Application: konqueror (4.4.5 (KDE 4.4.5))
KDE Platform Version: 4.4.5 (KDE 4.4.5) (Compiled from sources)
Qt Version: 4.6.3
Operating System: Linux 2.6.34-tuxonice-r1 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
I was in a hurry and I opened Konqueror, entered sftp://some.host.org and without waiting for the login window, I opened a tab. A few moments after the new tab was created, the login window appeared, I entered my credentials and pressed ENTER. That's when it crashed.

The crash can be reproduced every time.

 -- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[KCrash Handler]
#5  0x000000315e469e92 in ViewExtensionsFactory::handleCurrentIndexChange(QModelIndex const&, QModelIndex const&) () from /usr/lib64/libdolphinprivate.so.4
#6  0x000000315e43dbd7 in DolphinDetailsView::currentChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib64/libdolphinprivate.so.4
#7  0x000000315b422b56 in QAbstractItemView::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/qt4/libQtGui.so.4
#8  0x000000315b460861 in QTreeView::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/qt4/libQtGui.so.4
#9  0x000000315e440491 in DolphinDetailsView::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libdolphinprivate.so.4
#10 0x0000003d00763182 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#11 0x000000315b46759c in QItemSelectionModel::currentChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib64/qt4/libQtGui.so.4
#12 0x000000315b4676ac in QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#13 0x000000315b41a710 in QAbstractItemView::focusInEvent(QFocusEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#14 0x000000315b007105 in QWidget::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#15 0x000000315b32a37a in QFrame::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#16 0x000000315b39ea0a in QAbstractScrollArea::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#17 0x000000315b420e85 in QAbstractItemView::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#18 0x000000315afbbbc8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#19 0x000000315afc231b in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#20 0x000000315c41a352 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#21 0x0000003d00751a0a in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#22 0x000000315afc45af in QApplicationPrivate::setFocusWidget(QWidget*, Qt::FocusReason) () from /usr/lib64/qt4/libQtGui.so.4
#23 0x000000315affd614 in QWidget::setFocus(Qt::FocusReason) () from /usr/lib64/qt4/libQtGui.so.4
#24 0x000000315e43f8a4 in DolphinDetailsView::DolphinDetailsView(QWidget*, DolphinController*, DolphinSortFilterProxyModel*) () from /usr/lib64/libdolphinprivate.so.4
#25 0x000000315e449e1b in DolphinView::ViewAccessor::createView(QWidget*, DolphinController*, DolphinView::Mode) () from /usr/lib64/libdolphinprivate.so.4
#26 0x000000315e449fd0 in DolphinView::createView() () from /usr/lib64/libdolphinprivate.so.4
#27 0x000000315e44aae8 in DolphinView::applyViewProperties() () from /usr/lib64/libdolphinprivate.so.4
#28 0x000000315e44de52 in DolphinView::updateView(KUrl const&, KUrl const&) () from /usr/lib64/libdolphinprivate.so.4
#29 0x000000315e44deff in DolphinView::setUrl(KUrl const&) () from /usr/lib64/libdolphinprivate.so.4
#30 0x00007fef54fca22e in DolphinPart::openUrl(KUrl const&) () from /usr/lib64/kde4/dolphinpart.so
#31 0x000000315aa4a892 in KonqView::openUrl(KUrl const&, QString const&, QString const&, bool) () from /usr/lib64/libkdeinit4_konqueror.so
#32 0x000000315aa82bb4 in KonqMainWindow::openView(QString, KUrl const&, KonqView*, KonqOpenURLRequest const&) () from /usr/lib64/libkdeinit4_konqueror.so
#33 0x000000315aa40d50 in KonqRun::tryOpenView(QString const&, bool) () from /usr/lib64/libkdeinit4_konqueror.so
#34 0x000000315aa40e70 in KonqRun::foundMimeType(QString const&) () from /usr/lib64/libkdeinit4_konqueror.so
#35 0x000000315cb5f4d2 in KRun::mimeTypeDetermined(QString const&) () from /usr/lib64/libkio.so.5
#36 0x000000315cb5fd42 in KRun::slotTimeout() () from /usr/lib64/libkio.so.5
#37 0x000000315cb62751 in KRun::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#38 0x000000315d43523f in KParts::BrowserRun::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkparts.so.4
#39 0x000000315aa41333 in KonqRun::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeinit4_konqueror.so
#40 0x0000003d00763182 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#41 0x0000003d0075fb60 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#42 0x000000315afbbbc8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#43 0x000000315afc23dc in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#44 0x000000315c41a352 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#45 0x0000003d00751a0a in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#46 0x0000003d0077a45c in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4
#47 0x0000003d0077733b in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4
#48 0x0000003a0843a75a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#49 0x0000003a0843dd81 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#50 0x0000003a0843df3e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#51 0x0000003d00777090 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#52 0x000000315b04b202 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#53 0x0000003d00750662 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#54 0x0000003d007509b3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#55 0x0000003d00754eff in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#56 0x000000315aab9fbc in kdemain () from /usr/lib64/libkdeinit4_konqueror.so
#57 0x0000003bdec1ebbd in __libc_start_main () from /lib/libc.so.6
#58 0x00000000004008f9 in _start ()

Reported using DrKonqi