Version:           0.10.0 (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

Digikam 0.10.0 crashes consistently and reproducibly when saving as any file format from the Image Editor. Steps needed to produce this crash:

1. refocus
2. simple sharpen
3. resize
4. refocus
5. white balance
6. levels adjust
7. hue & saturation
8. save: boom

The crash happens at the exact moment I try to specify the file format, either through the drop box of formats, or when I type the extension, e.g. ".jpg".
I am using standard Ubuntu Hardy packages, working on PNGs from Bibble. This bug makes the program unusable since I can't ever save my work.

******************
Backtrace:
******************
Application: digiKam (digikam), signal SIGSEGV
[Current thread is 0 (LWP 15254)]

Thread 7 (Thread 0xb1623b90 (LWP 15255)):
#0  0xb7f20430 in __kernel_vsyscall ()
#1  0xb53720e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb54742ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb56609b2 in QWaitCondition::wait (this=0xa0adaa8, mutex=0xa0adaa4, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0x0828f319 in Digikam::ScanController::run (this=0xa0a25d0) at /build/buildd/digikam-0.10.0/digikam/scancontroller.cpp:412
#5  0xb565f96e in QThreadPrivate::start (arg=0xa0a25d0) at thread/qthread_unix.cpp:189
#6  0xb536e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb546549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 6 (Thread 0xb0ac8b90 (LWP 15260)):
#0  0xb7f20430 in __kernel_vsyscall ()
#1  0xb53720e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb54742ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb56609b2 in QWaitCondition::wait (this=0xa09def0, mutex=0xa09deec, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7151d4a in Digikam::LoadSaveThread::run (this=0xa09dee0) at /build/buildd/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#5  0xb565f96e in QThreadPrivate::start (arg=0xa09dee0) at thread/qthread_unix.cpp:189
#6  0xb536e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb546549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (Thread 0xb00ffb90 (LWP 15261)):
#0  0xb7f20430 in __kernel_vsyscall ()
#1  0xb53720e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb54742ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb56609b2 in QWaitCondition::wait (this=0xa250138, mutex=0xa250134, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7151d4a in Digikam::LoadSaveThread::run (this=0xa250128) at /build/buildd/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#5  0xb565f96e in QThreadPrivate::start (arg=0xa250128) at thread/qthread_unix.cpp:189
#6  0xb536e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb546549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xad1d9b90 (LWP 15280)):
#0  0xb7f20430 in __kernel_vsyscall ()
#1  0xb53720e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb54742ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb56609b2 in QWaitCondition::wait (this=0xb4837f0, mutex=0xb4837ec, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7151d4a in Digikam::LoadSaveThread::run (this=0xb4837e0) at /build/buildd/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#5  0xb565f96e in QThreadPrivate::start (arg=0xb4837e0) at thread/qthread_unix.cpp:189
#6  0xb536e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb546549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa8910b90 (LWP 15286)):
#0  0xb7f20430 in __kernel_vsyscall ()
#1  0xb53720e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb54742ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb56609b2 in QWaitCondition::wait (this=0xc4913c0, mutex=0xc4913bc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7151d4a in Digikam::LoadSaveThread::run (this=0xc4913b0) at /build/buildd/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#5  0xb565f96e in QThreadPrivate::start (arg=0xc4913b0) at thread/qthread_unix.cpp:189
#6  0xb536e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb546549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xab4feb90 (LWP 15297)):
#0  0xb7f20430 in __kernel_vsyscall ()
#1  0xb53720e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb54742ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb56609b2 in QWaitCondition::wait (this=0xcd72c58, mutex=0xcd72c54, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7151d4a in Digikam::LoadSaveThread::run (this=0xcd72c48) at /build/buildd/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#5  0xb565f96e in QThreadPrivate::start (arg=0xcd72c48) at thread/qthread_unix.cpp:189
#6  0xb536e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb546549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb461b920 (LWP 15254)):
[KCrash Handler]
#6  0xb6aea848 in KDirModelNode::rowNumber (this=0x0) at /build/buildd/kde4libs-4.2.2/kio/kio/kdirmodel.cpp:115
#7  0xb6aeeb59 in KDirModelPrivate::_k_slotDeleteItems (this=0xcc7c148, items=@0xbfe3b088) at /build/buildd/kde4libs-4.2.2/kio/kio/kdirmodel.cpp:481
#8  0xb6af05a5 in KDirModel::qt_metacall (this=0xc71ae40, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfe3afbc) at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kio/kdirmodel.moc:79
#9  0xb5769ca8 in QMetaObject::activate (sender=0xcc7ca40, from_signal_index=17, to_signal_index=17, argv=0xbfe3afbc) at kernel/qobject.cpp:3069
#10 0xb576a932 in QMetaObject::activate (sender=0xcc7ca40, m=0xb6c5f07c, local_signal_index=13, argv=0xbfe3afbc) at kernel/qobject.cpp:3143
#11 0xb6ad39f3 in KDirLister::itemsDeleted (this=0xcc7ca40, _t1=@0xbfe3b088) at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kio/kdirlister.moc:289
#12 0xb6ae0bde in KDirLister::Private::emitChanges (this=0xcc7c1d0) at /build/buildd/kde4libs-4.2.2/kio/kio/kdirlister.cpp:1993
#13 0xb6ae12c0 in KDirLister::emitChanges (this=0xcc7ca40) at /build/buildd/kde4libs-4.2.2/kio/kio/kdirlister.cpp:1945
#14 0xb5139deb in KDirOperator::updateDir (this=0xc69c7f0) at /build/buildd/kde4libs-4.2.2/kfile/kdiroperator.cpp:1105
#15 0xb515bde6 in KFileWidgetPrivate::_k_slotFilterChanged (this=0xde763d0) at /build/buildd/kde4libs-4.2.2/kfile/kfilewidget.cpp:1322
#16 0xb515c077 in KFileWidget::qt_metacall (this=0xde09f58, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbfe3b1c8) at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kfile/kfilewidget.moc:132
#17 0xb5769ca8 in QMetaObject::activate (sender=0xc5c3db0, from_signal_index=67, to_signal_index=67, argv=0x0) at kernel/qobject.cpp:3069
#18 0xb576a932 in QMetaObject::activate (sender=0xc5c3db0, m=0xb51928c0, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3143
#19 0xb51504f7 in KFileFilterCombo::filterChanged (this=0xc5c3db0) at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kfile/kfilefiltercombo.moc:82
#20 0xb5150629 in KFileFilterCombo::setCurrentFilter (this=0xc5c3db0, filter=@0xbfe3b294) at /build/buildd/kde4libs-4.2.2/kfile/kfilefiltercombo.cpp:134
#21 0xb5158946 in KFileWidgetPrivate::updateFilter (this=0xde763d0) at /build/buildd/kde4libs-4.2.2/kfile/kfilewidget.cpp:2262
#22 0xb5158b78 in KFileWidgetPrivate::_k_slotLocationChanged (this=0xde763d0, text=@0xbfe3b5f4) at /build/buildd/kde4libs-4.2.2/kfile/kfilewidget.cpp:1489
#23 0xb515c0f8 in KFileWidget::qt_metacall (this=0xde09f58, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfe3b41c) at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kfile/kfilewidget.moc:127
#24 0xb5769ca8 in QMetaObject::activate (sender=0xc5c1fe0, from_signal_index=27, to_signal_index=27, argv=0xbfe3b41c) at kernel/qobject.cpp:3069
#25 0xb576a932 in QMetaObject::activate (sender=0xc5c1fe0, m=0x835d750, local_signal_index=0, argv=0xbfe3b41c) at kernel/qobject.cpp:3143
#26 0xb601f4a3 in QComboBox::editTextChanged (this=0xc5c1fe0, _t1=@0xbfe3b5f4) at .moc/release-shared/moc_qcombobox.cpp:262
#27 0xb60290ae in QComboBox::qt_metacall (this=0xc5c1fe0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfe3b5ac) at .moc/release-shared/moc_qcombobox.cpp:174
#28 0xb6901dea in KComboBox::qt_metacall (this=0xc5c1fe0, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbfe3b5ac) at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kdeui/kcombobox.moc:100
#29 0xb6c0127a in KUrlComboBox::qt_metacall (this=0xc5c1fe0, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbfe3b5ac) at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kio/kurlcombobox.moc:70
#30 0xb5769ca8 in QMetaObject::activate (sender=0xc5c2850, from_signal_index=27, to_signal_index=27, argv=0xbfe3b5ac) at kernel/qobject.cpp:3069
#31 0xb576a932 in QMetaObject::activate (sender=0xc5c2850, m=0x835dd40, local_signal_index=0, argv=0xbfe3b5ac) at kernel/qobject.cpp:3143
#32 0xb60634c3 in QLineEdit::textChanged (this=0xc5c2850, _t1=@0xbfe3b5f4) at .moc/release-shared/moc_qlineedit.cpp:228
#33 0xb6068b1a in QLineEditPrivate::finishChange (this=0xc5c2cf0, validateFromState=0, update=false, edited=true) at widgets/qlineedit.cpp:2975
#34 0xb606956b in QLineEdit::insert (this=0xc5c2850, newText=@0xbfe3b650) at widgets/qlineedit.cpp:1408
#35 0xb606b157 in QLineEdit::keyPressEvent (this=0xc5c2850, event=0xbfe3be6c) at widgets/qlineedit.cpp:2176
#36 0xb6924795 in KLineEdit::keyPressEvent (this=0xc5c2850, e=0xbfe3be6c) at /build/buildd/kde4libs-4.2.2/kdeui/widgets/klineedit.cpp:892
#37 0xb5c7ba03 in QWidget::event (this=0xc5c2850, event=0xbfe3be6c) at kernel/qwidget.cpp:7551
#38 0xb6068f55 in QLineEdit::event (this=0xc5c2850, e=0xbfe3be6c) at widgets/qlineedit.cpp:1681
#39 0xb6925cea in KLineEdit::event (this=0xc5c2850, ev=0xbfe3be6c) at /build/buildd/kde4libs-4.2.2/kdeui/widgets/klineedit.cpp:1309
#40 0xb60249cb in QComboBox::keyPressEvent (this=0xc5c1fe0, e=0xbfe3be6c) at widgets/qcombobox.cpp:2855
#41 0xb5c7ba03 in QWidget::event (this=0xc5c1fe0, event=0xbfe3be6c) at kernel/qwidget.cpp:7551
#42 0xb602332f in QComboBox::event (this=0xc5c1fe0, event=0xbfe3be6c) at widgets/qcombobox.cpp:2674
#43 0xb5c24e9c in QApplicationPrivate::notify_helper (this=0x9d567a8, receiver=0xc5c1fe0, e=0xbfe3be6c) at kernel/qapplication.cpp:4084
#44 0xb5c2e25b in QApplication::notify (this=0xbfe3de04, receiver=0xc5c1fe0, e=0xbfe3be6c) at kernel/qapplication.cpp:3690
#45 0xb684894d in KApplication::notify (this=0xbfe3de04, receiver=0xc5c1fe0, event=0xbfe3be6c) at /build/buildd/kde4libs-4.2.2/kdeui/kernel/kapplication.cpp:307
#46 0xb5753a3b in QCoreApplication::notifyInternal (this=0xbfe3de04, receiver=0xc5c1fe0, event=0xbfe3be6c) at kernel/qcoreapplication.cpp:602
#47 0xb5c25d7e in qt_sendSpontaneousEvent (receiver=0xc5c1fe0, event=0x0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#48 0xb5cc3010 in QKeyMapper::sendKeyEvent (keyWidget=0xc5c1fe0, grab=false, type=QEvent::KeyPress, code=71, modifiers={i = -1075593288}, text=@0xbfe3bfe4, autorepeat=<value optimized out>, 
    count=<value optimized out>, nativeScanCode=42, nativeVirtualKey=103, nativeModifiers=16) at kernel/qkeymapper_x11.cpp:1675
#49 0xb5cc51de in QKeyMapperPrivate::translateKeyEvent (this=0x9d80610, keyWidget=0xc5c1fe0, event=0xbfe3c64c, grab=false) at kernel/qkeymapper_x11.cpp:1645
#50 0xb5c9ad6e in QApplication::x11ProcessEvent (this=0xbfe3de04, event=0xbfe3c64c) at kernel/qapplication_x11.cpp:3436
#51 0xb5cc6c6a in x11EventSourceDispatch (s=0x9d59968, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#52 0xb4a29b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#53 0xb4a2d0eb in ?? () from /usr/lib/libglib-2.0.so.0
#54 0xb4a2d268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#55 0xb577f438 in QEventDispatcherGlib::processEvents (this=0x9d425c0, flags={i = -1075591160}) at kernel/qeventdispatcher_glib.cpp:323
#56 0xb5cc6365 in QGuiEventDispatcherGlib::processEvents (this=0x9d425c0, flags={i = -1075591112}) at kernel/qguieventdispatcher_glib.cpp:202
#57 0xb575206a in QEventLoop::processEvents (this=0xbfe3c8ac, flags={i = -1075591048}) at kernel/qeventloop.cpp:149
#58 0xb57524aa in QEventLoop::exec (this=0xbfe3c8ac, flags={i = -1075590988}) at kernel/qeventloop.cpp:200
#59 0xb613f403 in QDialog::exec (this=0xd9b0b98) at dialogs/qdialog.cpp:498
#60 0xb726ab16 in Digikam::EditorWindow::startingSaveAs (this=0xce234b8, url=@0xccd3338) at /build/buildd/digikam-0.10.0/utilities/imageeditor/editor/editorwindow.cpp:1542
#61 0x08095f87 in Digikam::ImageWindow::saveAs (this=0xce234b8) at /build/buildd/digikam-0.10.0/utilities/imageeditor/editor/imagewindow.cpp:1020
#62 0xb726e603 in Digikam::EditorWindow::qt_metacall (this=0xce234b8, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfe3cd9c)
    at /build/buildd/digikam-0.10.0/utilities/imageeditor/editor/editorwindow.h:179
#63 0x0809691f in Digikam::ImageWindow::qt_metacall (this=0xce234b8, _c=QMetaObject::InvokeMetaMethod, _id=49, _a=0xbfe3cd9c)
    at /build/buildd/digikam-0.10.0/obj-i486-linux-gnu/digikam/imagewindow.moc:120
#64 0xb5769ca8 in QMetaObject::activate (sender=0xd5f8e48, from_signal_index=5, to_signal_index=6, argv=0xbfe3cd9c) at kernel/qobject.cpp:3069
#65 0xb576a0e0 in QMetaObject::activate (sender=0xd5f8e48, m=0x835dbe0, from_local_signal_index=1, to_local_signal_index=2, argv=0xbfe3cd9c) at kernel/qobject.cpp:3163
#66 0xb5c1e891 in QAction::triggered (this=0xd5f8e48, _t1=false) at .moc/release-shared/moc_qaction.cpp:236
#67 0xb5c1fe0f in QAction::activate (this=0xd5f8e48, event=QAction::Trigger) at kernel/qaction.cpp:1160
#68 0xb609a01c in QMenuPrivate::activateCausedStack (this=0xd62a6b8, causedStack=@0xbfe3ce78, action=0xd5f8e48, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:962
#69 0xb60a076b in QMenuPrivate::activateAction (this=0xd62a6b8, action=0xd5f8e48, action_e=QAction::Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1058
#70 0xb60a1242 in QMenu::mouseReleaseEvent (this=0xd62a000, e=0xbfe3d4b8) at widgets/qmenu.cpp:2252
#71 0xb692f7e5 in KMenu::mouseReleaseEvent (this=0xd62a000, e=0xbfe3d4b8) at /build/buildd/kde4libs-4.2.2/kdeui/widgets/kmenu.cpp:454
#72 0xb5c7bb43 in QWidget::event (this=0xd62a000, event=0xbfe3d4b8) at kernel/qwidget.cpp:7516
#73 0xb60a3629 in QMenu::event (this=0xd62a000, e=0xbfe3d4b8) at widgets/qmenu.cpp:2351
#74 0xb5c24e9c in QApplicationPrivate::notify_helper (this=0x9d567a8, receiver=0xd62a000, e=0xbfe3d4b8) at kernel/qapplication.cpp:4084
#75 0xb5c2db11 in QApplication::notify (this=0xbfe3de04, receiver=0xd62a000, e=0xbfe3d4b8) at kernel/qapplication.cpp:3786
#76 0xb684894d in KApplication::notify (this=0xbfe3de04, receiver=0xd62a000, event=0xbfe3d4b8) at /build/buildd/kde4libs-4.2.2/kdeui/kernel/kapplication.cpp:307
#77 0xb5753a3b in QCoreApplication::notifyInternal (this=0xbfe3de04, receiver=0xd62a000, event=0xbfe3d4b8) at kernel/qcoreapplication.cpp:602
#78 0xb5c2cb7e in QApplicationPrivate::sendMouseEvent (receiver=0xd62a000, event=0xbfe3d4b8, alienWidget=0x0, nativeWidget=0xd62a000, buttonDown=0xb64cf200, lastMouseReceiver=@0xb64cf204)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#79 0xb5c9cc06 in QETWidget::translateMouseEvent (this=0xd62a000, event=0xbfe3dafc) at kernel/qapplication_x11.cpp:4359
#80 0xb5c9bca7 in QApplication::x11ProcessEvent (this=0xbfe3de04, event=0xbfe3dafc) at kernel/qapplication_x11.cpp:3421
#81 0xb5cc6c6a in x11EventSourceDispatch (s=0x9d59968, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#82 0xb4a29b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#83 0xb4a2d0eb in ?? () from /usr/lib/libglib-2.0.so.0
#84 0xb4a2d268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#85 0xb577f438 in QEventDispatcherGlib::processEvents (this=0x9d425c0, flags={i = -1075585864}) at kernel/qeventdispatcher_glib.cpp:323
#86 0xb5cc6365 in QGuiEventDispatcherGlib::processEvents (this=0x9d425c0, flags={i = -1075585816}) at kernel/qguieventdispatcher_glib.cpp:202
#87 0xb575206a in QEventLoop::processEvents (this=0xbfe3dd60, flags={i = -1075585752}) at kernel/qeventloop.cpp:149
#88 0xb57524aa in QEventLoop::exec (this=0xbfe3dd60, flags={i = -1075585688}) at kernel/qeventloop.cpp:200
#89 0xb5754959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#90 0xb5c24d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#91 0x082b4e3b in main (argc=5, argv=0xbfe3e064) at /build/buildd/digikam-0.10.0/digikam/main.cpp:190