Application: amarok (2.3.2)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-23-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:

When the screensaver activates long enough to force a login, after logging back in the Amarok window is empty/blank and unresponsive. If I use the force quit tool then I have to manually kill the process. If I click on the 'X' it gives the wait/force dialog and clicking force will close it.

This was only observed after logging back in from the screensaver and it happened every time for about a week. Eventually it opened Crash Reporting Assistant on one such time and the last few times the screensaver/pw prompt have come up it HASN'T been frozen. I have no knowledge of what changes (updates) I made that could have caused it to start and then later stop crashing.

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f57ce81f840 (LWP 703))]

Thread 5 (Thread 0x7f57b9cb8700 (LWP 704)):
#0  0x00007f57cb612203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f57c5340009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f57c53407b5 in g_main_loop_run () from /lib/libglib-2.0.so.0
#3  0x00007f57bc73e3c4 in ?? () from /usr/lib/libgio-2.0.so.0
#4  0x00007f57c53657e4 in ?? () from /lib/libglib-2.0.so.0
#5  0x00007f57c1356953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f57c9118971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#7  0x00007f57cb61e92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f57a3829700 (LWP 705)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:212
#1  0x00007f57abc4b0d1 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f57c1356953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f57c9118971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#4  0x00007f57cb61e92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f57a3028700 (LWP 706)):
#0  0x00007fffe9509904 in clock_gettime ()
#1  0x00007f57c3d910bf in clock_gettime (clock_id=1, tp=0x7f57a3027920) at ../sysdeps/unix/clock_gettime.c:100
#2  0x00007f57cbea194f in do_gettime () at tools/qelapsedtimer_unix.cpp:105
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:119
#4  0x00007f57cbf6e1fd in QTimerInfoList::updateCurrentTime (this=0x1) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007f57cbf6e225 in QTimerInfoList::timerWait (this=0x1, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007f57cbf6c3dd in timerSourcePrepareHelper (src=<value optimized out>, timeout=0x7f57a3027a5c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f57cbf6c485 in timerSourcePrepare (source=0x1, timeout=0x7f57a3027920) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f57c533fa11 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#9  0x00007f57c533fe78 in ?? () from /lib/libglib-2.0.so.0
#10 0x00007f57c534045c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#11 0x00007f57cbf6c1e6 in QEventDispatcherGlib::processEvents (this=0x127b750, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#12 0x00007f57cbf3ea02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#13 0x00007f57cbf3edec in QEventLoop::exec (this=0x7f57a3027bf0, flags=) at kernel/qeventloop.cpp:201
#14 0x00007f57cbe492fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#15 0x00007f57abea72b0 in Phonon::Xine::XineThread::run (this=0x127b980) at ../../xine/xinethread.cpp:143
#16 0x00007f57cbe4c27e in QThreadPrivate::start (arg=0x127b980) at thread/qthread_unix.cpp:266
#17 0x00007f57c1356953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#18 0x00007f57c9118971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#19 0x00007f57cb61e92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f57a2622700 (LWP 707)):
#0  __pthread_mutex_lock_full (mutex=0x127efb0) at pthread_mutex_lock.c:303
#1  0x00007f57beca325e in pa_mutex_lock () from /usr/lib/libpulsecommon-0.9.21.so
#2  0x00007f57c3546201 in ?? () from /usr/lib/libpulse.so.0
#3  0x00007f57beca3fb8 in ?? () from /usr/lib/libpulsecommon-0.9.21.so
#4  0x00007f57c1356953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#5  0x00007f57c9118971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#6  0x00007f57cb61e92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f57ce81f840 (LWP 703)):
[KCrash Handler]
#6  0x00007f57c13575fd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#7  0x00007f57be57c84d in ?? () from /usr/lib/nvidia-current/tls/libnvidia-tls.so.260.19.06
#8  0x00007f57bec988eb in pa_shm_free () from /usr/lib/libpulsecommon-0.9.21.so
#9  0x00007f57bec98c14 in pa_shm_cleanup () from /usr/lib/libpulsecommon-0.9.21.so
#10 0x00007f57bec98dc5 in pa_shm_create_rw () from /usr/lib/libpulsecommon-0.9.21.so
#11 0x00007f57bec8d1c6 in pa_mempool_new () from /usr/lib/libpulsecommon-0.9.21.so
#12 0x00007f57c35286ab in pa_context_new_with_proplist () from /usr/lib/libpulse.so.0
#13 0x00007f57a2624b07 in ?? () from /usr/lib/xine/plugins/1.28/xineplug_ao_out_pulseaudio.so
#14 0x00007f57a2625d71 in ?? () from /usr/lib/xine/plugins/1.28/xineplug_ao_out_pulseaudio.so
#15 0x00007f57abc53680 in xine_open_audio_driver () from /usr/lib/libxine.so.1
#16 0x00007f57abec0a3a in Phonon::Xine::AudioOutput::createPort (this=<value optimized out>, deviceDesc=<value optimized out>) at ../../xine/audiooutput.cpp:139
#17 0x00007f57abec1b41 in Phonon::Xine::AudioOutput::xineEngineChanged (this=0x7f579de21000) at ../../xine/audiooutput.cpp:314
#18 0x00007f57abea539b in Phonon::Xine::SinkNode::downstreamEvent (this=0x11f2cf0, e=0x127dc40) at ../../xine/sinknode.cpp:139
#19 0x00007f57abea6b91 in Phonon::Xine::SourceNode::downstreamEvent (this=<value optimized out>, e=0x127dc40) at ../../xine/sourcenode.cpp:111
#20 0x00007f57abec89d7 in Phonon::Xine::MediaObject::upstreamEvent (this=0x127bd20, e=0x127dc20) at ../../xine/mediaobject.cpp:675
#21 0x00007f57abed281e in Phonon::Xine::Backend::endConnectionChange (this=<value optimized out>, nodes=<value optimized out>) at ../../xine/backend.cpp:470
#22 0x00007f57c8736a3a in ~ConnectionTransaction (this=<value optimized out>, disconnections=<value optimized out>, connections=...) at ../../phonon/path.cpp:46
#23 Phonon::PathPrivate::executeTransaction (this=<value optimized out>, disconnections=<value optimized out>, connections=...) at ../../phonon/path.cpp:354
#24 0x00007f57c8737a79 in Phonon::Path::reconnect (this=0x7fffe94c0c20, source=0x11e2470, sink=0x11e1d60) at ../../phonon/path.cpp:197
#25 0x00007f57c8737b9d in Phonon::createPath (source=0x11e2470, sink=0x11e1d60) at ../../phonon/path.cpp:436
#26 0x00007f57cda1a379 in EngineController::initializePhonon (this=0x11e12e0) at ../../src/EngineController.cpp:133
#27 0x00007f57cda1f22d in EngineController::qt_metacall (this=0x11e12e0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe94c0da0) at ./EngineController.moc:155
#28 0x00007f57cbf48bf9 in QMetaMethod::invoke (this=0x7fffe94c1050, object=0x11e12e0, connectionType=<value optimized out>, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1575
#29 0x00007f57cbf4a306 in QMetaObject::invokeMethod (obj=0x11e12e0, member=<value optimized out>, type=<value optimized out>, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1148
#30 0x00007f57cdb30055 in invokeMethod (this=<value optimized out>) at /usr/include/qt4/QtCore/qobjectdefs.h:408
#31 Amarok::DefaultApplicationController::initEngineController (this=<value optimized out>) at ../../src/statemanagement/DefaultApplicationController.cpp:92
#32 0x00007f57cdb300e1 in Amarok::DefaultApplicationController::start (this=0x11d2200) at ../../src/statemanagement/DefaultApplicationController.cpp:48
#33 0x00007f57cda061e9 in App::continueInit (this=0x7fffe94c1b00) at ../../src/App.cpp:652
#34 0x00007f57cda081d3 in App::App (this=0x7fffe94c1b00) at ../../src/App.cpp:216
#35 0x00000000004081e0 in main (argc=<value optimized out>, argv=0x7fffe94c3a68) at ../../src/main.cpp:235

Reported using DrKonqi