Application that crashed: okular
Version of the application: 0.9.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
is not the first time that happen  sorry for my english im french 

 -- Backtrace:
Application: Okular (okular), signal: Segmentation fault
[KCrash Handler]
#6  0x003acd27 in KIO::Connection::suspended() const () from /usr/lib/libkio.so.5
#7  0x004b0a13 in KIO::SlaveInterface::dispatch() () from /usr/lib/libkio.so.5
#8  0x004a2aea in KIO::Slave::gotInput() () from /usr/lib/libkio.so.5
#9  0x004a4ee3 in KIO::Slave::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkio.so.5
#10 0x009e3263 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#11 0x009e3ec2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#12 0x003acf97 in KIO::Connection::readyRead() () from /usr/lib/libkio.so.5
#13 0x003aed5e in ?? () from /usr/lib/libkio.so.5
#14 0x003aee8e in KIO::Connection::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkio.so.5
#15 0x009dbf0b in QMetaCallEvent::placeMetaCall(QObject*) () from /usr/lib/libQtCore.so.4
#16 0x009dd5fe in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x01002f54 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x0100a67c in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00d22bfa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x009cd6cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x009ce2b2 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#22 0x009ce47d in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#23 0x009f83ff in ?? () from /usr/lib/libQtCore.so.4
#24 0x02a24e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0x02a28730 in ?? () from /lib/libglib-2.0.so.0
#26 0x02a28863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0x009f802c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#28 0x010a3be5 in ?? () from /usr/lib/libQtGui.so.4
#29 0x009cbc79 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x009cc0ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x009ce53f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#32 0x01002dd7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#33 0x0804eec9 in _start ()

Reported using DrKonqi