Application that crashed: dolphin
Version of the application: 1.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31-ARCH x86_64

What I was doing when the application crashed:
I copied the folder into the "/tmp" directory and change permissions to ro. After some time I needed to return back the writable permissions. I opened the settings window of the directory and tried to change permissions. When I click apply button — dolphin is crached.

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fef7c3a4750 (LWP 3096))]

Thread 2 (Thread 0x7fef66d53910 (LWP 3101)):
#0  0x00007fef783e505d in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fef6c02c581 in metronom_sync_loop () from /usr/lib/libxine.so.1
#2  0x00007fef783e057a in start_thread () from /lib/libpthread.so.0
#3  0x00007fef786c014d in clone () from /lib/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fef7c3a4750 (LWP 3096)):
[KCrash Handler]
#5  0x00007fef7be25bd0 in KDirModelNode::rowNumber() const () from /usr/lib/libkio.so.5
#6  0x00007fef7be25c71 in KDirModelPrivate::indexForNode(KDirModelNode*, int) const () from /usr/lib/libkio.so.5
#7  0x00007fef7be2a616 in KDirModelPrivate::_k_slotNewItems(KUrl const&, KFileItemList const&) () from /usr/lib/libkio.so.5
#8  0x00007fef7be2b9f6 in KDirModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkio.so.5
#9  0x00007fef78da9d3c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#10 0x00007fef7be0f76a in KDirLister::itemsAdded(KUrl const&, KFileItemList const&) () from /usr/lib/libkio.so.5
#11 0x00007fef7be1051a in KDirLister::Private::emitItems() () from /usr/lib/libkio.so.5
#12 0x00007fef7be1af98 in KDirListerCache::processPendingUpdates() () from /usr/lib/libkio.so.5
#13 0x00007fef7be1b90e in KDirListerCache::slotFilesChanged(QStringList const&) () from /usr/lib/libkio.so.5
#14 0x00007fef7be21c20 in KDirListerCache::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkio.so.5
#15 0x00007fef78da9d3c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#16 0x00007fef7be2cf95 in OrgKdeKDirNotifyInterface::FilesChanged(QStringList const&) () from /usr/lib/libkio.so.5
#17 0x00007fef7be2d100 in OrgKdeKDirNotifyInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkio.so.5
#18 0x00007fef79c48ee4 in ?? () from /usr/lib/libQtDBus.so.4
#19 0x00007fef79c501ef in ?? () from /usr/lib/libQtDBus.so.4
#20 0x00007fef78da4059 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x00007fef7921607c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0x00007fef7921d34e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#23 0x00007fef7a543586 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#24 0x00007fef78d94bfc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#25 0x00007fef78d9580a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#26 0x00007fef78dbd583 in ?? () from /usr/lib/libQtCore.so.4
#27 0x00007fef74ad01fe in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#28 0x00007fef74ad3bb8 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#29 0x00007fef74ad3ce0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#30 0x00007fef78dbd123 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x00007fef792a914e in ?? () from /usr/lib/libQtGui.so.4
#32 0x00007fef78d93532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#33 0x00007fef78d93904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0x00007fef78d95ab9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#35 0x0000000000439505 in _start ()

Reported using DrKonqi