Application: amarok (2.5.0)
KDE Platform Version: 4.7.97 (4.8 RC2 (4.7.97)
Qt Version: 4.8.0
Operating System: Linux 3.2.0-9-generic x86_64
Distribution: Ubuntu precise (development branch)

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

A mp3 song was playing. I clicked on the Amarok symbol of the icon-only task manager (not sure if that caused the problem) to switch to Amarok when the crash occured.
I was unable to reproduce the crash.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd2383da7a0 (LWP 4865))]

Thread 9 (Thread 0x7fd1e57e3700 (LWP 4882)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd21bb44d54 in ?? () from /usr/lib/libvlccore.so.4
#2  0x00007fd2314beefc in start_thread (arg=0x7fd1e57e3700) at pthread_create.c:304
#3  0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fd1db643700 (LWP 4888)):
#0  0x00007fd2314c10e9 in __pthread_mutex_lock (mutex=0x19b4870) at pthread_mutex_lock.c:92
#1  0x00007fd22f9ded61 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd22f9a3269 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd22f9a3a5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd22f9a3c64 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd23568d9a6 in QEventDispatcherGlib::processEvents (this=0x194ba80, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fd23565d202 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fd23565d457 in QEventLoop::exec (this=0x7fd1db642db0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fd23555cf17 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fd23563cf9f in QInotifyFileSystemWatcherEngine::run (this=0x199bd00) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fd23555ff3b in QThreadPrivate::start (arg=0x199bd00) at thread/qthread_unix.cpp:298
#11 0x00007fd2314beefc in start_thread (arg=0x7fd1db643700) at pthread_create.c:304
#12 0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fd1d8c8a700 (LWP 4889)):
#0  0x00007fd2314c21fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x1f9f8e0) at pthread_mutex_unlock.c:290
#2  0x00007fd22f9ded91 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd22f9a3253 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd22f9a3a5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd22f9a3c64 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fd23568d9a6 in QEventDispatcherGlib::processEvents (this=0x20061a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007fd23565d202 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007fd23565d457 in QEventLoop::exec (this=0x7fd1d8c89db0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007fd23555cf17 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007fd23563cf9f in QInotifyFileSystemWatcherEngine::run (this=0x1551870) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007fd23555ff3b in QThreadPrivate::start (arg=0x1551870) at thread/qthread_unix.cpp:298
#12 0x00007fd2314beefc in start_thread (arg=0x7fd1d8c8a700) at pthread_create.c:304
#13 0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fd1d8061700 (LWP 4890)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd23556044b in wait (time=18446744073709551615, this=0x20c1160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x204b830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fd232a4c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x204b540, th=0x204bd20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd232a4ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x204bd20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd232a4ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x204bd20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fd232a4ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x204bd20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007fd232a4dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd1d8060e00, parent=0x204b540, th=0x204bd20) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007fd232a4dd5b in ThreadWeaver::Thread::run (this=0x204bd20) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007fd23555ff3b in QThreadPrivate::start (arg=0x204bd20) at thread/qthread_unix.cpp:298
#10 0x00007fd2314beefc in start_thread (arg=0x7fd1d8061700) at pthread_create.c:304
#11 0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fd1d7860700 (LWP 4891)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd23556044b in wait (time=18446744073709551615, this=0x20c1160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x204b830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fd232a4c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x204b540, th=0x2049150) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd232a4ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x2049150) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd232a4ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x2049150) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fd232a4ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x2049150) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007fd232a4dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd1d785fe00, parent=0x204b540, th=0x2049150) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007fd232a4dd5b in ThreadWeaver::Thread::run (this=0x2049150) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007fd23555ff3b in QThreadPrivate::start (arg=0x2049150) at thread/qthread_unix.cpp:298
#10 0x00007fd2314beefc in start_thread (arg=0x7fd1d7860700) at pthread_create.c:304
#11 0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fd1d705f700 (LWP 4892)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd23556044b in wait (time=18446744073709551615, this=0x20c1160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x204b830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fd232a4c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x204b540, th=0x7fd1e00e4f30) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd232a4ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x7fd1e00e4f30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd232a4dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd1d705ee00, parent=0x204b540, th=0x7fd1e00e4f30) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fd232a4dd5b in ThreadWeaver::Thread::run (this=0x7fd1e00e4f30) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fd23555ff3b in QThreadPrivate::start (arg=0x7fd1e00e4f30) at thread/qthread_unix.cpp:298
#8  0x00007fd2314beefc in start_thread (arg=0x7fd1d705f700) at pthread_create.c:304
#9  0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fd1d685e700 (LWP 4893)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd23556044b in wait (time=18446744073709551615, this=0x20c1160) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x204b830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fd232a4c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x204b540, th=0x7fd1e00e2560) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd232a4ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x7fd1e00e2560) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd232a4ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20c1900, th=0x7fd1e00e2560) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fd232a4dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd1d685de00, parent=0x204b540, th=0x7fd1e00e2560) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fd232a4dd5b in ThreadWeaver::Thread::run (this=0x7fd1e00e2560) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fd23555ff3b in QThreadPrivate::start (arg=0x7fd1e00e2560) at thread/qthread_unix.cpp:298
#9  0x00007fd2314beefc in start_thread (arg=0x7fd1d685e700) at pthread_create.c:304
#10 0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd1d5438700 (LWP 4904)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd231a991f2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fd231a99229 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fd2314beefc in start_thread (arg=0x7fd1d5438700) at pthread_create.c:304
#4  0x00007fd234d1092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd2383da7a0 (LWP 4865)):
[KCrash Handler]
#6  0x00007fd1db65a3ec in QMap (other=..., this=0x7ffff081b8d0) at /usr/include/qt4/QtCore/qmap.h:185
#7  trackMap (this=0x0) at ../../../../../src/core-impl/collections/support/MemoryCollection.h:43
#8  UmsCollection::createCapabilityInterface (this=0x7fd1e00e6460, type=Capabilities::Capability::Actions) at ../../../../../src/core-impl/collections/umscollection/UmsCollection.cpp:416
#9  0x00007fd23703866a in create<Capabilities::ActionsCapability> (this=<optimized out>) at ../../src/core/collections/Collection.h:99
#10 CollectionTreeItem::decoratorActions (this=<optimized out>) at ../../src/browsers/CollectionTreeItem.cpp:197
#11 0x00007fd237038aa8 in CollectionTreeItem::data (this=0x2188a70, role=38) at ../../src/browsers/CollectionTreeItem.cpp:183
#12 0x00007fd237040d74 in CollectionTreeItemModelBase::dataForItem (this=0x2187310, item=0x2188a70, role=38, level=<optimized out>) at ../../src/browsers/CollectionTreeItemModelBase.cpp:323
#13 0x00007fd237039cac in CollectionTreeItemModel::data (this=<optimized out>, index=<optimized out>, role=<optimized out>) at ../../src/browsers/CollectionTreeItemModel.cpp:116
#14 0x00007fd2365fd6bc in QSortFilterProxyModel::data (this=<optimized out>, index=..., role=38) at itemviews/qsortfilterproxymodel.cpp:1718
#15 0x00007fd237079056 in data (arole=38, this=0x7ffff081c330) at /usr/include/qt4/QtCore/qabstractitemmodel.h:398
#16 CollectionTreeItemDelegate::paint (this=0x2186a40, painter=0x7ffff081c790, option=..., index=...) at ../../src/browsers/collectionbrowser/CollectionTreeItemDelegate.cpp:80
#17 0x00007fd2365b8e0d in QTreeView::drawRow (this=0x21788b0, painter=0x7ffff081c790, option=..., index=...) at itemviews/qtreeview.cpp:1716
#18 0x00007fd23750e8a0 in Amarok::PrettyTreeView::drawRow (this=<optimized out>, painter=0x7ffff081c790, option=..., index=<optimized out>) at ../../src/widgets/PrettyTreeView.cpp:45
#19 0x00007fd2365bbf08 in QTreeView::drawTree (this=0x21788b0, painter=0x7ffff081c790, region=<optimized out>) at itemviews/qtreeview.cpp:1467
#20 0x00007fd2365bc880 in QTreeView::paintEvent (this=0x21788b0, event=0x7ffff081d440) at itemviews/qtreeview.cpp:1275
#21 0x00007fd2360a1e46 in QWidget::event (this=0x21788b0, event=0x7ffff081d440) at kernel/qwidget.cpp:8507
#22 0x00007fd2364622a6 in QFrame::event (this=0x21788b0, e=0x7ffff081d440) at widgets/qframe.cpp:557
#23 0x00007fd23657669b in QAbstractItemView::viewportEvent (this=0x21788b0, event=0x7ffff081d440) at itemviews/qabstractitemview.cpp:1644
#24 0x00007fd23707a836 in CollectionBrowserTreeView::viewportEvent (this=0x21788b0, event=0x7ffff081d440) at ../../src/browsers/collectionbrowser/CollectionBrowserTreeView.cpp:112
#25 0x00007fd23565e5a8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2179760, event=0x7ffff081d440) at kernel/qcoreapplication.cpp:986
#26 0x00007fd2360515af in notify_helper (e=0x7ffff081d440, receiver=0x2179760, this=0x13d4250) at kernel/qapplication.cpp:4551
#27 QApplicationPrivate::notify_helper (this=0x13d4250, receiver=0x2179760, e=0x7ffff081d440) at kernel/qapplication.cpp:4527
#28 0x00007fd236056463 in QApplication::notify (this=0x7ffff0821640, receiver=0x2179760, e=0x7ffff081d440) at kernel/qapplication.cpp:4416
#29 0x00007fd237de4ad6 in KApplication::notify (this=0x7ffff0821640, receiver=0x2179760, event=0x7ffff081d440) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007fd23565e41c in QCoreApplication::notifyInternal (this=0x7ffff0821640, receiver=0x2179760, event=0x7ffff081d440) at kernel/qcoreapplication.cpp:876
#31 0x00007fd23609dae6 in sendSpontaneousEvent (event=0x7ffff081d440, receiver=0x2179760) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#32 QWidgetPrivate::drawWidget (this=0x2179790, pdev=0x254a5a0, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5584
#33 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x2178950, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#34 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x2178950, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#35 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x1954fa0, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#36 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x1954fa0, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#37 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x20d4230, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#38 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x20d4230, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#39 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x1f497f0, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#40 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x1f497f0, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#41 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x1f49190, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#42 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x1f49190, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#43 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x1f434c0, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#44 0x00007fd23609e4e7 in QWidgetPrivate::paintSiblingsRecursive (this=0x1f434c0, pdev=0x254a5a0, siblings=..., index=3, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5780
#45 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x1f434c0, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#46 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x1e05770, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#47 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x1e05770, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#48 0x00007fd23609e75f in QWidgetPrivate::paintSiblingsRecursive (this=0x13c29c0, pdev=0x254a5a0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5793
#49 0x00007fd23609e4e7 in QWidgetPrivate::paintSiblingsRecursive (this=0x13c29c0, pdev=0x254a5a0, siblings=..., index=62, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5780
#50 0x00007fd23609e4e7 in QWidgetPrivate::paintSiblingsRecursive (this=0x13c29c0, pdev=0x254a5a0, siblings=..., index=63, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5780
#51 0x00007fd23609e4e7 in QWidgetPrivate::paintSiblingsRecursive (this=0x13c29c0, pdev=0x254a5a0, siblings=..., index=64, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5780
#52 0x00007fd23609d81c in QWidgetPrivate::drawWidget (this=0x13c29c0, pdev=0x254a5a0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1a30400) at kernel/qwidget.cpp:5637
#53 0x00007fd23626ebe8 in QWidgetBackingStore::sync (this=0x1a30400) at painting/qbackingstore.cpp:1373
#54 0x00007fd236094810 in QWidgetPrivate::syncBackingStore (this=0x13c29c0) at kernel/qwidget.cpp:1890
#55 0x00007fd2360a235c in QWidget::event (this=0x13c28d0, event=0x406b030) at kernel/qwidget.cpp:8654
#56 0x00007fd23647bc1b in QMainWindow::event (this=0x13c28d0, event=0x406b030) at widgets/qmainwindow.cpp:1478
#57 0x00007fd2360515e4 in notify_helper (e=0x406b030, receiver=0x13c28d0, this=0x13d4250) at kernel/qapplication.cpp:4555
#58 QApplicationPrivate::notify_helper (this=0x13d4250, receiver=0x13c28d0, e=0x406b030) at kernel/qapplication.cpp:4527
#59 0x00007fd236056463 in QApplication::notify (this=0x7ffff0821640, receiver=0x13c28d0, e=0x406b030) at kernel/qapplication.cpp:4416
#60 0x00007fd237de4ad6 in KApplication::notify (this=0x7ffff0821640, receiver=0x13c28d0, event=0x406b030) at ../../kdeui/kernel/kapplication.cpp:311
#61 0x00007fd23565e41c in QCoreApplication::notifyInternal (this=0x7ffff0821640, receiver=0x13c28d0, event=0x406b030) at kernel/qcoreapplication.cpp:876
#62 0x00007fd2356621ea in sendEvent (event=0x406b030, receiver=0x13c28d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#63 QCoreApplicationPrivate::sendPostedEvents (receiver=0x13c28d0, event_type=77, data=0x122b1f0) at kernel/qcoreapplication.cpp:1500
#64 0x00007fd23666743a in dispatchPendingUpdateRequests (this=0x1ffcf40) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:200
#65 QGraphicsScenePrivate::_q_processDirtyItems (this=0x1f80440) at graphicsview/qgraphicsscene.cpp:515
#66 0x00007fd236667591 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at .moc/release-shared/moc_qgraphicsscene.cpp:107
#67 QGraphicsScene::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/release-shared/moc_qgraphicsscene.cpp:86
#68 0x00007fd2356779c6 in QObject::event (this=0x1f7f0d0, e=<optimized out>) at kernel/qobject.cpp:1195
#69 0x00007fd23666e109 in QGraphicsScene::event (this=0x1f7f0d0, event=0x2b75b50) at graphicsview/qgraphicsscene.cpp:3561
#70 0x00007fd2360515e4 in notify_helper (e=0x2b75b50, receiver=0x1f7f0d0, this=0x13d4250) at kernel/qapplication.cpp:4555
#71 QApplicationPrivate::notify_helper (this=0x13d4250, receiver=0x1f7f0d0, e=0x2b75b50) at kernel/qapplication.cpp:4527
#72 0x00007fd236056463 in QApplication::notify (this=0x7ffff0821640, receiver=0x1f7f0d0, e=0x2b75b50) at kernel/qapplication.cpp:4416
#73 0x00007fd237de4ad6 in KApplication::notify (this=0x7ffff0821640, receiver=0x1f7f0d0, event=0x2b75b50) at ../../kdeui/kernel/kapplication.cpp:311
#74 0x00007fd23565e41c in QCoreApplication::notifyInternal (this=0x7ffff0821640, receiver=0x1f7f0d0, event=0x2b75b50) at kernel/qcoreapplication.cpp:876
#75 0x00007fd2356621ea in sendEvent (event=0x2b75b50, receiver=0x1f7f0d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#76 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x122b1f0) at kernel/qcoreapplication.cpp:1500
#77 0x00007fd23568d513 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#78 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#79 0x00007fd22f9a37da in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#80 0x00007fd22f9a3ba0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#81 0x00007fd22f9a3c64 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#82 0x00007fd23568d93f in QEventDispatcherGlib::processEvents (this=0x122cad0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#83 0x00007fd2360f91fe in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#84 0x00007fd23565d202 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#85 0x00007fd23565d457 in QEventLoop::exec (this=0x7ffff08215d0, flags=...) at kernel/qeventloop.cpp:204
#86 0x00007fd2356624e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#87 0x0000000000408e2e in main (argc=1, argv=0x7ffff0823ac8) at ../../src/main.cpp:303

Possible duplicates by query: bug 290858, bug 289751.

Reported using DrKonqi