Application: konqueror (4.5.3 (KDE 4.5.3))
KDE Platform Version: 4.5.3 (KDE 4.5.3) (Compiled from sources)
Qt Version: 4.7.1
Operating System: Linux 2.6.36-tuxonice x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
Akregator crashes when I click this link: http://ptrace.fefe.de/rainald-becker.html
Same goes for konqueror.

If you need more debug output, I could compile konqueror (or other stuff) with debug enabled.

The crash can be reproduced every time.

-- Backtrace:
Application: Konqueror (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f6cdc860760 (LWP 12015))]

Thread 11 (Thread 0x7f6cc7f3f710 (LWP 12024)):
#0  0x00007f6cdb1c1999 in pthread_cond_timedwait () from /lib/libpthread.so.0
#1  0x00007f6cdb44b991 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f6cdb441b3f in QThreadPoolThread::run() () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f6cdb44b33e in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#5  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 10 (Thread 0x7f6cbc4c2710 (LWP 12076)):
#0  0x00007f6cdb1c1999 in pthread_cond_timedwait () from /lib/libpthread.so.0
#1  0x00007f6cdb44b991 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f6cdb441b3f in QThreadPoolThread::run() () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f6cdb44b33e in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#5  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 9 (Thread 0x7f6cb6339710 (LWP 12083)):
#0  0x00007f6cdb1c1999 in pthread_cond_timedwait () from /lib/libpthread.so.0
#1  0x00007f6cbb340ce9 in metronom_sync_loop () from /usr/lib64/libxine.so.1
#2  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#3  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 8 (Thread 0x7f6cb4efd710 (LWP 12091)):
#0  0x00007f6cd9f9dd53 in select () from /lib/libc.so.6
#1  0x00007f6cbb366124 in xine_usec_sleep () from /usr/lib64/libxine.so.1
#2  0x00007f6cbb34d4f4 in video_out_loop () from /usr/lib64/libxine.so.1
#3  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#4  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 7 (Thread 0x7f6cb46fc710 (LWP 12092)):
[KCrash Handler]
#6  0x00007f6cbb35309f in xine_event_dispose_queue () from /usr/lib64/libxine.so.1
#7  0x00007f6caff6b774 in open_plugin () from /usr/lib64/xine/plugins/1.29/xineplug_dmx_matroska.so
#8  0x00007f6cbb34509d in probe_demux () from /usr/lib64/libxine.so.1
#9  0x00007f6cbb33f245 in xine_open () from /usr/lib64/libxine.so.1
#10 0x00007f6cbb59e96d in Phonon::Xine::XineStream::xineOpen(Phonon::State) () from /usr/lib64/kde4/plugins/phonon_backend/phonon_xine.so
#11 0x00007f6cbb5a15b8 in Phonon::Xine::XineStream::event(QEvent*) () from /usr/lib64/kde4/plugins/phonon_backend/phonon_xine.so
#12 0x00007f6cda70ebe4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#13 0x00007f6cda71362a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#14 0x00007f6cdc285cb6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#15 0x00007f6cdb530ac3 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007f6cdb53420c in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt4/libQtCore.so.4
#17 0x00007f6cdb55af03 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4
#18 0x00007f6cd7286a52 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0x00007f6cd7287200 in g_main_context_iterate.clone.5 () from /usr/lib/libglib-2.0.so.0
#20 0x00007f6cd728749d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#21 0x00007f6cdb55b08f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#22 0x00007f6cdb52fed2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#23 0x00007f6cdb530114 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#24 0x00007f6cdb448bc4 in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4
#25 0x00007f6cbb59a2fe in Phonon::Xine::XineThread::run() () from /usr/lib64/kde4/plugins/phonon_backend/phonon_xine.so
#26 0x00007f6cdb44b33e in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#27 0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#28 0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 6 (Thread 0x7f6cb3cf1710 (LWP 12174)):
#0  0x00007f6cd9f9b7f3 in poll () from /lib/libc.so.6
#1  0x00007f6cb3cf6a75 in ao_alsa_handle_event_thread () from /usr/lib64/xine/plugins/1.29/xineplug_ao_out_alsa.so
#2  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#3  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 5 (Thread 0x7f6cb34f0710 (LWP 12175)):
#0  0x00007f6cdb1c162c in pthread_cond_wait () from /lib/libpthread.so.0
#1  0x00007f6cbb34ee03 in fifo_peek_int () from /usr/lib64/libxine.so.1
#2  0x00007f6cbb350aeb in ao_loop () from /usr/lib64/libxine.so.1
#3  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#4  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 4 (Thread 0x7f6caed2c710 (LWP 12176)):
#0  0x00007f6cdb1c162c in pthread_cond_wait () from /lib/libpthread.so.0
#1  0x00007f6cbb344303 in fifo_buffer_get () from /usr/lib64/libxine.so.1
#2  0x00007f6cbb349c67 in video_decoder_loop () from /usr/lib64/libxine.so.1
#3  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#4  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 3 (Thread 0x7f6cae35e710 (LWP 12177)):
#0  0x00007f6cdb1c162c in pthread_cond_wait () from /lib/libpthread.so.0
#1  0x00007f6cbb344303 in fifo_buffer_get () from /usr/lib64/libxine.so.1
#2  0x00007f6cbb34ad47 in audio_decoder_loop () from /usr/lib64/libxine.so.1
#3  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#4  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 2 (Thread 0x7f6cadb5d710 (LWP 12178)):
#0  0x00007f6cdb1c162c in pthread_cond_wait () from /lib/libpthread.so.0
#1  0x00007f6cbb352d9b in xine_event_wait () from /usr/lib64/libxine.so.1
#2  0x00007f6cbb352e3e in listener_loop () from /usr/lib64/libxine.so.1
#3  0x00007f6cdb1bcd5c in start_thread () from /lib/libpthread.so.0
#4  0x00007f6cd9fa45ed in clone () from /lib/libc.so.6

Thread 1 (Thread 0x7f6cdc860760 (LWP 12015)):
#0  0x00007f6cd9f9b7f3 in poll () from /lib/libc.so.6
#1  0x00007f6cd84b0e4a in _xcb_conn_wait () from /usr/lib/libxcb.so.1
#2  0x00007f6cd84b2457 in xcb_wait_for_reply () from /usr/lib/libxcb.so.1
#3  0x00007f6cdbd65195 in _XReply () from /usr/lib/libX11.so.6
#4  0x00007f6cdbd4a1d6 in XGetWindowProperty () from /usr/lib/libX11.so.6
#5  0x00007f6cdc3b17b3 in NETWinInfo::update(unsigned long const*) () from /usr/lib/libkdeui.so.5
#6  0x00007f6cdc3a93be in KWindowInfo::KWindowInfo(unsigned long, unsigned long, unsigned long) () from /usr/lib/libkdeui.so.5
#7  0x00007f6cdc3a4ac9 in KWindowSystem::windowInfo(unsigned long, unsigned long, unsigned long) () from /usr/lib/libkdeui.so.5
#8  0x00007f6cdc34f714 in KMainWindow::saveWindowSize(KConfigGroup const&) const () from /usr/lib/libkdeui.so.5
#9  0x00007f6cdc352825 in KMainWindow::saveMainWindowSettings(KConfigGroup const&) () from /usr/lib/libkdeui.so.5
#10 0x00007f6cdc35289e in KMainWindow::saveAutoSaveSettings() () from /usr/lib/libkdeui.so.5
#11 0x00007f6cdc352d38 in KMainWindow::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#12 0x00007f6cdc3867b5 in KXmlGuiWindow::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#13 0x00007f6cd3320710 in KParts::MainWindow::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkparts.so.4
#14 0x00007f6ccecced99 in KonqMainWindow::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeinit4_konqueror.so
#15 0x00007f6cdb544e77 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007f6cdb5446b1 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#17 0x00007f6cda70ebe4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#18 0x00007f6cda71362a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#19 0x00007f6cdc285cb6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x00007f6cdb530ac3 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#21 0x00007f6cdb55d84e in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4
#22 0x00007f6cdb55a9c4 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4
#23 0x00007f6cd7286a52 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0x00007f6cd7287200 in g_main_context_iterate.clone.5 () from /usr/lib/libglib-2.0.so.0
#25 0x00007f6cd728749d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007f6cdb55b08f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#27 0x00007f6cda7b257e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#28 0x00007f6cdb52fed2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#29 0x00007f6cdb530114 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#30 0x00007f6cdb5344b3 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#31 0x00007f6ccecec229 in kdemain () from /usr/lib64/libkdeinit4_konqueror.so
#32 0x00000000004074f3 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#33 0x0000000000408058 in handle_launcher_request ()
#34 0x00000000004087b8 in handle_requests(int) ()
#35 0x000000000040932a in main ()

Reported using DrKonqi