Application that crashed: dolphin
Version of the application: 1.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I had 2 tabs open with local directories and tried to open a ssh connection to another machine using fish:// when it crashed

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[KCrash Handler]
#6  0xb66dc719 in QUrl::QUrl () from /usr/lib/libQtCore.so.4
#7  0xb72ff189 in KUrl::KUrl () from /usr/lib/libkdecore.so.5
#8  0xb7ded7ae in KFileItem::url () from /usr/lib/libkio.so.5
#9  0xb7ddc87f in KDirModel::indexForItem () from /usr/lib/libkio.so.5
#10 0xb7cbff82 in KFilePreviewGenerator::Private::orderItems () from /usr/lib/libkfile.so.4
#11 0xb7cc3be3 in KFilePreviewGenerator::Private::updateIcons () from /usr/lib/libkfile.so.4
#12 0xb7cc3e58 in KFilePreviewGenerator::Private::delayedIconUpdate () from /usr/lib/libkfile.so.4
#13 0xb7cc4efe in KFilePreviewGenerator::qt_metacall () from /usr/lib/libkfile.so.4
#14 0xb673e1b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb673ee42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb677a687 in QTimer::timeout () from /usr/lib/libQtCore.so.4
#17 0xb67445ce in QTimer::timerEvent () from /usr/lib/libQtCore.so.4
#18 0xb673916f in QObject::event () from /usr/lib/libQtCore.so.4
#19 0xb693fd3c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#20 0xb694803e in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb768685d in KApplication::notify () from /usr/lib/libkdeui.so.5
#22 0xb6728bcb in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#23 0xb6757d51 in ?? () from /usr/lib/libQtCore.so.4
#24 0xb67543a0 in ?? () from /usr/lib/libQtCore.so.4
#25 0xb5ea4b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0xb5ea80eb in ?? () from /usr/lib/libglib-2.0.so.0
#27 0xb5ea8268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0xb67542f8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#29 0xb69e1a75 in ?? () from /usr/lib/libQtGui.so.4
#30 0xb67271fa in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#31 0xb6727642 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#32 0xb7e4015b in KIO::NetAccess::enter_loop () from /usr/lib/libkio.so.5
#33 0xb7e4035c in KIO::NetAccess::statInternal () from /usr/lib/libkio.so.5
#34 0xb7e4100b in KIO::NetAccess::stat () from /usr/lib/libkio.so.5
#35 0xb7e4108b in KIO::NetAccess::mostLocalUrl () from /usr/lib/libkio.so.5
#36 0x080a7a01 in _start ()

Reported using DrKonqi