QString::toLocal8Bit (this=0x7f0e042f6ee0) at tools/qstring.cpp:3642
#8  0x00007f0e26dcda49 in locale_encode (f=...) at io/qfile.cpp:71
#9  0x00007f0e26dcd8ca in QFile::encodeName (fileName=...) at io/qfile.cpp:482
#10 0x00007f0e2727c638 in KDirWatchPrivate::useINotify (this=0x2c2c450, e=0x7f0e042f6eb8) at ../../kdecore/io/kdirwatch.cpp:663
#11 0x00007f0e2727c29d in KDirWatchPrivate::addEntry (this=0x2c2c450, instance=<value optimized out>, _path=<value optimized out>, sub_entry=0x0, isDir=<value optimized out>, 
    watchModes=<value optimized out>) at ../../kdecore/io/kdirwatch.cpp:894
#12 0x00007f0e2727bee6 in KDirWatchPrivate::addEntry (this=0x2c2c450, instance=0x2f81238, _path=<value optimized out>, sub_entry=0x0, isDir=<value optimized out>, watchModes=<value optimized out>)
    at ../../kdecore/io/kdirwatch.cpp:867
#13 0x00007f0e2727bee6 in KDirWatchPrivate::addEntry (this=0x2c2c450, instance=0x2f81238, _path=<value optimized out>, sub_entry=0x0, isDir=<value optimized out>, watchModes=<value optimized out>)
    at ../../kdecore/io/kdirwatch.cpp:867
#14 0x00007f0e2727c74b in KDirWatch::addDir (this=0x7f0e2716cb90, _path=<value optimized out>, watchModes=<value optimized out>) at ../../kdecore/io/kdirwatch.cpp:1755
#15 0x00007f0e0095393f in Meta::UmsHandler::prepareToParseTracks (this=0x2f81140) at ../../../../../src/core-impl/collections/umscollection/handler/UmsHandler.cpp:830
#16 0x00007f0e286920c3 in Meta::MediaDeviceHandler::privateParseTracks (this=0x2f81140) at ../../src/core-impl/collections/mediadevicecollection/handler/MediaDeviceHandler.cpp:833
#17 0x00007f0e28693cad in Meta::ParseWorkerThread::run (this=0x366aa40) at ../../src/core-impl/collections/mediadevicecollection/handler/MediaDeviceHandler.cpp:1278
#18 0x00007f0e22c531e1 in ThreadWeaver::JobRunHelper::runTheJob (this=0x7f0e023eccb0, th=0x2b9d3b0, job=0x366aa40) at ../../../threadweaver/Weaver/Job.cpp:106
#19 0x00007f0e22c534de in ThreadWeaver::Job::execute (this=0x366aa40, th=0x2b9d3b0) at ../../../threadweaver/Weaver/Job.cpp:135
#20 0x00007f0e22c524cf in ThreadWeaver::ThreadRunHelper::run (this=0x7f0e023ecd40, parent=0x2b8e0e0, th=0x2b9d3b0) at ../../../threadweaver/Weaver/Thread.cpp:95
#21 0x00007f0e22c52a58 in ThreadWeaver::Thread::run (this=0x2b9d3b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#22 0x00007f0e26d4d2ee in QThreadPrivate::start (arg=0x2b9d3b0) at thread/qthread_unix.cpp:266
#23 0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#24 0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#25 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f0df8074710 (LWP 7050)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e224907e4 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f0e2279b160) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f0e22490819 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f0e227a9234) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f0df477f710 (LWP 7053)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e26d4deab in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x2b8b610, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2b8b610, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f0e22c50d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2b8e0e0, th=0x2b777c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f0e22c53f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b777c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b777c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b777c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f0e22c524ff in ThreadWeaver::ThreadRunHelper::run (this=0x7f0df477ed40, parent=0x2b8e0e0, th=0x2b777c0) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f0e22c52a58 in ThreadWeaver::Thread::run (this=0x2b777c0) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f0e26d4d2ee in QThreadPrivate::start (arg=0x2b777c0) at thread/qthread_unix.cpp:266
#10 0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#11 0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f0df3f7e710 (LWP 7054)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e26d4deab in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x2b8b610, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2b8b610, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f0e22c50d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2b8e0e0, th=0x2b7a210) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f0e22c53f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b7a210) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b7a210) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b7a210) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b7a210) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2b7a210) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#9  0x00007f0e22c524ff in ThreadWeaver::ThreadRunHelper::run (this=0x7f0df3f7dd40, parent=0x2b8e0e0, th=0x2b7a210) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0x00007f0e22c52a58 in ThreadWeaver::Thread::run (this=0x2b7a210) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x00007f0e26d4d2ee in QThreadPrivate::start (arg=0x2b7a210) at thread/qthread_unix.cpp:266
#12 0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#13 0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f0df377d710 (LWP 7055)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e26d4deab in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x2b8b610, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2b8b610, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f0e22c50d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2b8e0e0, th=0x2787c40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f0e22c53f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2787c40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2787c40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f0e22c53fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2b89490, th=0x2787c40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f0e22c524ff in ThreadWeaver::ThreadRunHelper::run (this=0x7f0df377cd40, parent=0x2b8e0e0, th=0x2787c40) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f0e22c52a58 in ThreadWeaver::Thread::run (this=0x2787c40) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f0e26d4d2ee in QThreadPrivate::start (arg=0x2787c40) at thread/qthread_unix.cpp:266
#10 0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#11 0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f0debe27710 (LWP 7056)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f0debe269d0 in ?? ()
#2  0x00007fff6ffe9852 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7f0df273d710 (LWP 7057)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e1da1c2be in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007f0e1da1c3d9 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007f0e23ffe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f0e2650a72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0e29739820 (LWP 7035)):
#0  __libc_enable_asynccancel () at ../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:58
#1  0x00007f0e264fdf98 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:85
#2  0x00007f0e1e84829a in ?? () from /usr/lib/libxcb.so.1
#3  0x00007f0e1e849c2c in xcb_wait_for_reply () from /usr/lib/libxcb.so.1
#4  0x00007f0e25ab88d3 in _XReply () from /usr/lib/libX11.so.6
#5  0x00007f0e25aa5f50 in XQueryPointer () from /usr/lib/libX11.so.6
#6  0x00007f0e278a2dbd in QCursor::pos () at kernel/qcursor_x11.cpp:158
#7  0x00007f0e28531ba4 in CollectionTreeItemDelegate::paint (this=0x2a8ca00, painter=0x7fff6fe12fb0, option=..., index=...) at ../../src/browsers/collectionbrowser/CollectionTreeItemDelegate.cpp:159
#8  0x00007f0e27da6439 in QTreeView::drawRow (this=<value optimized out>, painter=<value optimized out>, option=<value optimized out>, index=<value optimized out>) at itemviews/qtreeview.cpp:1678
#9  0x00007f0e28a676c0 in Amarok::PrettyTreeView::drawRow (this=0x7fff6fe121a0, painter=0x1, option=..., index=...) at ../../src/widgets/PrettyTreeView.cpp:44
#10 0x00007f0e27da102a in QTreeView::drawTree (this=0x2a5d980, painter=<value optimized out>, region=<value optimized out>) at itemviews/qtreeview.cpp:1441
#11 0x00007f0e27da1af3 in QTreeView::paintEvent (this=0x2a5d980, event=0x7fff6fe13c00) at itemviews/qtreeview.cpp:1274
#12 0x00007f0e2786606e in QWidget::event (this=0x2a5d980, event=0x7fff6fe13c00) at kernel/qwidget.cpp:8333
#13 0x00007f0e27c2ce76 in QFrame::event (this=0x2a5d980, e=0x7fff6fe13c00) at widgets/qframe.cpp:557
#14 0x00007f0e27d64abb in QAbstractItemView::viewportEvent (this=0x2a5d980, event=0x7fff6fe13c00) at itemviews/qabstractitemview.cpp:1619
#15 0x00007f0e27da28f5 in QTreeView::viewportEvent (this=0x2a5d980, event=0x7fff6fe13c00) at itemviews/qtreeview.cpp:1256
#16 0x00007f0e26e3f8d7 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x29be570, event=0x7fff6fe13c00) at kernel/qcoreapplication.cpp:847
#17 0x00007f0e278106bc in QApplicationPrivate::notify_helper (this=0x2098d40, receiver=0x29be570, e=0x7fff6fe13c00) at kernel/qapplication.cpp:4392
#18 0x00007f0e278161dd in QApplication::notify (this=0x7fff6fe16a90, receiver=0x29be570, e=0x7fff6fe13c00) at kernel/qapplication.cpp:4277
#19 0x00007f0e2914d536 in KApplication::notify (this=0x7fff6fe16a90, receiver=0x29be570, event=0x7fff6fe13c00) at ../../kdeui/kernel/kapplication.cpp:310
#20 0x00007f0e26e400ac in QCoreApplication::notifyInternal (this=0x7fff6fe16a90, receiver=0x29be570, event=0x7fff6fe13c00) at kernel/qcoreapplication.cpp:732
#21 0x00007f0e2786ca7d in QCoreApplication::sendSpontaneousEvent (this=0x26e2a50, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#22 QWidgetPrivate::drawWidget (this=0x26e2a50, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, backingStore=0x29d8c00)
    at kernel/qwidget.cpp:5420
#23 0x00007f0e2786d718 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=0, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x29d8c00) at kernel/qwidget.cpp:5627
#24 0x00007f0e2786c7da in QWidgetPrivate::drawWidget (this=0x2709b00, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at kernel/qwidget.cpp:5473
#25 0x00007f0e2786d718 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=2, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x29d8c00) at kernel/qwidget.cpp:5627
#26 0x00007f0e2786c7da in QWidgetPrivate::drawWidget (this=0x29f0b00, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at kernel/qwidget.cpp:5473
#27 0x00007f0e2786d718 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=2, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x29d8c00) at kernel/qwidget.cpp:5627
#28 0x00007f0e2786c7da in QWidgetPrivate::drawWidget (this=0x290d3b0, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at kernel/qwidget.cpp:5473
#29 0x00007f0e2786d718 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=3, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x29d8c00) at kernel/qwidget.cpp:5627
#30 0x00007f0e2786c7da in QWidgetPrivate::drawWidget (this=0x299e030, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at kernel/qwidget.cpp:5473
#31 0x00007f0e2786d718 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=3, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x29d8c00) at kernel/qwidget.cpp:5627
#32 0x00007f0e2786c7da in QWidgetPrivate::drawWidget (this=0x298e400, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at kernel/qwidget.cpp:5473
#33 0x00007f0e2786d718 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=5, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x29d8c00) at kernel/qwidget.cpp:5627
#34 0x00007f0e2786c7da in QWidgetPrivate::drawWidget (this=0x292b060, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at kernel/qwidget.cpp:5473
#35 0x00007f0e2786d718 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=82, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x29d8c00) at kernel/qwidget.cpp:5627
#36 0x00007f0e2786c7da in QWidgetPrivate::drawWidget (this=0x20a08e0, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x29d8c00) at kernel/qwidget.cpp:5473
#37 0x00007f0e27a3efb8 in QWidgetBackingStore::sync (this=0x29d8c00) at painting/qbackingstore.cpp:1328
#38 0x00007f0e2785fb90 in QWidgetPrivate::syncBackingStore (this=0x20a08e0) at kernel/qwidget.cpp:1805
#39 0x00007f0e27866735 in QWidget::event (this=0x2551e80, event=0x3537840) at kernel/qwidget.cpp:8480
#40 0x00007f0e27c48b5b in QMainWindow::event (this=0x2551e80, event=0x3537840) at widgets/qmainwindow.cpp:1417
#41 0x00007f0e278106ec in QApplicationPrivate::notify_helper (this=0x2098d40, receiver=0x2551e80, e=0x3537840) at kernel/qapplication.cpp:4396
#42 0x00007f0e278161dd in QApplication::notify (this=0x7fff6fe16a90, receiver=0x2551e80, e=0x3537840) at kernel/qapplication.cpp:4277
#43 0x00007f0e2914d536 in KApplication::notify (this=0x7fff6fe16a90, receiver=0x2551e80, event=0x3537840) at ../../kdeui/kernel/kapplication.cpp:310
#44 0x00007f0e26e400ac in QCoreApplication::notifyInternal (this=0x7fff6fe16a90, receiver=0x2551e80, event=0x3537840) at kernel/qcoreapplication.cpp:732
#45 0x00007f0e26e42fd2 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x1f41a70) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#46 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x1f41a70) at kernel/qcoreapplication.cpp:1373
#47 0x00007f0e26e6c643 in QCoreApplication::sendPostedEvents (s=0x209c3c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#48 postEventSourceDispatch (s=0x209c3c0) at kernel/qeventdispatcher_glib.cpp:277
#49 0x00007f0e202068c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#50 0x00007f0e2020a748 in ?? () from /lib/libglib-2.0.so.0
#51 0x00007f0e2020a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#52 0x00007f0e26e6c183 in QEventDispatcherGlib::processEvents (this=0x1f411c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#53 0x00007f0e278c297e in QGuiEventDispatcherGlib::processEvents (this=0x7fff6fe121a0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#54 0x00007f0e26e3edd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#55 0x00007f0e26e3f1bc in QEventLoop::exec (this=0x7fff6fe16a30, flags=) at kernel/qeventloop.cpp:201
#56 0x00007f0e26e4326b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#57 0x000000000040836a in main (argc=<value optimized out>, argv=0x7fff6fe189f8) at ../../src/main.cpp:237

Possible duplicates by query: bug 228988, bug 228333, bug 224766, bug 222204, bug 192328.

Reported using DrKonqi