Application: k3b (2.0.2)
KDE Platform Version: 4.5.5 (KDE 4.5.5)
Qt Version: 4.7.1
Operating System: FreeBSD 8.2-RELEASE i386
Distribution (Platform): FreeBSD Ports

-- Information about the crash:
install libdvdcss open k3b right click hit rip AU location?
freebsd 8.2 release kde4 added as packages k3b compiled from source port

The crash can be reproduced every time.

-- Backtrace:
Application: K3b (k3b), signal: Segmentation fault: 11
[Current thread is 1 (Thread 2d3fb0c0 (LWP 100305))]

Thread 3 (Thread 2d101140 (LWP 100334)):
[KCrash Handler]
#7  0x2b48b319 in KTempDir::name () from /usr/local/kde4/lib/libkdecore.so.7
#8  0x08239d3e in KConfigGroup::readCheck<int> ()
#9  0x0823a62f in KConfigGroup::readCheck<int> ()
#10 0x2b893dd3 in QMetaObject::metacall () from /usr/local/lib/qt4/libQtCore.so.4
#11 0x2b8a45af in QMetaObject::activate () from /usr/local/lib/qt4/libQtCore.so.4
#12 0x283d7239 in K3bQProcess::finished () from /usr/local/kde4/lib/libk3blib.so.6
#13 0x283dc91f in K3bQProcess::writeData () from /usr/local/kde4/lib/libk3blib.so.6
#14 0x283dc9a6 in K3bQProcess::writeData () from /usr/local/kde4/lib/libk3blib.so.6
#15 0x283e0ee3 in K3bKProcess::~K3bKProcess () from /usr/local/kde4/lib/libk3blib.so.6
#16 0x283d7e8b in K3bQProcess::waitForFinished () from /usr/local/kde4/lib/libk3blib.so.6
#17 0x283d80f8 in K3bQProcess::~K3bQProcess () from /usr/local/kde4/lib/libk3blib.so.6
#18 0x283de8c9 in K3bKProcess::~K3bKProcess () from /usr/local/kde4/lib/libk3blib.so.6
#19 0x283d594b in K3b::Process::~Process () from /usr/local/kde4/lib/libk3blib.so.6
#20 0x2b89ecb5 in qDeleteInEventHandler () from /usr/local/lib/qt4/libQtCore.so.4
#21 0x2b8a046e in QObject::event () from /usr/local/lib/qt4/libQtCore.so.4
#22 0x2bc382fc in QApplicationPrivate::notify_helper () from /usr/local/lib/qt4/libQtGui.so.4
#23 0x2bc3f154 in QApplication::notify () from /usr/local/lib/qt4/libQtGui.so.4
#24 0x2af1ba93 in KApplication::notify () from /usr/local/kde4/lib/libkdeui.so.7
#25 0x2b88d57b in QCoreApplication::notifyInternal () from /usr/local/lib/qt4/libQtCore.so.4
#26 0x2b88e80f in QCoreApplicationPrivate::sendPostedEvents () from /usr/local/lib/qt4/libQtCore.so.4
#27 0x2b88ea2d in QCoreApplication::sendPostedEvents () from /usr/local/lib/qt4/libQtCore.so.4
#28 0x2b8bd774 in postEventSourceDispatch () from /usr/local/lib/qt4/libQtCore.so.4
#29 0x2cd99969 in g_main_context_dispatch () from /usr/local/lib/libglib-2.0.so.0
#30 0x2cd9cee6 in g_main_context_prepare () from /usr/local/lib/libglib-2.0.so.0
#31 0x2cd9d39c in g_main_context_iteration () from /usr/local/lib/libglib-2.0.so.0
#32 0x2b8bdb9b in QEventDispatcherGlib::processEvents () from /usr/local/lib/qt4/libQtCore.so.4
#33 0x2bcf7fe5 in QGuiEventDispatcherGlib::processEvents () from /usr/local/lib/qt4/libQtGui.so.4
#34 0x2b88c753 in QEventLoop::processEvents () from /usr/local/lib/qt4/libQtCore.so.4
#35 0x2b88c9ea in QEventLoop::exec () from /usr/local/lib/qt4/libQtCore.so.4
#36 0x2b88eaf6 in QCoreApplication::exec () from /usr/local/lib/qt4/libQtCore.so.4
#37 0x2bc37907 in QApplication::exec () from /usr/local/lib/qt4/libQtGui.so.4
#38 0x081c7a0e in KConfigGroup::readEntry<bool> ()
#39 0x0807f759 in ?? ()
#40 0x00000001 in ?? ()
#41 0xbfbfe80c in ?? ()
#42 0xbfbfe814 in ?? ()
#43 0x00000000 in ?? ()
#44 0x28282fc0 in dlclose () from /libexec/ld-elf.so.1
#45 0x00000001 in ?? ()

Thread 2 (Thread 2d3fc9c0 (LWP 100303)):
#0  0x2c6f72f7 in __error () from /lib/libthr.so.3
#1  0x2c6f6ed8 in __error () from /lib/libthr.so.3
#2  0x30c5b620 in ?? ()
#3  0x00000008 in ?? ()
#4  0x00000001 in ?? ()
#5  0x30c5b600 in ?? ()
#6  0xbf7fce8c in ?? ()
#7  0x2c7fdb58 in ?? () from /lib/libc.so.7
#8  0x30bf1e00 in ?? ()
#9  0x2c6f583f in pthread_setcancelstate () from /lib/libthr.so.3
#10 0x2c6f5100 in pthread_cond_signal () from /lib/libthr.so.3
#11 0x2b78252e in thread_sleep () from /usr/local/lib/qt4/libQtCore.so.4
#12 0x2b7826b5 in QThread::sleep () from /usr/local/lib/qt4/libQtCore.so.4
#13 0x283d0251 in K3b::MediaCache::PollThread::run () from /usr/local/kde4/lib/libk3blib.so.6
#14 0x2b782e08 in QThreadPrivate::start () from /usr/local/lib/qt4/libQtCore.so.4
#15 0x2c6ec73f in pthread_getprio () from /lib/libthr.so.3
#16 0x00000000 in ?? ()

Thread 1 (Thread 2d3fb0c0 (LWP 100305)):
#0  0x2c7cea9b in kevent () from /lib/libc.so.7
#1  0x2b86dc68 in QKqueueFileSystemWatcherEngine::run () from /usr/local/lib/qt4/libQtCore.so.4
#2  0x2b782e08 in QThreadPrivate::start () from /usr/local/lib/qt4/libQtCore.so.4
#3  0x2c6ec73f in pthread_getprio () from /lib/libthr.so.3
#4  0x00000000 in ?? ()

Reported using DrKonqi