Bug 295877

Application: amarok (2.4.3)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-16-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I chose to eject my mp3 player from amarok. Each time amarok crashes while doing the same operation.

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0xb4397720 (LWP 9479))]

Thread 10 (Thread 0xb2ca4b70 (LWP 9483)):
#0  0x00673d0d in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x003c42f4 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x0598c87f in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x0598d637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0598dc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0467bb37 in QEventDispatcherGlib::processEvents (this=0x915e610, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x0464c1dd in QEventLoop::processEvents (this=0xb2ca41f0, flags=...) at kernel/qeventloop.cpp:149
#7  0x0464c421 in QEventLoop::exec (this=0xb2ca41f0, flags=...) at kernel/qeventloop.cpp:201
#8  0x0454f90b in QThread::exec (this=0x913e8b0) at thread/qthread.cpp:498
#9  0x0462ce2d in QInotifyFileSystemWatcherEngine::run (this=0x913e8b0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x045527b3 in QThreadPrivate::start (arg=0x913e8b0) at thread/qthread_unix.cpp:331
#11 0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 9 (Thread 0xb138fb70 (LWP 9485)):
#0  0x01de4d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x045a97d5 in do_gettime (frac=0xb138efb0, sec=0xb138efa8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x0467c4b6 in QTimerInfoList::updateCurrentTime (this=0x933b2b4) at kernel/qeventdispatcher_unix.cpp:339
#4  0x0467c80a in QTimerInfoList::timerWait (this=0x933b2b4, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x0467b053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb138f09c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0598c88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x0598d637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x0598dc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x0467bb37 in QEventDispatcherGlib::processEvents (this=0x93322f0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#10 0x0464c1dd in QEventLoop::processEvents (this=0xb138f220, flags=...) at kernel/qeventloop.cpp:149
#11 0x0464c421 in QEventLoop::exec (this=0xb138f220, flags=...) at kernel/qeventloop.cpp:201
#12 0x0454f90b in QThread::exec (this=0x93318c0) at thread/qthread.cpp:498
#13 0x0454f9fb in QThread::run (this=0x93318c0) at thread/qthread.cpp:565
#14 0x045527b3 in QThreadPrivate::start (arg=0x93318c0) at thread/qthread_unix.cpp:331
#15 0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 8 (Thread 0xb01feb70 (LWP 9487)):
#0  0x005b6416 in __kernel_vsyscall ()
#1  0x00674a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x003c409c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x04552cc0 in wait (time=4294967295, this=0x9375448) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9375348, mutex=0x93755e8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x0059a406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9375330, th=0x93758e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0059cecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x93756c8, th=0x93758e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0059a03a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9375330, th=0x93758e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0059cfcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x93758e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x93758e0, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x0059cfe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x93758e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x93758e0, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x0059cfe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x93758e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#13 0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x93758e0, previous=0xabcf580) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#14 0x0059bb14 in ThreadWeaver::ThreadRunHelper::run (this=0xb01fe254, parent=0x9375330, th=0x93758e0) at ../../../threadweaver/Weaver/Thread.cpp:87
#15 0x0059bbca in ThreadWeaver::Thread::run (this=0x93758e0) at ../../../threadweaver/Weaver/Thread.cpp:142
#16 0x045527b3 in QThreadPrivate::start (arg=0x93758e0) at thread/qthread_unix.cpp:331
#17 0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 7 (Thread 0xae5a6b70 (LWP 9488)):
#0  0x01de4d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x045a97d5 in do_gettime (frac=0xae5a5f60, sec=0xae5a5f58) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x0467c4b6 in QTimerInfoList::updateCurrentTime (this=0x95a9aec) at kernel/qeventdispatcher_unix.cpp:339
#4  0x0467c80a in QTimerInfoList::timerWait (this=0x95a9aec, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x0467b053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xae5a606c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0467b0ed in timerSourcePrepare (source=0x95a9ab8, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x0598c88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x0598d637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x0598dc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x0467bb37 in QEventDispatcherGlib::processEvents (this=0x95a9938, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x0464c1dd in QEventLoop::processEvents (this=0xae5a61f0, flags=...) at kernel/qeventloop.cpp:149
#12 0x0464c421 in QEventLoop::exec (this=0xae5a61f0, flags=...) at kernel/qeventloop.cpp:201
#13 0x0454f90b in QThread::exec (this=0x9568760) at thread/qthread.cpp:498
#14 0x0462ce2d in QInotifyFileSystemWatcherEngine::run (this=0x9568760) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x045527b3 in QThreadPrivate::start (arg=0x9568760) at thread/qthread_unix.cpp:331
#16 0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 6 (Thread 0xadda5b70 (LWP 9489)):
#0  0x005b6416 in __kernel_vsyscall ()
#1  0x00674a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x003c409c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x04552cc0 in wait (time=4294967295, this=0x9375448) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9375348, mutex=0x93755e8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x0059a406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9375330, th=0x9618680) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0059cecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x93756c8, th=0x9618680) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0059a03a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9375330, th=0x9618680) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0059cfcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x9618680) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x9618680, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x0059cfe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x9618680) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x9618680, previous=0x9d95cc8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x0059bb14 in ThreadWeaver::ThreadRunHelper::run (this=0xadda5254, parent=0x9375330, th=0x9618680) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0x0059bbca in ThreadWeaver::Thread::run (this=0x9618680) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0x045527b3 in QThreadPrivate::start (arg=0x9618680) at thread/qthread_unix.cpp:331
#15 0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 5 (Thread 0xad5a4b70 (LWP 9490)):
#0  0x005b6416 in __kernel_vsyscall ()
#1  0x00674a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x003c409c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x04552cc0 in wait (time=4294967295, this=0x9375448) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9375348, mutex=0x93755e8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x0059a406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9375330, th=0x95e9c40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0059cecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x93756c8, th=0x95e9c40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0059a03a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9375330, th=0x95e9c40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0059cfcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x95e9c40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x95e9c40, previous=0x9564b40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x0059bb14 in ThreadWeaver::ThreadRunHelper::run (this=0xad5a4254, parent=0x9375330, th=0x95e9c40) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x0059bbca in ThreadWeaver::Thread::run (this=0x95e9c40) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x045527b3 in QThreadPrivate::start (arg=0x95e9c40) at thread/qthread_unix.cpp:331
#13 0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 4 (Thread 0xacda3b70 (LWP 9491)):
#0  0x005b6416 in __kernel_vsyscall ()
#1  0x00674a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x003c409c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x04552cc0 in wait (time=4294967295, this=0x9375448) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9375348, mutex=0x93755e8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x0059a406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9375330, th=0x966e538) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0059cecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x93756c8, th=0x966e538) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0059a03a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9375330, th=0x966e538) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0059cfcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x966e538) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x966e538, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x0059cfe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x966e538) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x966e538, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x0059cfe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x93756c8, th=0x966e538) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#13 0x00599f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9375330, th=0x966e538, previous=0x9d9e048) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#14 0x0059bb14 in ThreadWeaver::ThreadRunHelper::run (this=0xacda3254, parent=0x9375330, th=0x966e538) at ../../../threadweaver/Weaver/Thread.cpp:87
#15 0x0059bbca in ThreadWeaver::Thread::run (this=0x966e538) at ../../../threadweaver/Weaver/Thread.cpp:142
#16 0x045527b3 in QThreadPrivate::start (arg=0x966e538) at thread/qthread_unix.cpp:331
#17 0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 3 (Thread 0xac5a2b70 (LWP 9492)):
#0  0x005b6416 in __kernel_vsyscall ()
#1  0x00674a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x003c409c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb6ffe883 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb6ffe99f in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xab472b70 (LWP 9495)):
#0  0x005b6416 in __kernel_vsyscall ()
#1  0x00674a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x003c409c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x019169a9 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0x019169ef in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0x02a46f51 in ?? () from /usr/lib/libGL.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xb4397720 (LWP 9479)):
[KCrash Handler]
#7  0x06278891 in QString (other=..., this=0xbfe68604) at /usr/include/qt4/QtCore/qstring.h:728
#8  udi (this=0x0) at ../../../../../src/core-impl/collections/umscollection/../mediadevicecollection/MediaDeviceCollection.h:131
#9  Meta::UmsHandler::prettyName (this=0x9d4dc90) at ../../../../../src/core-impl/collections/umscollection/handler/UmsHandler.cpp:449
#10 0x062768bb in Collections::UmsCollection::prettyName (this=0x8d5e198) at ../../../../../src/core-impl/collections/umscollection/UmsCollection.cpp:91
#11 0x00d18aab in CollectionTreeItem::data (this=0xbfe686cc, role=0) at ../../src/browsers/CollectionTreeItem.cpp:154
#12 0x00d21779 in CollectionTreeItemModelBase::dataForItem (this=0x9379b38, item=0x93475e0, role=0, level=0) at ../../src/browsers/CollectionTreeItemModelBase.cpp:323
#13 0x00d19e33 in CollectionTreeItemModel::data (this=0x9379b38, index=..., role=0) at ../../src/browsers/CollectionTreeItemModel.cpp:116
#14 0x0343da67 in QSortFilterProxyModel::data (this=0x931a688, index=..., role=0) at itemviews/qsortfilterproxymodel.cpp:1716
#15 0x00d5d7f7 in data (arole=<optimized out>, this=<optimized out>) at /usr/include/qt4/QtCore/qabstractitemmodel.h:398
#16 CollectionTreeItemDelegate::sizeHint (this=0x931e370, option=..., index=...) at ../../src/browsers/collectionbrowser/CollectionTreeItemDelegate.cpp:240
#17 0x033f1087 in QTreeView::indexRowSizeHint (this=0x93790e0, index=...) at itemviews/qtreeview.cpp:2802
#18 0x033f4d87 in itemHeight (item=1, this=0x9364a00) at itemviews/qtreeview.cpp:3232
#19 QTreeViewPrivate::itemHeight (this=0x9364a00, item=1) at itemviews/qtreeview.cpp:3221
#20 0x033f505b in QTreeViewPrivate::updateScrollBars (this=0x9364a00) at itemviews/qtreeview.cpp:3457
#21 0x033f53a8 in QTreeView::updateGeometries (this=0x93790e0) at itemviews/qtreeview.cpp:2686
#22 0x033af164 in QAbstractItemView::doItemsLayout (this=0x93790e0) at itemviews/qabstractitemview.cpp:1148
#23 0x033fcdd8 in QTreeView::doItemsLayout (this=0x93790e0) at itemviews/qtreeview.cpp:2027
#24 0x033f5128 in QTreeViewPrivate::updateScrollBars (this=0x9364a00) at itemviews/qtreeview.cpp:3440
#25 0x033ffee8 in QTreeView::scrollTo (this=0x93790e0, index=..., hint=QAbstractItemView::EnsureVisible) at itemviews/qtreeview.cpp:1088
#26 0x033b0b1f in QAbstractItemView::currentChanged (this=0x93790e0, current=..., previous=...) at itemviews/qabstractitemview.cpp:3413
#27 0x033f22b7 in QTreeView::currentChanged (this=0x93790e0, current=..., previous=...) at itemviews/qtreeview.cpp:3711
#28 0x033b44ad in QAbstractItemView::qt_metacall (this=0x93790e0, _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0xbfe68fa4) at .moc/release-shared/moc_qabstractitemview.cpp:238
#29 0x03400812 in QTreeView::qt_metacall (this=0x93790e0, _c=QMetaObject::InvokeMetaMethod, _id=51, _a=0xbfe68fa4) at .moc/release-shared/moc_qtreeview.cpp:119
#30 0x0123f972 in Amarok::PrettyTreeView::qt_metacall (this=0x93790e0, _c=QMetaObject::InvokeMetaMethod, _id=51, _a=0xbfe68fa4) at ./PrettyTreeView.moc:68
#31 0x00d344a2 in CollectionTreeView::qt_metacall (this=0x93790e0, _c=QMetaObject::InvokeMetaMethod, _id=51, _a=0xbfe68fa4) at ./CollectionTreeView.moc:102
#32 0x04653b7d in metacall (argv=0xbfe68fa4, idx=51, cl=QMetaObject::InvokeMetaMethod, object=0x93790e0) at kernel/qmetaobject.cpp:237
#33 QMetaObject::metacall (object=0x93790e0, cl=QMetaObject::InvokeMetaMethod, idx=51, argv=0xbfe68fa4) at kernel/qmetaobject.cpp:232
#34 0x04662a6a in QMetaObject::activate (sender=0x9319a30, m=0x3770d68, local_signal_index=1, argv=0xbfe68fa4) at kernel/qobject.cpp:3278
#35 0x0340ab4d in QItemSelectionModel::currentChanged (this=0x9319a30, _t1=..., _t2=...) at .moc/release-shared/moc_qitemselectionmodel.cpp:159
#36 0x0340f9e2 in QItemSelectionModelPrivate::_q_rowsAboutToBeRemoved (this=0x93662a0, parent=..., start=1, end=1) at itemviews/qitemselectionmodel.cpp:630
#37 0x03413130 in QItemSelectionModel::qt_metacall (this=0x9319a30, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbfe69300) at .moc/release-shared/moc_qitemselectionmodel.cpp:136
#38 0x04653b7d in metacall (argv=0xbfe69300, idx=15, cl=QMetaObject::InvokeMetaMethod, object=0x9319a30) at kernel/qmetaobject.cpp:237
#39 QMetaObject::metacall (object=0x9319a30, cl=QMetaObject::InvokeMetaMethod, idx=15, argv=0xbfe69300) at kernel/qmetaobject.cpp:232
#40 0x04662a6a in QMetaObject::activate (sender=0x931a688, m=0x4784408, local_signal_index=6, argv=0xbfe69300) at kernel/qobject.cpp:3278
#41 0x046b06f5 in QAbstractItemModel::rowsAboutToBeRemoved (this=0x931a688, _t1=..., _t2=1, _t3=1) at .moc/release-shared/moc_qabstractitemmodel.cpp:188
#42 0x0464717c in QAbstractItemModel::beginRemoveRows (this=0x931a688, parent=..., first=1, last=1) at kernel/qabstractitemmodel.cpp:2449
#43 0x0343fe6c in QSortFilterProxyModelPrivate::remove_proxy_interval (this=0x95a6fb0, source_to_proxy=..., proxy_to_source=..., proxy_start=1, proxy_end=1, proxy_parent=..., orient=Qt::Vertical, emit_signal=true) at itemviews/qsortfilterproxymodel.cpp:555
#44 0x03444ea8 in QSortFilterProxyModelPrivate::remove_source_items (this=0x95a6fb0, source_to_proxy=..., proxy_to_source=..., source_items=..., source_parent=..., orient=Qt::Vertical, emit_signal=true) at itemviews/qsortfilterproxymodel.cpp:537
#45 0x03446aca in QSortFilterProxyModelPrivate::source_items_about_to_be_removed (this=0x95a6fb0, source_parent=..., start=1, end=1, orient=Qt::Vertical) at itemviews/qsortfilterproxymodel.cpp:838
#46 0x03446bda in QSortFilterProxyModelPrivate::_q_sourceRowsAboutToBeRemoved (this=0x95a6fb0, source_parent=..., start=1, end=1) at itemviews/qsortfilterproxymodel.cpp:1288
#47 0x03446e64 in QSortFilterProxyModel::qt_metacall (this=0x931a688, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbfe695d0) at .moc/release-shared/moc_qsortfilterproxymodel.cpp:138
#48 0x04653b7d in metacall (argv=0xbfe695d0, idx=38, cl=QMetaObject::InvokeMetaMethod, object=0x931a688) at kernel/qmetaobject.cpp:237
#49 QMetaObject::metacall (object=0x931a688, cl=QMetaObject::InvokeMetaMethod, idx=38, argv=0xbfe695d0) at kernel/qmetaobject.cpp:232
#50 0x04662a6a in QMetaObject::activate (sender=0x9379b38, m=0x4784408, local_signal_index=6, argv=0xbfe695d0) at kernel/qobject.cpp:3278
#51 0x046b06f5 in QAbstractItemModel::rowsAboutToBeRemoved (this=0x9379b38, _t1=..., _t2=1, _t3=1) at .moc/release-shared/moc_qabstractitemmodel.cpp:188
#52 0x0464717c in QAbstractItemModel::beginRemoveRows (this=0x9379b38, parent=..., first=1, last=1) at kernel/qabstractitemmodel.cpp:2449
#53 0x00d1c7d3 in CollectionTreeItemModel::collectionRemoved (this=0x9379b38, collectionId=...) at ../../src/browsers/CollectionTreeItemModel.cpp:236
#54 0x00d1a28e in CollectionTreeItemModel::qt_metacall (this=0x9379b38, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbfe697e8) at ./CollectionTreeItemModel.moc:79
#55 0x04653b7d in metacall (argv=0xbfe697e8, idx=43, cl=QMetaObject::InvokeMetaMethod, object=0x9379b38) at kernel/qmetaobject.cpp:237
#56 QMetaObject::metacall (object=0x9379b38, cl=QMetaObject::InvokeMetaMethod, idx=43, argv=0xbfe697e8) at kernel/qmetaobject.cpp:232
#57 0x04662a6a in QMetaObject::activate (sender=0x90cefc8, m=0x142f898, local_signal_index=2, argv=0xbfe697e8) at kernel/qobject.cpp:3278
#58 0x00fbb6e5 in CollectionManager::collectionRemoved (this=0x90cefc8, _t1=...) at ./CollectionManager.moc:157
#59 0x00fbdca7 in CollectionManager::slotRemoveCollection (this=0x90cefc8) at ../../src/core-impl/collections/support/CollectionManager.cpp:367
#60 0x00fbff00 in CollectionManager::qt_metacall (this=0x90cefc8, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0x9eaf7d0) at ./CollectionManager.moc:129
#61 0x04653b7d in metacall (argv=0x9eaf7d0, idx=16, cl=QMetaObject::InvokeMetaMethod, object=0x90cefc8) at kernel/qmetaobject.cpp:237
#62 QMetaObject::metacall (object=0x90cefc8, cl=QMetaObject::InvokeMetaMethod, idx=16, argv=0x9eaf7d0) at kernel/qmetaobject.cpp:232
#63 0x0465e685 in QMetaCallEvent::placeMetaCall (this=0x9d9aff8, object=0x90cefc8) at kernel/qobject.cpp:535
#64 0x04665b52 in QObject::event (this=0x90cefc8, e=0x9d9aff8) at kernel/qobject.cpp:1217
#65 0x02e1ad84 in notify_helper (e=0x9d9aff8, receiver=0x90cefc8, this=0x8c04720) at kernel/qapplication.cpp:4486
#66 QApplicationPrivate::notify_helper (this=0x8c04720, receiver=0x90cefc8, e=0x9d9aff8) at kernel/qapplication.cpp:4458
#67 0x02e20133 in QApplication::notify (this=0x9d9aff8, receiver=0x90cefc8, e=0x9d9aff8) at kernel/qapplication.cpp:3886
#68 0x00997971 in KApplication::notify (this=0xbfe69fc4, receiver=0x90cefc8, event=0x9d9aff8) at ../../kdeui/kernel/kapplication.cpp:311
#69 0x0464d19e in QCoreApplication::notifyInternal (this=0xbfe69fc4, receiver=0x90cefc8, event=0x9d9aff8) at kernel/qcoreapplication.cpp:787
#70 0x04650f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#71 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8a9c2e0) at kernel/qcoreapplication.cpp:1428
#72 0x046510ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#73 0x0467b6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#74 postEventSourceDispatch (s=0x8c0e1d0) at kernel/qeventdispatcher_glib.cpp:277
#75 0x0598d25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#76 0x0598d990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#77 0x0598dc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#78 0x0467bada in QEventDispatcherGlib::processEvents (this=0x8a9d200, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#79 0x02ed2e7a in QGuiEventDispatcherGlib::processEvents (this=0x8a9d200, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#80 0x0464c1dd in QEventLoop::processEvents (this=0xbfe69f34, flags=...) at kernel/qeventloop.cpp:149
#81 0x0464c421 in QEventLoop::exec (this=0xbfe69f34, flags=...) at kernel/qeventloop.cpp:201
#82 0x0465119d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#83 0x02e18924 in QApplication::exec () at kernel/qapplication.cpp:3760
#84 0x0804ffc2 in main (argc=) at ../../src/main.cpp:289

Possible duplicates by query: bug 293797, bug 281817, bug 281014, bug 275918.

Reported using DrKonqi