Application that crashed: digikam
Version of the application: 0.10.0
KDE Version: 4.3.00 (KDE 4.3.0) "release 152"
Qt Version: 4.5.2
Operating System: Linux 2.6.27.29-0.1-pae i686
Distribution: "openSUSE 11.1 (i586)"

What I was doing when the application crashed:
Gwenview gives the same result. Scan looked to be ok, but when trying to save the image into a local directory it gave a segmentation fault. I hope that this helps get me back into the scanning mode. Using Iscan free if it matters - usb connected Epson RX580 all in one printer / copier / fax / scanner.  No problem in the past with this combo - just since KDE 4.3 and latest updates to digikam & Gwenview and Iscan.

 -- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
[Current thread is 1 (Thread 0xb3616700 (LWP 4544))]

Thread 10 (Thread 0xb1fd5b90 (LWP 4547)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5663c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb56c3582 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0x0828f589 in Digikam::ScanController::run (this=0x846dc18) at /usr/src/debug/digikam-0.10.0/digikam/scancontroller.cpp:412
#4  0xb56c2572 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#6  0xb54a23be in clone () from /lib/libc.so.6

Thread 9 (Thread 0xb0cb2b90 (LWP 4550)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5663c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb56c3582 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb728fec2 in Digikam::LoadSaveThread::run (this=0x8507ef8) at /usr/src/debug/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#4  0xb56c2572 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#6  0xb54a23be in clone () from /lib/libc.so.6

Thread 8 (Thread 0xb14b3b90 (LWP 4551)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5663c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb56c3582 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb728fec2 in Digikam::LoadSaveThread::run (this=0x851b3f8) at /usr/src/debug/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#4  0xb56c2572 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#6  0xb54a23be in clone () from /lib/libc.so.6

Thread 7 (Thread 0xadc9bb90 (LWP 4552)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5663f62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xaeccd721 in ?? () from /usr/lib/libxine.so.1
#3  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#4  0xb54a23be in clone () from /lib/libc.so.6

Thread 6 (Thread 0xad406b90 (LWP 4555)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5666bbb in read () from /lib/libpthread.so.0
#2  0xaf001992 in ?? () from /usr/lib/libasound.so.2
#3  0xaeffeedd in snd_ctl_read () from /usr/lib/libasound.so.2
#4  0xaeffb28f in snd_hctl_handle_events () from /usr/lib/libasound.so.2
#5  0xaf007401 in snd_mixer_handle_events () from /usr/lib/libasound.so.2
#6  0xad495051 in ?? () from /usr/lib/xine/plugins/1.26/xineplug_ao_out_alsa.so
#7  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#8  0xb54a23be in clone () from /lib/libc.so.6

Thread 5 (Thread 0xacc05b90 (LWP 4556)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5663c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xaecdff33 in ?? () from /usr/lib/libxine.so.1
#3  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#4  0xb54a23be in clone () from /lib/libc.so.6

Thread 4 (Thread 0xabfc4b90 (LWP 4557)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5663f62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xaecdc17e in ?? () from /usr/lib/libxine.so.1
#3  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#4  0xb54a23be in clone () from /lib/libc.so.6

Thread 3 (Thread 0xab7c3b90 (LWP 4558)):
#0  0xb5662cc6 in __pthread_mutex_unlock_usercnt () from /lib/libpthread.so.0
#1  0xb4ec38ce in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0xb4ec3d6a in ?? () from /usr/lib/libglib-2.0.so.0
#3  0xb4ec4241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0xb57e28f7 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#5  0xb57b578a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0xb57b5bd2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#7  0xb56bf229 in QThread::exec() () from /usr/lib/libQtCore.so.4
#8  0xaed222f8 in ?? () from /usr/lib/kde4/phonon_xine.so
#9  0xb56c2572 in ?? () from /usr/lib/libQtCore.so.4
#10 0xb56601b5 in start_thread () from /lib/libpthread.so.0
#11 0xb54a23be in clone () from /lib/libc.so.6

Thread 2 (Thread 0xa76ffb90 (LWP 4574)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5663c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb56c3582 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb728fec2 in Digikam::LoadSaveThread::run (this=0x94e95f8) at /usr/src/debug/digikam-0.10.0/libs/threadimageio/loadsavethread.cpp:131
#4  0xb56c2572 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb56601b5 in start_thread () from /lib/libpthread.so.0
#6  0xb54a23be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb3616700 (LWP 4544)):
[KCrash Handler]
#6  0xa6e927bc in KIPIPlugins::KPWriteImage::write2PNG(QString const&) () from /usr/lib/libkipiplugins.so.1
#7  0xaa72427b in ?? () from /usr/lib/kde4/kipiplugin_acquireimages.so
#8  0xaa724993 in ?? () from /usr/lib/kde4/kipiplugin_acquireimages.so
#9  0xb57cc788 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#10 0xb57cd412 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#11 0xa52a6b25 in KSaneIface::KSaneWidget::imageReady (this=0x9b08768, _t1=@0xaf584a4, _t2=472, _t3=294, _t4=472, _t5=1) at /usr/src/debug/kdegraphics-4.3.0/build/libs/libksane/libksane/ksane.moc:93
#12 0xa52a6c36 in KSaneIface::KSaneWidget::qt_metacall (this=0x9b08768, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbf80c89c)
    at /usr/src/debug/kdegraphics-4.3.0/build/libs/libksane/libksane/ksane.moc:77
#13 0xb57cc788 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#14 0xb57cd412 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#15 0xa52ad0b5 in KSaneIface::KSaneWidgetPrivate::imageReady (this=0xaf583f0, _t1=@0xaf584a4, _t2=472, _t3=294, _t4=472, _t5=1)
    at /usr/src/debug/kdegraphics-4.3.0/build/libs/libksane/libksane/ksane_widget_private.moc:118
#16 0xa52af33a in KSaneIface::KSaneWidgetPrivate::scanDone (this=0xaf583f0) at /usr/src/debug/kdegraphics-4.3.0/libs/libksane/libksane/ksane_widget_private.cpp:867
#17 0xa52b107a in KSaneIface::KSaneWidgetPrivate::processData (this=0xaf583f0) at /usr/src/debug/kdegraphics-4.3.0/libs/libksane/libksane/ksane_widget_private.cpp:993
#18 0xa52b178b in KSaneIface::KSaneWidgetPrivate::qt_metacall (this=0xaf583f0, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x9d8c198)
    at /usr/src/debug/kdegraphics-4.3.0/build/libs/libksane/libksane/ksane_widget_private.moc:106
#19 0xb57c5eab in QMetaCallEvent::placeMetaCall(QObject*) () from /usr/lib/libQtCore.so.4
#20 0xb57c7970 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#21 0xb5ca97fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0xb5cb1aee in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#23 0xb688c27d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#24 0xb57b716b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#25 0xb57b7db5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#26 0xb57b7fad in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#27 0xb57e2c8f in ?? () from /usr/lib/libQtCore.so.4
#28 0xb4ec09c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#29 0xb4ec4083 in ?? () from /usr/lib/libglib-2.0.so.0
#30 0xb4ec4241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#31 0xb57e28d8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0xb5d49ce5 in ?? () from /usr/lib/libQtGui.so.4
#33 0xb57b578a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0xb57b5bd2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#35 0xb617b323 in QDialog::exec() () from /usr/lib/libQtGui.so.4
#36 0xaa720697 in ?? () from /usr/lib/kde4/kipiplugin_acquireimages.so
#37 0xaa720745 in ?? () from /usr/lib/kde4/kipiplugin_acquireimages.so
#38 0xb57cc788 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#39 0xb57ccbc0 in QMetaObject::activate(QObject*, QMetaObject const*, int, int, void**) () from /usr/lib/libQtCore.so.4
#40 0xb5ca3181 in QAction::triggered(bool) () from /usr/lib/libQtGui.so.4
#41 0xb5ca46ff in QAction::activate(QAction::ActionEvent) () from /usr/lib/libQtGui.so.4
#42 0xb60d5bb4 in ?? () from /usr/lib/libQtGui.so.4
#43 0xb60dc34b in ?? () from /usr/lib/libQtGui.so.4
#44 0xb60dce92 in QMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#45 0xb6973f55 in KMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libkdeui.so.5
#46 0xb5d003d3 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#47 0xb60df149 in QMenu::event(QEvent*) () from /usr/lib/libQtGui.so.4
#48 0xb5ca97fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#49 0xb5cb2461 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#50 0xb688c27d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#51 0xb57b716b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#52 0xb5cb14ce in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#53 0xb5d2198e in ?? () from /usr/lib/libQtGui.so.4
#54 0xb5d20add in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#55 0xb5d4a5ea in ?? () from /usr/lib/libQtGui.so.4
#56 0xb4ec09c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#57 0xb4ec4083 in ?? () from /usr/lib/libglib-2.0.so.0
#58 0xb4ec4241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#59 0xb57e28d8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#60 0xb5d49ce5 in ?? () from /usr/lib/libQtGui.so.4
#61 0xb57b578a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#62 0xb57b5bd2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#63 0xb57b8079 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#64 0xb5ca9677 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#65 0x082b50bb in main (argc=5, argv=0xbf80f514) at /usr/src/debug/digikam-0.10.0/digikam/main.cpp:190

This bug may be a duplicate of or related to bug 188988

Reported using DrKonqi