Application: krita (2.3.1)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.37-0.slh.18-aptosid-686 i686
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
Crash when opening a small GIF
This is a recent upgrade of Krita which flowed through to Debian "sid" in the last couple of days, so I hope this report is useful.

 -- Backtrace:
Application: Krita (krita), signal: Segmentation fault
[Current thread is 1 (Thread 0xb470b720 (LWP 24604))]

Thread 2 (Thread 0xa56d3b70 (LWP 24610)):
#0  0xb7767424 in __kernel_vsyscall ()
#1  0xb567df7f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/cmov/libpthread.so.0
#2  0xb76d8e0d in pthread_cond_wait () from /lib/i686/cmov/libc.so.6
#3  0xb65b2fb7 in wait (this=0xa0d2fd4, mutex=0xa0d2fd0, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa0d2fd4, mutex=0xa0d2fd0, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xb65ae7d2 in QSemaphore::tryAcquire (this=0xa0b7040, n=1, timeout=-1) at thread/qsemaphore.cpp:219
#6  0xb273f080 in KisTileDataSwapper::waitForWork() () from /usr/lib/libkritaimage.so.8
#7  0xb273f0c4 in KisTileDataSwapper::run() () from /usr/lib/libkritaimage.so.8
#8  0xb65b1fbe in QThreadPrivate::start (arg=0xa0bbe7c) at thread/qthread_unix.cpp:248
#9  0xb5679955 in start_thread () from /lib/i686/cmov/libpthread.so.0
#10 0xb76cbe7e in clone () from /lib/i686/cmov/libc.so.6

Thread 1 (Thread 0xb470b720 (LWP 24604)):
[KCrash Handler]
#6  0xb28ab41e in vtable for KisAbstractUpdateScheduler () from /usr/lib/libkritaimage.so.8
#7  0x0a0ba8c8 in ?? ()
#8  0xb29fd1ce in KisNodeModel::setImage(KisWeakSharedPtr<KisImage>) () from /usr/lib/libkritaui.so.8
#9  0xb29bdd8f in KisDoc2::setCurrentImage(KisWeakSharedPtr<KisImage>) () from /usr/lib/libkritaui.so.8
#10 0xa5a27b21 in ?? () from /usr/lib/kde4/kritagifimport.so
#11 0xb7580328 in ?? () from /usr/lib/libkomain.so.8
#12 0xb757654d in KoFilterChain::invokeChain() () from /usr/lib/libkomain.so.8
#13 0xb7574495 in KoFilterManager::importDocument(QString const&, KoFilter::ConversionStatus&) () from /usr/lib/libkomain.so.8
#14 0xb75235f6 in KoDocument::openFile() () from /usr/lib/libkomain.so.8
#15 0xb6428ca9 in KParts::ReadOnlyPart::openUrl (this=0x87b2680, url=...) at ../../kparts/part.cpp:557
#16 0xb7522d91 in KoDocument::openUrl(KUrl const&) () from /usr/lib/libkomain.so.8
#17 0xb7518e79 in KoDocument::openExistingFile(KUrl const&) () from /usr/lib/libkomain.so.8
#18 0xb29bda3c in KisDoc2::openExistingFile(KUrl const&) () from /usr/lib/libkritaui.so.8
#19 0xb29c2730 in KisDoc2::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkritaui.so.8
#20 0xb66b37aa in QMetaObject::metacall (object=0x87b2680, cl=QMetaObject::InvokeMetaMethod, idx=44, argv=0xbfb89b18) at kernel/qmetaobject.cpp:237
#21 0xb66c21bb in QMetaObject::activate (sender=0x9e8f528, m=0xb75fb8e8, local_signal_index=0, argv=0xbfb89b18) at kernel/qobject.cpp:3295
#22 0xb7593283 in ?? () from /usr/lib/libkomain.so.8
#23 0xb75937bd in ?? () from /usr/lib/libkomain.so.8
#24 0xb66b37aa in QMetaObject::metacall (object=0x9e8f528, cl=QMetaObject::InvokeMetaMethod, idx=0, argv=0xbfb89c48) at kernel/qmetaobject.cpp:237
#25 0xb66c21bb in QMetaObject::activate (sender=0x9e91328, m=0xb75fb7c8, local_signal_index=0, argv=0xbfb89c48) at kernel/qobject.cpp:3295
#26 0xb7592963 in ?? () from /usr/lib/libkomain.so.8
#27 0xb7592a1f in ?? () from /usr/lib/libkomain.so.8
#28 0xb7592ac0 in ?? () from /usr/lib/libkomain.so.8
#29 0xb66b37aa in QMetaObject::metacall (object=0x9e91328, cl=QMetaObject::InvokeMetaMethod, idx=-1078420360, argv=0x9e91328) at kernel/qmetaobject.cpp:237
#30 0xb66c21bb in QMetaObject::activate (sender=0x871e030, m=0xb637d470, local_signal_index=6, argv=0x0) at kernel/qobject.cpp:3295
#31 0xb6336447 in KFileWidget::accepted (this=0x871e030) at ./kfilewidget.moc:209
#32 0xb6347d2e in KFileWidget::slotOk (this=0x871e030) at ../../kfile/kfilewidget.cpp:997
#33 0xb633bbfc in KFileWidgetPrivate::_k_fileSelected (this=0x87195f0, i=...) at ../../kfile/kfilewidget.cpp:1104
#34 0xb63466e8 in KFileWidget::qt_metacall (this=0x871e030, _c=QMetaObject::InvokeMetaMethod, _id=44, _a=0xbfb8a108) at ./kfilewidget.moc:145
#35 0xb66b37aa in QMetaObject::metacall (object=0x871e030, cl=QMetaObject::InvokeMetaMethod, idx=44, argv=0xbfb8a108) at kernel/qmetaobject.cpp:237
#36 0xb66c21bb in QMetaObject::activate (sender=0x871b508, m=0xb637cab4, local_signal_index=7, argv=0xbfb8a108) at kernel/qobject.cpp:3295
#37 0xb631aac3 in KDirOperator::fileSelected (this=0x871b508, _t1=...) at ./kdiroperator.moc:322
#38 0xb631b639 in KDirOperator::selectFile (this=0x871b508, item=...) at ../../kfile/kdiroperator.cpp:1718
#39 0xb631b7a1 in KDirOperator::Private::_k_slotActivated (this=0x871bb40, index=...) at ../../kfile/kdiroperator.cpp:2365
#40 0xb63276d5 in KDirOperator::qt_metacall (this=0x871b508, _c=QMetaObject::InvokeMetaMethod, _id=59, _a=0xbfb8a2b8) at ./kdiroperator.moc:251
#41 0xb66b37aa in QMetaObject::metacall (object=0x871b508, cl=QMetaObject::InvokeMetaMethod, idx=86, argv=0xbfb8a2b8) at kernel/qmetaobject.cpp:237
#42 0xb66c21bb in QMetaObject::activate (sender=0x9ef0360, m=0xb74aaea4, local_signal_index=3, argv=0xbfb8a2b8) at kernel/qobject.cpp:3295
#43 0xb710e963 in QAbstractItemView::activated (this=0x9ef0360, _t1=...) at .moc/release-shared/moc_qabstractitemview.cpp:345
#44 0xb7111e87 in QAbstractItemView::mouseDoubleClickEvent (this=0x9ef0360, event=0xbfb8acb4) at itemviews/qabstractitemview.cpp:1820
#45 0xb6bd564e in QWidget::event (this=0x9ef0360, event=0xbfb8acb4) at kernel/qwidget.cpp:8048
#46 0xb6fcf8d3 in QFrame::event (this=0x9ef0360, e=0xbfb8acb4) at widgets/qframe.cpp:557
#47 0xb706a092 in QAbstractScrollArea::viewportEvent (this=0x0, e=0xa0b6e80) at widgets/qabstractscrollarea.cpp:1036
#48 0xb711f8a7 in QAbstractItemView::viewportEvent (this=0x9ef0360, event=0xbfb8acb4) at itemviews/qabstractitemview.cpp:1615
#49 0xb706ca65 in viewportEvent (this=0x9eae998, o=0x9ef1b68, e=0xbfb8acb4) at widgets/qabstractscrollarea_p.h:100
#50 QAbstractScrollAreaFilter::eventFilter (this=0x9eae998, o=0x9ef1b68, e=0xbfb8acb4) at widgets/qabstractscrollarea_p.h:116
#51 0xb66ad76a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x86127c8, receiver=0x9ef1b68, event=0xbfb8acb4) at kernel/qcoreapplication.cpp:841
#52 0xb6b775a9 in QApplicationPrivate::notify_helper (this=0x86127c8, receiver=0x9ef1b68, e=0xbfb8acb4) at kernel/qapplication.cpp:4298
#53 0xb6b7eaf7 in QApplication::notify (this=0xbfb8b2b0, receiver=0x9ef1b68, e=0xbfb8acb4) at kernel/qapplication.cpp:3867
#54 0xb5939bfa in KApplication::notify (this=0xbfb8b2b0, receiver=0x9ef1b68, event=0xbfb8acb4) at ../../kdeui/kernel/kapplication.cpp:302
#55 0xb66ae4cb in QCoreApplication::notifyInternal (this=0xbfb8b2b0, receiver=0x9ef1b68, event=0xbfb8acb4) at kernel/qcoreapplication.cpp:726
#56 0xb6b7da52 in sendEvent (receiver=0x9ef1b68, event=0xbfb8acb4, alienWidget=0x9ef1b68, nativeWidget=0x8702ba0, buttonDown=0xb74bf998, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#57 QApplicationPrivate::sendMouseEvent (receiver=0x9ef1b68, event=0xbfb8acb4, alienWidget=0x9ef1b68, nativeWidget=0x8702ba0, buttonDown=0xb74bf998, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2967
#58 0xb6c08d4c in QETWidget::translateMouseEvent (this=0x8702ba0, event=0xbfb8b10c) at kernel/qapplication_x11.cpp:4380
#59 0xb6c08253 in QApplication::x11ProcessEvent (this=0xbfb8b2b0, event=0xbfb8b10c) at kernel/qapplication_x11.cpp:3391
#60 0xb6c36dab in QEventDispatcherX11::processEvents (this=0x85f2db8, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#61 0xb66acae9 in QEventLoop::processEvents (this=0xbfb8b244, flags=) at kernel/qeventloop.cpp:149
#62 0xb66acf3a in QEventLoop::exec (this=0xbfb8b244, flags=...) at kernel/qeventloop.cpp:201
#63 0xb66b216f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#64 0xb6b77667 in QApplication::exec () at kernel/qapplication.cpp:3581
#65 0xb77633dd in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_krita.so
#66 0x080485fb in _start ()

Reported using DrKonqi