Bug 285325

Summary: amarok crashed when jumping to another audio file
Product: [Unmaintained] phonon-backend-gstreamer Reporter: Ronny Standtke <Ronny.Standtke>
Component: generalAssignee: Harald Sitter <sitter>
Status: RESOLVED UPSTREAM    
Severity: crash CC: martin.sandsmark, myriam, romain.perier, tdfischer
Priority: NOR    
Version First Reported In: 4.5.1   
Target Milestone: 4.6.1   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Ronny Standtke 2011-10-30 16:02:01 UTC 
Application: amarok (2.4.3)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-12-generic x86_64
Distribution: Ubuntu 11.04

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

While one audio file was playing, I double-clicked on another audio file in the playlist. Then amarok crashed with this backtrace.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
__lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
	in ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
[Current thread is 1 (Thread 0x7f1063c5c7c0 (LWP 27372))]

Thread 10 (Thread 0x7f10432e5700 (LWP 27376)):
#0  0x00007f105b123439 in g_main_context_query (context=0xfafd70, max_priority=2147483647, timeout=0x7f10432e4bb8, fds=0x7f10380008b0, n_fds=2) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:2829
#1  0x00007f105b12400a in g_main_context_iterate (context=0xfafd70, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3073
#2  0x00007f105b124639 in g_main_context_iteration (context=0xfafd70, may_block=1) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3154
#3  0x00007f1060d02446 in QEventDispatcherGlib::processEvents (this=0xeea7c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f1060cd6882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f1060cd6abc in QEventLoop::exec (this=0x7f10432e4cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f1060bed924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f1060cb8c2f in QInotifyFileSystemWatcherEngine::run (this=0xf80330) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f1060bf0175 in QThreadPrivate::start (arg=0xf80330) at thread/qthread_unix.cpp:320
#9  0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f105cbc6d8c in start_thread (arg=0x7f10432e5700) at pthread_create.c:304
#11 0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f10371c5700 (LWP 27378)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1060bf082b in wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f105e161704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12be070, th=0x12bf2d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f105e163d73 in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x12bf2d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f105e163d8c in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x12bf2d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f105e163d8c in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x12bf2d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f105e162b8f in ThreadWeaver::ThreadRunHelper::run (this=0x7f10371c4d20, parent=0x12be070, th=0x12bf2d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f105e162c1b in ThreadWeaver::Thread::run (this=0x12bf2d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f1060bf0175 in QThreadPrivate::start (arg=0x12bf2d0) at thread/qthread_unix.cpp:320
#10 0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007f105cbc6d8c in start_thread (arg=0x7f10371c5700) at pthread_create.c:304
#12 0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f1034787700 (LWP 27379)):
#0  0x00007f10603a4f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f105b124104 in g_main_context_poll (context=0x15876d0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3404
#2  g_main_context_iterate (context=0x15876d0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3086
#3  0x00007f105b124639 in g_main_context_iteration (context=0x15876d0, may_block=1) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3154
#4  0x00007f1060d02446 in QEventDispatcherGlib::processEvents (this=0x15874b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f1060cd6882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f1060cd6abc in QEventLoop::exec (this=0x7f1034786cd0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f1060bed924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007f1060cb8c2f in QInotifyFileSystemWatcherEngine::run (this=0x15c45d0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f1060bf0175 in QThreadPrivate::start (arg=0x15c45d0) at thread/qthread_unix.cpp:320
#10 0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007f105cbc6d8c in start_thread (arg=0x7f1034787700) at pthread_create.c:304
#12 0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f1033d69700 (LWP 27380)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1060bf082b in wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f105e161704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12be070, th=0x1620690) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f105e163d73 in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x1620690) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f105e163d8c in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x1620690) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f105e162b8f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1033d68d20, parent=0x12be070, th=0x1620690) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f105e162c1b in ThreadWeaver::Thread::run (this=0x1620690) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f1060bf0175 in QThreadPrivate::start (arg=0x1620690) at thread/qthread_unix.cpp:320
#9  0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f105cbc6d8c in start_thread (arg=0x7f1033d69700) at pthread_create.c:304
#11 0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f103335d700 (LWP 27381)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1060bf082b in wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f105e161704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12be070, th=0x15e0790) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f105e163d73 in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x15e0790) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f105e163d8c in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x15e0790) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f105e163d8c in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x15e0790) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f105e163d8c in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x15e0790) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f105e162b8f in ThreadWeaver::ThreadRunHelper::run (this=0x7f103335cd20, parent=0x12be070, th=0x15e0790) at ../../../threadweaver/Weaver/Thread.cpp:87
#9  0x00007f105e162c1b in ThreadWeaver::Thread::run (this=0x15e0790) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007f1060bf0175 in QThreadPrivate::start (arg=0x15e0790) at thread/qthread_unix.cpp:320
#11 0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007f105cbc6d8c in start_thread (arg=0x7f103335d700) at pthread_create.c:304
#13 0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f1032b5c700 (LWP 27382)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1060bf082b in wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x12be3b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f105e161704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x12be070, th=0x16259b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f105e163d73 in ThreadWeaver::WorkingHardState::applyForWork (this=0x12bef00, th=0x16259b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f105e162b8f in ThreadWeaver::ThreadRunHelper::run (this=0x7f1032b5bd20, parent=0x12be070, th=0x16259b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f105e162c1b in ThreadWeaver::Thread::run (this=0x16259b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1060bf0175 in QThreadPrivate::start (arg=0x16259b0) at thread/qthread_unix.cpp:320
#8  0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f105cbc6d8c in start_thread (arg=0x7f1032b5c700) at pthread_create.c:304
#10 0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f102076c700 (LWP 27409)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f105d1ad2a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f105d4c6180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f105d1ad2d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f105d4d4254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f105cbc6d8c in start_thread (arg=0x7f102076c700) at pthread_create.c:304
#5  0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f1026ffc700 (LWP 27431)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f104957b0b7 in gst_task_func (task=0x7f102c0254b0) at gsttask.c:303
#2  0x00007f105b14db16 in g_thread_pool_thread_proxy (data=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gthreadpool.c:319
#3  0x00007f105b14b3e4 in g_thread_create_proxy (data=0x7f1038049660) at /build/buildd/glib2.0-2.28.6/./glib/gthread.c:1897
#4  0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#5  0x00007f105cbc6d8c in start_thread (arg=0x7f1026ffc700) at pthread_create.c:304
#6  0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f1030e66700 (LWP 27439)):
[KCrash Handler]
#6  0x00007f10501aa59d in floor1_unpack (vi=<value optimized out>, opb=0x7f1030e659c0) at floor1.c:154
#7  0x00007f10501a9172 in _vorbis_unpack_books (vi=0x7f1038096298, vc=<value optimized out>, op=<value optimized out>) at info.c:301
#8  vorbis_synthesis_headerin (vi=0x7f1038096298, vc=<value optimized out>, op=<value optimized out>) at info.c:423
#9  0x00007f103045bdcf in vorbis_handle_header_packet (vd=0x7f1038096110, buffer=<value optimized out>) at gstvorbisdec.c:757
#10 vorbis_dec_decode_buffer (vd=0x7f1038096110, buffer=<value optimized out>) at gstvorbisdec.c:989
#11 0x00007f103045d6b3 in vorbis_dec_chain_forward (pad=<value optimized out>, buffer=0xac8580) at gstvorbisdec.c:1173
#12 vorbis_dec_chain (pad=<value optimized out>, buffer=0xac8580) at gstvorbisdec.c:1202
#13 0x00007f10495549c4 in gst_pad_push (pad=0x7f103808bb00, buffer=0xac8580) at gstpad.c:4665
#14 0x00007f103e22477e in gst_single_queue_push_one (pad=<value optimized out>) at gstmultiqueue.c:921
#15 gst_multi_queue_loop (pad=<value optimized out>) at gstmultiqueue.c:1101
#16 0x00007f104957af20 in gst_task_func (task=0x1d18aa0) at gsttask.c:318
#17 0x00007f105b14db16 in g_thread_pool_thread_proxy (data=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gthreadpool.c:319
#18 0x00007f105b14b3e4 in g_thread_create_proxy (data=0x180ae10) at /build/buildd/glib2.0-2.28.6/./glib/gthread.c:1897
#19 0x00007f1053293853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#20 0x00007f105cbc6d8c in start_thread (arg=0x7f1030e66700) at pthread_create.c:304
#21 0x00007f10603b204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#22 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f1063c5c7c0 (LWP 27372)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
#1  0x00007f105cbc95b4 in _L_lock_944 () from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f105cbc93ca in __pthread_mutex_lock (mutex=0x7f102c0199c8) at pthread_mutex_lock.c:61
#3  0x00007f105b14b818 in g_static_rec_mutex_lock (mutex=0x7f102c0199c0) at /build/buildd/glib2.0-2.28.6/./glib/gthread.c:1424
#4  0x00007f10495562b3 in gst_pad_pause_task (pad=0x7f103808bb00) at gstpad.c:5597
#5  0x00007f103e2229bd in gst_single_queue_flush (mq=0x7f102c00f2a0, sq=0xb48c20, flush=<value optimized out>) at gstmultiqueue.c:672
#6  0x00007f103e222b66 in gst_multi_queue_src_activate_push (pad=0x7f103808bb00, active=0) at gstmultiqueue.c:1378
#7  0x00007f1049553a3b in gst_pad_activate_push (pad=0x7f103808bb00, active=0) at gstpad.c:953
#8  0x00007f10495546f7 in gst_pad_set_active (pad=0x7f103808bb00, active=0) at gstpad.c:715
#9  0x00007f103e222131 in gst_multi_queue_release_pad (element=0x7f102c00f2a0, pad=0x7f103808b800) at gstmultiqueue.c:643
#10 0x00007f103dbde5f0 in gst_decode_group_free_internal (group=0xbc7840, hide=0) at gstdecodebin2.c:2485
#11 0x00007f103dbddfa0 in gst_decode_chain_free_internal (chain=0x7f102c015f30, hide=0) at gstdecodebin2.c:2290
#12 0x00007f103dbe1434 in gst_decode_chain_free (element=0xed4090, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstdecodebin2.c:2400
#13 gst_decode_bin_change_state (element=0xed4090, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstdecodebin2.c:3592
#14 0x00007f10495396cc in gst_element_change_state (element=0xed4090, transition=<value optimized out>) at gstelement.c:2651
#15 0x00007f104953a0b2 in gst_element_set_state_func (element=0xed4090, state=GST_STATE_READY) at gstelement.c:2607
#16 0x00007f104952745d in gst_bin_element_set_state (element=0xed2020, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstbin.c:2185
#17 gst_bin_change_state_func (element=0xed2020, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstbin.c:2484
#18 0x00007f10495581d4 in gst_pipeline_change_state (element=0xed2020, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstpipeline.c:482
#19 0x00007f10495396cc in gst_element_change_state (element=0xed2020, transition=<value optimized out>) at gstelement.c:2651
#20 0x00007f104953a0b2 in gst_element_set_state_func (element=0xed2020, state=GST_STATE_NULL) at gstelement.c:2607
#21 0x00007f1049802849 in Phonon::Gstreamer::MediaObject::setState (this=0xe37c30, newstate=<value optimized out>) at ../../gstreamer/mediaobject.cpp:803
#22 0x00007f1049805122 in Phonon::Gstreamer::MediaObject::loadingComplete (this=0xe37c30) at ../../gstreamer/mediaobject.cpp:1172
#23 0x00007f10498056c9 in Phonon::Gstreamer::MediaObject::handleStateMessage (this=0xe37c30, gstMessage=0xee8150) at ../../gstreamer/mediaobject.cpp:1581
#24 0x00007f10498088d6 in Phonon::Gstreamer::MediaObject::qt_metacall (this=0xe37c30, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x1af1700) at ./moc_mediaobject.cpp:193
#25 0x00007f1060ceb49a in QObject::event (this=0xe37c30, e=<value optimized out>) at kernel/qobject.cpp:1226
#26 0x00007f10616939f4 in QApplicationPrivate::notify_helper (this=0x8afdb0, receiver=0xe37c30, e=0x1aac3b0) at kernel/qapplication.cpp:4462
#27 0x00007f10616983ba in QApplication::notify (this=<value optimized out>, receiver=0xe37c30, e=0x1aac3b0) at kernel/qapplication.cpp:4341
#28 0x00007f1063669a76 in KApplication::notify (this=0x7fffdb8c47f0, receiver=0xe37c30, event=0x1aac3b0) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007f1060cd749c in QCoreApplication::notifyInternal (this=0x7fffdb8c47f0, receiver=0xe37c30, event=0x1aac3b0) at kernel/qcoreapplication.cpp:731
#30 0x00007f1060cdac25 in sendEvent (receiver=0x0, event_type=0, data=0x69db00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x69db00) at kernel/qcoreapplication.cpp:1372
#32 0x00007f1060d02253 in sendPostedEvents (s=0x8c54e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#33 postEventSourceDispatch (s=0x8c54e0) at kernel/qeventdispatcher_glib.cpp:277
#34 0x00007f105b123bcd in g_main_dispatch (context=0x884fe0) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:2440
#35 g_main_context_dispatch (context=0x884fe0) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3013
#36 0x00007f105b1243a8 in g_main_context_iterate (context=0x884fe0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3091
#37 0x00007f105b124639 in g_main_context_iteration (context=0x884fe0, may_block=1) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3154
#38 0x00007f1060d023ef in QEventDispatcherGlib::processEvents (this=0x69d2e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#39 0x00007f106173d4de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007f1060cd6882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007f1060cd6abc in QEventLoop::exec (this=0x7fffdb8c4770, flags=...) at kernel/qeventloop.cpp:201
#42 0x00007f1060cdaecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#43 0x000000000040ef0e in main (argc=2, argv=0x7fffdb8c6df8) at ../../src/main.cpp:289

Reported using DrKonqi
Comment 1 Myriam Schweingruber 2011-11-01 13:18:39 UTC 
The problem appears to be upstream in gstreamer, please report this there.
Comment 2 Ronny Standtke 2011-11-05 14:57:17 UTC 
Done:
https://bugzilla.gnome.org/show_bug.cgi?id=663455