Application: digikam (2.1.1)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: 
Under Ubuntu Oeniric Ocelot, DigiKam crashes when pushing the preferences button

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
[Current thread is 1 (Thread 0xb54a08c0 (LWP 6105))]

Thread 5 (Thread 0xb46ffb70 (LWP 6107)):
#0  0x007b2d8a in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x02118f14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x04538eda in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x0453a56d in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0453af9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x09172cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x045615f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x007b0d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x0210b0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xb32e8b70 (LWP 6108)):
#0  0x004e8416 in __kernel_vsyscall ()
#1  0x007b4a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x02118cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x025eccc0 in wait (time=4294967295, this=0xa6cdbd8) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xa6cdb04, mutex=0xa6cdb00, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x081faf45 in Digikam::ScanController::run (this=0xa6ca4f0) at /build/buildd/digikam-2.1.1/core/digikam/database/scancontroller.cpp:647
#6  0x025ec7b3 in QThreadPrivate::start (arg=0xa6ca4f0) at thread/qthread_unix.cpp:331
#7  0x007b0d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x0210b0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xb2ae7b70 (LWP 6109)):
#0  0x00986d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x026437d5 in do_gettime (frac=0xb2ae6e70, sec=0xb2ae6e68) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x027164b6 in QTimerInfoList::updateCurrentTime (this=0xa6d38cc) at kernel/qeventdispatcher_unix.cpp:339
#4  0x0271680a in QTimerInfoList::timerWait (this=0xa6d38cc, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x02715053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb2ae6f7c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x027150ed in timerSourcePrepare (source=0xa6d3898, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x0453988c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x0453a637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x0453ac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x02715b37 in QEventDispatcherGlib::processEvents (this=0xa6d2cd8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x026e61dd in QEventLoop::processEvents (this=0xb2ae7100, flags=...) at kernel/qeventloop.cpp:149
#12 0x026e6421 in QEventLoop::exec (this=0xb2ae7100, flags=...) at kernel/qeventloop.cpp:201
#13 0x025e990b in QThread::exec (this=0xa6cfc00) at thread/qthread.cpp:498
#14 0x026c6e2d in QInotifyFileSystemWatcherEngine::run (this=0xa6cfc00) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x025ec7b3 in QThreadPrivate::start (arg=0xa6cfc00) at thread/qthread_unix.cpp:331
#16 0x007b0d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x0210b0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xb22e6b70 (LWP 6112)):
#0  0x004e8416 in __kernel_vsyscall ()
#1  0x007b4a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x02118cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x025eccc0 in wait (time=4294967295, this=0xaa03208) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xaa02ed8, mutex=0xaa02ed4, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x06f6df54 in Digikam::ParkingThread::run (this=0xaa02ec8) at /build/buildd/digikam-2.1.1/core/libs/threads/threadmanager.cpp:119
#6  0x025ec7b3 in QThreadPrivate::start (arg=0xaa02ec8) at thread/qthread_unix.cpp:331
#7  0x007b0d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x0210b0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb54a08c0 (LWP 6105)):
[KCrash Handler]
#7  0x04d5c761 in QAccessibleItemRow::text (this=0xb2452b8, t=QAccessible::Accelerator, child=-1078948384) at complexwidgets.cpp:331
#8  0x04cfde31 in QSpiAdaptor::getCacheItem() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#9  0x04cf1ecc in QSpiAccessibleBridge::notifyAboutCreation(QSpiAdaptor*) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#10 0x04cf157a in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#11 0x04cf75bb in QSpiAdaptor::getChild(int) const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#12 0x04cfd426 in QSpiAdaptor::GetChildren() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#13 0x04cfdc9e in QSpiAdaptor::getCacheItem() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#14 0x04cf1ecc in QSpiAccessibleBridge::notifyAboutCreation(QSpiAdaptor*) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#15 0x04cf157a in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#16 0x04cf75bb in QSpiAdaptor::getChild(int) const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#17 0x04cfd426 in QSpiAdaptor::GetChildren() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#18 0x04cfdc9e in QSpiAdaptor::getCacheItem() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#19 0x04cf1ecc in QSpiAccessibleBridge::notifyAboutCreation(QSpiAdaptor*) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#20 0x04cf157a in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#21 0x04cf75bb in QSpiAdaptor::getChild(int) const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#22 0x04cfd426 in QSpiAdaptor::GetChildren() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#23 0x04cfdc9e in QSpiAdaptor::getCacheItem() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#24 0x04cf1ecc in QSpiAccessibleBridge::notifyAboutCreation(QSpiAdaptor*) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#25 0x04cf157a in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#26 0x04cf2554 in QSpiAccessibleBridge::objectToAccessible(QObject*) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#27 0x04d0efa4 in QSpiAccessible::getParentReference() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#28 0x04cfdba8 in QSpiAdaptor::getCacheItem() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#29 0x04cf1ecc in QSpiAccessibleBridge::notifyAboutCreation(QSpiAdaptor*) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#30 0x04cf157a in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#31 0x04cf2b7d in QSpiAccessibleBridge::notifyAccessibilityUpdate(int, QAccessibleInterface*, int) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#32 0x01c5a39e in QAccessible::updateAccessibility (o=0xbb3de38, who=0, reason=QAccessible::NameChanged) at accessible/qaccessible_unix.cpp:107
#33 0x01adeb07 in QAbstractButton::setText (this=0xbb3de38, text=...) at widgets/qabstractbutton.cpp:647
#34 0x080f063e in Digikam::SetupCollectionDelegate::sizeHint (this=0xc0571c8, option=..., index=...) at /build/buildd/digikam-2.1.1/core/utilities/setup/setupcollectionview.cpp:185
#35 0x01ca1037 in QTreeView::indexRowSizeHint (this=0xc0458f0, index=...) at itemviews/qtreeview.cpp:2802
#36 0x01ca4d37 in itemHeight (item=2, this=0xb240ce8) at itemviews/qtreeview.cpp:3232
#37 QTreeViewPrivate::itemHeight (this=0xb240ce8, item=2) at itemviews/qtreeview.cpp:3221
#38 0x01ca500b in QTreeViewPrivate::updateScrollBars (this=0xb240ce8) at itemviews/qtreeview.cpp:3457
#39 0x01ca5358 in QTreeView::updateGeometries (this=0xc0458f0) at itemviews/qtreeview.cpp:2686
#40 0x01c5f114 in QAbstractItemView::doItemsLayout (this=0xc0458f0) at itemviews/qabstractitemview.cpp:1148
#41 0x01cacd88 in QTreeView::doItemsLayout (this=0xc0458f0) at itemviews/qtreeview.cpp:2027
#42 0x01ca9a7b in executePostedLayout (this=0xb240ce8) at ../../include/QtGui/private/../../../src/gui/itemviews/qabstractitemview_p.h:212
#43 executePostedLayout (this=0xb240ce8) at itemviews/qtreeview.cpp:635
#44 QTreeView::setFirstColumnSpanned (this=0xc0458f0, row=0, parent=..., span=true) at itemviews/qtreeview.cpp:655
#45 0x080ee6eb in Digikam::SetupCollectionTreeView::modelLoadedCollections (this=0xc0458f0) at /build/buildd/digikam-2.1.1/core/utilities/setup/setupcollectionview.cpp:327
#46 0x080ee8e7 in Digikam::SetupCollectionTreeView::qt_metacall (this=0xc0458f0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbfb0a324) at /build/buildd/digikam-2.1.1/obj-i686-linux-gnu/core/digikam/moc_setupcollectionview.cpp:153
#47 0x026edb7d in metacall (argv=0xbfb0a324, idx=88, cl=QMetaObject::InvokeMetaMethod, object=0xc0458f0) at kernel/qmetaobject.cpp:237
#48 QMetaObject::metacall (object=0xc0458f0, cl=QMetaObject::InvokeMetaMethod, idx=88, argv=0xbfb0a324) at kernel/qmetaobject.cpp:232
#49 0x026fca6a in QMetaObject::activate (sender=0xc04d580, m=0x83f4494, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3278
#50 0x080ee207 in Digikam::SetupCollectionModel::collectionsLoaded (this=0xc04d580) at /build/buildd/digikam-2.1.1/obj-i686-linux-gnu/core/digikam/moc_setupcollectionview.cpp:98
#51 0x080f0fed in Digikam::SetupCollectionModel::loadCollections (this=0xc04d580) at /build/buildd/digikam-2.1.1/core/utilities/setup/setupcollectionview.cpp:405
#52 0x080ed38b in Digikam::SetupCollections::SetupCollections (this=0xbcbd348, dialog=0x4, parent=0x0) at /build/buildd/digikam-2.1.1/core/utilities/setup/setupcollections.cpp:134
#53 0x080f9800 in Digikam::Setup::Setup (this=0xbd48950, parent=0x0) at /build/buildd/digikam-2.1.1/core/utilities/setup/setup.cpp:191
#54 0x080fc6a3 in Digikam::Setup::exec (parent=0xa6d8088, page=Digikam::Setup::LastPageUsed) at /build/buildd/digikam-2.1.1/core/utilities/setup/setup.cpp:410
#55 0x081a0717 in Digikam::DigikamApp::setup (this=0xa6d8088) at /build/buildd/digikam-2.1.1/core/digikam/main/digikamapp.cpp:2474
#56 0x081afdcd in Digikam::DigikamApp::qt_metacall (this=0xa6d8088, _c=QMetaObject::InvokeMetaMethod, _id=37, _a=0xbfb0a828) at /build/buildd/digikam-2.1.1/obj-i686-linux-gnu/core/digikam/digikamapp.moc:254
#57 0x026edb7d in metacall (argv=0xbfb0a828, idx=83, cl=QMetaObject::InvokeMetaMethod, object=0xa6d8088) at kernel/qmetaobject.cpp:237
#58 QMetaObject::metacall (object=0xa6d8088, cl=QMetaObject::InvokeMetaMethod, idx=83, argv=0xbfb0a828) at kernel/qmetaobject.cpp:232
#59 0x026fca6a in QMetaObject::activate (sender=0xb2304d8, m=0x8528f50, local_signal_index=1, argv=0xbfb0a828) at kernel/qobject.cpp:3278
#60 0x016c383d in QAction::triggered (this=0xb2304d8, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#61 0x016c3adb in QAction::activate (this=0xb2304d8, event=QAction::Trigger) at kernel/qaction.cpp:1257
#62 0x016c4fa8 in trigger (this=0xb2304d8) at kernel/qaction.h:218
#63 QAction::qt_metacall (this=0xb2304d8, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbf7c720) at .moc/release-shared/moc_qaction.cpp:174
#64 0x0172c7f2 in QWidgetAction::qt_metacall (this=0xb2304d8, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbf7c720) at .moc/release-shared/moc_qwidgetaction.cpp:67
#65 0x0899ae22 in KAction::qt_metacall (this=0xb2304d8, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbf7c720) at ./kaction.moc:95
#66 0x026edb7d in metacall (argv=0xbf7c720, idx=12, cl=QMetaObject::InvokeMetaMethod, object=0xb2304d8) at kernel/qmetaobject.cpp:237
#67 QMetaObject::metacall (object=0xb2304d8, cl=QMetaObject::InvokeMetaMethod, idx=12, argv=0xbf7c720) at kernel/qmetaobject.cpp:232
#68 0x026f8685 in QMetaCallEvent::placeMetaCall (this=0xbe296c0, object=0xb2304d8) at kernel/qobject.cpp:535
#69 0x026ffb52 in QObject::event (this=0xb2304d8, e=0xbe296c0) at kernel/qobject.cpp:1217
#70 0x016c3bb1 in event (e=<optimized out>, this=<optimized out>) at kernel/qaction.cpp:1187
#71 QAction::event (this=0x4, e=0x0) at kernel/qaction.cpp:1172
#72 0x0899920f in KAction::event (this=0xb2304d8, event=0xbe296c0) at ../../kdeui/actions/kaction.cpp:131
#73 0x016cad54 in notify_helper (e=0xbe296c0, receiver=0xb2304d8, this=0xa4b6f38) at kernel/qapplication.cpp:4486
#74 QApplicationPrivate::notify_helper (this=0xa4b6f38, receiver=0xb2304d8, e=0xbe296c0) at kernel/qapplication.cpp:4458
#75 0x016d0103 in QApplication::notify (this=0xbe296c0, receiver=0xb2304d8, e=0xbe296c0) at kernel/qapplication.cpp:3886
#76 0x08a9b681 in KApplication::notify (this=0xbfb0b1b0, receiver=0xb2304d8, event=0xbe296c0) at ../../kdeui/kernel/kapplication.cpp:311
#77 0x026e719e in QCoreApplication::notifyInternal (this=0xbfb0b1b0, receiver=0xb2304d8, event=0xbe296c0) at kernel/qcoreapplication.cpp:787
#78 0x026eaf93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#79 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xa475ba0) at kernel/qcoreapplication.cpp:1428
#80 0x026eb0ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#81 0x027156a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#82 postEventSourceDispatch (s=0xa4b64d0) at kernel/qeventdispatcher_glib.cpp:277
#83 0x0453a25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#84 0x0453a990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#85 0x0453ac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#86 0x02715ada in QEventDispatcherGlib::processEvents (this=0xa4768c8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#87 0x01782e3a in QGuiEventDispatcherGlib::processEvents (this=0xa4768c8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#88 0x026e61dd in QEventLoop::processEvents (this=0xbfb0b094, flags=...) at kernel/qeventloop.cpp:149
#89 0x026e6421 in QEventLoop::exec (this=0xbfb0b094, flags=...) at kernel/qeventloop.cpp:201
#90 0x026eb19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#91 0x016c88f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#92 0x080b4b64 in main (argc=) at /build/buildd/digikam-2.1.1/core/digikam/main/main.cpp:232

Reported using DrKonqi