Application: kate (3.7.1)
KDE Platform Version: 4.7.1 (4.7.1)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
Since I've upgraded to ubuntu 11.10, every time I open a second file in Kate, it crashes. It does not matter what file i open or where the file is located.

The crash can be reproduced every time.

-- Backtrace:
Application: Kate (kate), signal: Aborted
[Current thread is 1 (Thread 0xb77f3930 (LWP 3023))]

Thread 4 (Thread 0xb6bffb70 (LWP 3026)):
#0  0x00110416 in __kernel_vsyscall ()
#1  0x005c640e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x0340034b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x033f1896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x033f1f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x01d06cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x034185f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x004ddd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x005d50ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xb5457b70 (LWP 3028)):
#0  0x033f1931 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x033f1c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x0717eb37 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#3  0x0714f1dd in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#4  0x0714f421 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#5  0x0705290b in QThread::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#6  0x0712fe2d in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#7  0x070557b3 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#8  0x004ddd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0x005d50ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xb4baab70 (LWP 3029)):
#0  0x00110416 in __kernel_vsyscall ()
#1  0x004e1a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x005e2cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x04c459a9 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0x04c459ef in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0x004ddd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x005d50ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb77f3930 (LWP 3023)):
[KCrash Handler]
#7  0x00110416 in __kernel_vsyscall ()
#8  0x00530c8f in raise () from /lib/i386-linux-gnu/libc.so.6
#9  0x005342b5 in abort () from /lib/i386-linux-gnu/libc.so.6
#10 0x0704b4a6 in qt_message_output(QtMsgType, char const*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#11 0x0704b8db in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#12 0x0704b9f8 in qFatal(char const*, ...) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#13 0x0704ba85 in qt_assert(char const*, char const*, int) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#14 0x057385c8 in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#15 0x05739027 in QSpiAccessibleBridge::notifyAboutCreation(QSpiAdaptor*) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#16 0x0573857a in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#17 0x05739b7d in QSpiAccessibleBridge::notifyAccessibilityUpdate(int, QAccessibleInterface*, int) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#18 0x0126239e in QAccessible::updateAccessibility(QObject*, int, QAccessible::Event) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#19 0x00d20008 in QWidget::changeEvent(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#20 0x00d2d4a8 in QWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#21 0x00cd2d54 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#22 0x00cd81a8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#23 0x00866721 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#24 0x0715019e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#25 0x00d2ee57 in QWidgetPrivate::setEnabled_helper(bool) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#26 0x00d30ec6 in QWidget::setParent(QWidget*, QFlags<Qt::WindowType>) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#27 0x00d31fa3 in QWidgetPrivate::init(QWidget*, QFlags<Qt::WindowType>) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#28 0x00d325d3 in QWidget::QWidget(QWidget*, QFlags<Qt::WindowType>) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#29 0x011c57f3 in QAbstractScrollAreaPrivate::init() () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#30 0x011c5c74 in QAbstractScrollArea::QAbstractScrollArea(QAbstractScrollAreaPrivate&, QWidget*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#31 0x01263e02 in QAbstractItemView::QAbstractItemView(QAbstractItemViewPrivate&, QWidget*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#32 0x0128623c in QListView::QListView(QListViewPrivate&, QWidget*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#33 0x012d5501 in QListWidget::QListWidget(QWidget*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#34 0x03768f64 in ?? () from /usr/lib/libkatepartinterfaces.so.4
#35 0x0376610a in ?? () from /usr/lib/libkatepartinterfaces.so.4
#36 0x0374def6 in KateCompletionWidget::KateCompletionWidget(KateView*) () from /usr/lib/libkatepartinterfaces.so.4
#37 0x0382551c in KateView::completionWidget() const () from /usr/lib/libkatepartinterfaces.so.4
#38 0x0382559b in KateView::registerCompletionModel(KTextEditor::CodeCompletionModel*) () from /usr/lib/libkatepartinterfaces.so.4
#39 0x03779a32 in ?? () from /usr/lib/libkatepartinterfaces.so.4
#40 0x03833ab9 in KateView::KateView(KateDocument*, QWidget*) () from /usr/lib/libkatepartinterfaces.so.4
#41 0x03791ef0 in KateDocument::createView(QWidget*) () from /usr/lib/libkatepartinterfaces.so.4
#42 0x0049bfdd in ?? () from /usr/lib/libkateinterfaces.so.4
#43 0x0049ca8a in ?? () from /usr/lib/libkateinterfaces.so.4
#44 0x0049cb75 in ?? () from /usr/lib/libkateinterfaces.so.4
#45 0x004803fa in KateApp::openDocUrl(KUrl const&, QString const&, bool) () from /usr/lib/libkateinterfaces.so.4
#46 0x0047becc in ?? () from /usr/lib/libkateinterfaces.so.4
#47 0x0047c657 in ?? () from /usr/lib/libkateinterfaces.so.4
#48 0x003f8d87 in ?? () from /usr/lib/i386-linux-gnu/libQtDBus.so.4
#49 0x003f9eb6 in ?? () from /usr/lib/i386-linux-gnu/libQtDBus.so.4
#50 0x003fa804 in ?? () from /usr/lib/i386-linux-gnu/libQtDBus.so.4
#51 0x003faa18 in ?? () from /usr/lib/i386-linux-gnu/libQtDBus.so.4
#52 0x07168b52 in QObject::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#53 0x0715077a in QCoreApplication::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#54 0x00cd73d1 in QApplication::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#55 0x00cd2d54 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#56 0x00cd8103 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#57 0x00866721 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#58 0x0715019e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#59 0x07153f93 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#60 0x071540ec in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#61 0x0717e6a4 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#62 0x033f125f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#63 0x033f1990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#64 0x033f1c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#65 0x0717eada in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#66 0x00d8ae3a in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#67 0x0714f1dd in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#68 0x0714f421 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#69 0x0715419d in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#70 0x00cd08f4 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#71 0x00b748cd in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kate.so
#72 0x080484fb in ?? ()
#73 0x0051c113 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#74 0x08048521 in _start ()

Reported using DrKonqi