Bug 301218 - Amarok playback freezes frequently during random play of locally stored ogg and mp3 files.
Summary: Amarok playback freezes frequently during random play of locally stored ogg a...
Status: RESOLVED DUPLICATE of bug 299654
Alias: None
Product: amarok
Classification: Applications
Component: Playback (show other bugs)
Version: 2.5.0
Platform: Ubuntu Linux
: NOR normal
Target Milestone: 2.6
Assignee: Amarok Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-06-05 14:21 UTC by Steve Murphy
Modified: 2012-06-15 07:32 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:

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Description Steve Murphy 2012-06-05 14:21:58 UTC 
Quite frequently, but not all the time, Amarok will just freeze while playing an mp3 or ogg file (In random mode).Usually, the progress bar will display 0:02 or 0:03 seconds into a file. I'll get silence for several minutes, and usually, it will start playing again. The Lyrics are showing up for a song, It will usually randomly come back to life, usually in the middle of the next file, perhaps several songs later. 

I can kick it back into action by double-clicking on the song currently highlighted.

Running on Ubuntu 12.04; 6-core amd processor; 8 gb of main mem. System not really loaded at all. Hardly any core is above 10%. Almost all hover around 2-5%

Ubuntu 12.04 uses PulseAudio, if that makes any diff.



Reproducible: Always

Steps to Reproduce:
1. Random tracks playback Couple of hundred files in the playlist, mix of ogg and mp3.
2. Hit start and enjoy the music for anywhere from 15 min to 1 hour, and then experience the freezing!
3.



While it was "stuck", I got into gdb and attached, and got a backtrace. 

(gdb) thread apply all bt

Thread 24 (Thread 0x7fb29a76e700 (LWP 15405)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2b127bff6 in g_main_context_poll (n_fds=1, fds=0x7fb294001100, timeout=-1, context=0x20c7be0, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x20c7be0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#3  g_main_context_iterate (context=0x20c7be0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007fb2b127c45a in g_main_loop_run (loop=0x7fb2940010e0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
#5  0x00007fb29a77398b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#6  0x00007fb2b129d9a5 in g_thread_proxy (data=0x20c11e0) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#7  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007fb2b2d99e9a in start_thread (arg=0x7fb29a76e700) at pthread_create.c:308
#9  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 23 (Thread 0x7fb299b62700 (LWP 15406)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2b127bff6 in g_main_context_poll (n_fds=3, fds=0x7fb28c0010e0, timeout=-1, context=0x7fb294010320, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fb294010320, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#3  g_main_context_iterate (context=0x7fb294010320, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007fb2b127c45a in g_main_loop_run (loop=0x7fb2940102d0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
#5  0x00007fb2a10652c6 in gdbus_shared_thread_func (user_data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gio/gdbusprivate.c:277
#6  0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb29400c540) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#7  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007fb2b2d99e9a in start_thread (arg=0x7fb299b62700) at pthread_create.c:308
#9  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 22 (Thread 0x7fb27587f700 (LWP 15412)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2b127bff6 in g_main_context_poll (n_fds=2, fds=0x7fb270001c50, timeout=-1, context=0x7fb270000a00, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fb270000a00, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#3  g_main_context_iterate (context=0x7fb270000a00, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007fb2b127c124 in g_main_context_iteration (context=0x7fb270000a00, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#5  0x00007fb2b7010426 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007fb2b6fdfc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fb2b6fdfed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007fb2b6edefa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fb2b6fbf9ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007fb2b2d99e9a in start_thread (arg=0x7fb27587f700) at pthread_create.c:308
#13 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 21 (Thread 0x7fb26f4cf700 (LWP 15413)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2b127bff6 in g_main_context_poll (n_fds=1, fds=0x7fb2680017e0, timeout=9999, context=0x7fb2680009c0, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fb2680009c0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#3  g_main_context_iterate (context=0x7fb2680009c0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007fb2b127c124 in g_main_context_iteration (context=0x7fb2680009c0, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#5  0x00007fb2b70103bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007fb2b6fdfc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fb2b6fdfed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007fb2b6edefa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
---Type <return> to continue, or q <return> to quit---
#9  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007fb2b2d99e9a in start_thread (arg=0x7fb26f4cf700) at pthread_create.c:308
#12 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 20 (Thread 0x7fb26e02f700 (LWP 15414)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2b127bff6 in g_main_context_poll (n_fds=1, fds=0x7fb2600019b0, timeout=-1, context=0x7fb2600009c0, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fb2600009c0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#3  g_main_context_iterate (context=0x7fb2600009c0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007fb2b127c124 in g_main_context_iteration (context=0x7fb2600009c0, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#5  0x00007fb2b7010426 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007fb2b6fdfc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fb2b6fdfed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007fb2b6edefa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007fb2b2d99e9a in start_thread (arg=0x7fb26e02f700) at pthread_create.c:308
#12 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 19 (Thread 0x7fb26cc22700 (LWP 15416)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b6ee24db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fb2b432d0eb in ?? () from /usr/lib/libthreadweaver.so.4
#3  0x00007fb2b432f9db in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007fb2b432f9f4 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007fb2b432f9f4 in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x00007fb2b432e84f in ?? () from /usr/lib/libthreadweaver.so.4
#7  0x00007fb2b432e8db in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#8  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fb2b2d99e9a in start_thread (arg=0x7fb26cc22700) at pthread_create.c:308
#11 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 18 (Thread 0x7fb25f7be700 (LWP 15421)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b6ee24db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fb2b432d0eb in ?? () from /usr/lib/libthreadweaver.so.4
#3  0x00007fb2b432f9db in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007fb2b432e84f in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007fb2b432e8db in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#6  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007fb2b2d99e9a in start_thread (arg=0x7fb25f7be700) at pthread_create.c:308
#9  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7fb25efbd700 (LWP 15422)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b6ee24db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fb2b432d0eb in ?? () from /usr/lib/libthreadweaver.so.4
---Type <return> to continue, or q <return> to quit---
#3  0x00007fb2b432f9db in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007fb2b432e84f in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007fb2b432e8db in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#6  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007fb2b2d99e9a in start_thread (arg=0x7fb25efbd700) at pthread_create.c:308
#9  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7fb25e7bc700 (LWP 15423)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b6ee24db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fb2b432d0eb in ?? () from /usr/lib/libthreadweaver.so.4
#3  0x00007fb2b432f9db in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007fb2b432f9f4 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007fb2b432f9f4 in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x00007fb2b432f9f4 in ?? () from /usr/lib/libthreadweaver.so.4
#7  0x00007fb2b432e84f in ?? () from /usr/lib/libthreadweaver.so.4
#8  0x00007fb2b432e8db in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#9  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007fb2b2d99e9a in start_thread (arg=0x7fb25e7bc700) at pthread_create.c:308
#12 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7fb25d97a700 (LWP 15424)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2adeb7dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb2adeb7f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fb2b2d99e9a in start_thread (arg=0x7fb25d97a700) at pthread_create.c:308
#5  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7fb24604d700 (LWP 15440)):
#0  0x00007fb2b667e823 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fb2b6fbf06f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fb2b2d99e9a in start_thread (arg=0x7fb24604d700) at pthread_create.c:308
#5  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7fb24584c700 (LWP 15442)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b3373222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fb2b3373259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fb2b2d99e9a in start_thread (arg=0x7fb24584c700) at pthread_create.c:308
#5  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7fb23c9fc700 (LWP 15470)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
---Type <return> to continue, or q <return> to quit---
#1  0x00007fb2b12b77ef in g_cond_wait (cond=0x7fb1c000bab0, mutex=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:746
#2  0x00007fb2a8f28f7c in gst_task_func (task=0x7fb1c0043080) at gsttask.c:312
#3  0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#4  0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb290003540) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#5  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007fb2b2d99e9a in start_thread (arg=0x7fb23c9fc700) at pthread_create.c:308
#7  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7fb237fff700 (LWP 15471)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:140
#1  0x00007fb2aead9980 in pa_threaded_mainloop_wait () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fb281a76f1b in gst_pulseringbuffer_commit (buf=0x2720220, sample=0x7fb237ffe500, data=0x7fb22c0656b0 "", in_samples=1024, out_samples=1024, accum=0x7fb237ffe53c) at pulsesink.c:1510
#3  0x00007fb28185378e in gst_base_audio_sink_render (bsink=0x24debf0, buf=<optimized out>) at gstbaseaudiosink.c:1873
#4  0x00007fb2a91ac0cb in gst_base_sink_render_object (basesink=0x24debf0, obj_type=<optimized out>, obj=0x7fb238102b20, pad=<optimized out>) at gstbasesink.c:3014
#5  0x00007fb2a91ae7af in gst_base_sink_queue_object_unlocked (basesink=0x24debf0, obj_type=2 '\002', obj=0x7fb238102b20, prerollable=<optimized out>, pad=<optimized out>) at gstbasesink.c:3295
#6  0x00007fb2a91aeb17 in gst_base_sink_chain_unlocked (basesink=0x24debf0, obj_type=2 '\002', obj=0x7fb238102b20, pad=<optimized out>) at gstbasesink.c:3677
#7  0x00007fb2a91aeed8 in gst_base_sink_chain_main (basesink=0x24debf0, pad=0x21c0810, obj_type=2 '\002', obj=0x7fb238102b20) at gstbasesink.c:3715
#8  0x00007fb2a8f02bfa in gst_pad_push (pad=0x21c0c90, buffer=0x7fb238102b20) at gstpad.c:4710
#9  0x00007fb2a91bc8c8 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2658
#10 0x00007fb2a8f02bfa in gst_pad_push (pad=0x26e4380, buffer=0x7fb238102b20) at gstpad.c:4710
#11 0x00007fb2a91bc8c8 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2658
#12 0x00007fb2a8f02bfa in gst_pad_push (pad=0x21c0990, buffer=0x7fb238102b20) at gstpad.c:4710
#13 0x00007fb2a91bc8c8 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2658
#14 0x00007fb2a8f02bfa in gst_pad_push (pad=0x26e4080, buffer=0x7fb238102b20) at gstpad.c:4710
#15 0x00007fb2809f2deb in gst_queue_push_one (queue=0x2692060) at gstqueue.c:1156
#16 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1264
#17 0x00007fb2a8f28dcc in gst_task_func (task=0x7fb224058970) at gsttask.c:327
#18 0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#19 0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb290003590) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#20 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#21 0x00007fb2b2d99e9a in start_thread (arg=0x7fb237fff700) at pthread_create.c:308
#22 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#23 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7fb2377fe700 (LWP 15472)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b12b77ef in g_cond_wait (cond=0x26f3a10, mutex=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:746
#2  0x00007fb2809f2755 in gst_queue_loop (pad=<optimized out>) at gstqueue.c:1252
#3  0x00007fb2a8f28dcc in gst_task_func (task=0x7fb224058a70) at gsttask.c:327
#4  0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#5  0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb2900035e0) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#6  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#7  0x00007fb2b2d99e9a in start_thread (arg=0x7fb2377fe700) at pthread_create.c:308
#8  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fb236ffd700 (LWP 15473)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b12b77ef in g_cond_wait (cond=0x1e30f00, mutex=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:746
#2  0x00007fb2809f1f55 in gst_queue_chain (pad=<optimized out>, buffer=0x7fb29009a3f0) at gstqueue.c:1014
#3  0x00007fb2a8f02bfa in gst_pad_push (pad=0x2151850, buffer=0x7fb29009a3f0) at gstpad.c:4710
#4  0x00007fb2a8f02bfa in gst_pad_push (pad=0x271b650, buffer=0x7fb29009a3f0) at gstpad.c:4710
#5  0x00007fb2809fd49f in gst_tee_chain (pad=<optimized out>, buffer=0x7fb29009a3f0) at gsttee.c:828
---Type <return> to continue, or q <return> to quit---
#6  0x00007fb2a8f02bfa in gst_pad_push (pad=0x24f2c40, buffer=0x7fb29009a3f0) at gstpad.c:4710
#7  0x00007fb2a8f02bfa in gst_pad_push (pad=0x2719500, buffer=0x7fb29009a3f0) at gstpad.c:4710
#8  0x00007fb2a91bc8c8 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2658
#9  0x00007fb2a8f02bfa in gst_pad_push (pad=0x2719b00, buffer=0x7fb2900bf970) at gstpad.c:4710
#10 0x00007fb2a91bc8c8 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2658
#11 0x00007fb2a8f02bfa in gst_pad_push (pad=0x2719800, buffer=0x7fb2900bf970) at gstpad.c:4710
#12 0x00007fb2809f2deb in gst_queue_push_one (queue=0x2692d30) at gstqueue.c:1156
#13 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1264
#14 0x00007fb2a8f28dcc in gst_task_func (task=0x7fb224058b70) at gsttask.c:327
#15 0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#16 0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb290003630) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#17 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#18 0x00007fb2b2d99e9a in start_thread (arg=0x7fb236ffd700) at pthread_create.c:308
#19 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fb2367fc700 (LWP 15474)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b12b77ef in g_cond_wait (cond=0x2715e80, mutex=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:746
#2  0x00007fb2809f1f55 in gst_queue_chain (pad=<optimized out>, buffer=0x7fb2901762b0) at gstqueue.c:1014
#3  0x00007fb2a8f02bfa in gst_pad_push (pad=0x26ff600, buffer=0x7fb2901762b0) at gstpad.c:4710
#4  0x00007fb2a8f02bfa in gst_pad_push (pad=0x271b1d0, buffer=0x7fb2901762b0) at gstpad.c:4710
#5  0x00007fb2809fd118 in gst_tee_do_push (is_list=0, data=0x7fb2901762b0, pad=0x271b1d0, tee=0x2437ac0) at gsttee.c:675
#6  gst_tee_handle_data (tee=0x2437ac0, data=0x7fb2901762b0, is_list=0) at gsttee.c:754
#7  0x00007fb2809fd49f in gst_tee_chain (pad=<optimized out>, buffer=0x7fb2901762b0) at gsttee.c:828
#8  0x00007fb2a8f02bfa in gst_pad_push (pad=0x26e4c80, buffer=0x7fb2901762b0) at gstpad.c:4710
#9  0x00007fb2809f2deb in gst_queue_push_one (queue=0x26922f0) at gstqueue.c:1156
#10 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1264
#11 0x00007fb2a8f28dcc in gst_task_func (task=0x7fb224058c70) at gsttask.c:327
#12 0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#13 0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb290003680) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#14 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#15 0x00007fb2b2d99e9a in start_thread (arg=0x7fb2367fc700) at pthread_create.c:308
#16 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#17 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fb26d82e700 (LWP 16034)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b12b77ef in g_cond_wait (cond=0x20b6560, mutex=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:746
#2  0x00007fb2809f1f55 in gst_queue_chain (pad=<optimized out>, buffer=0x7fb2241c5de0) at gstqueue.c:1014
#3  0x00007fb2a8f02bfa in gst_pad_push (pad=0x21519f0, buffer=0x7fb2241c5de0) at gstpad.c:4710
#4  0x00007fb2a8f02bfa in gst_pad_push (pad=0x2720a90, buffer=0x7fb2241c5de0) at gstpad.c:4710
#5  0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb29002aab0, buffer=0x7fb2241c5de0) at gstpad.c:4710
#6  0x00007fb2a91bc8c8 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2658
#7  0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb29002a7b0, buffer=0x7fb2241c5de0) at gstpad.c:4710
#8  0x00007fb2a91bc8c8 in gst_base_transform_chain (pad=<optimized out>, buffer=<optimized out>) at gstbasetransform.c:2658
#9  0x00007fb2a8f02bfa in gst_pad_push (pad=0x4098420, buffer=0x7fb2241c5de0) at gstpad.c:4710
#10 0x00007fb2a8f02bfa in gst_pad_push (pad=0x4094df0, buffer=0x7fb2241c5de0) at gstpad.c:4710
#11 0x00007fb2809f2deb in gst_queue_push_one (queue=0x26934e0) at gstqueue.c:1156
#12 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1264
#13 0x00007fb2a8f28dcc in gst_task_func (task=0x7fb224058d70) at gsttask.c:327
#14 0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#15 0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb290036f70) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#16 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
---Type <return> to continue, or q <return> to quit---
#17 0x00007fb2b2d99e9a in start_thread (arg=0x7fb26d82e700) at pthread_create.c:308
#18 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fb1cffff700 (LWP 16255)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b6ee24db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fb2b7ee0354 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#3  0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#5  0x00007fb2b2d99e9a in start_thread (arg=0x7fb1cffff700) at pthread_create.c:308
#6  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fb1cf7fe700 (LWP 16256)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2b127bff6 in g_main_context_poll (n_fds=2, fds=0x7fb1bc002bc0, timeout=-1, context=0x7fb1bc0009c0, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fb1bc0009c0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#3  g_main_context_iterate (context=0x7fb1bc0009c0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007fb2b127c124 in g_main_context_iteration (context=0x7fb1bc0009c0, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#5  0x00007fb2b70103bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007fb2b6fdfc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fb2b6fdfed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007fb2b6edefa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fb2b6fbf9ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007fb2b6ee1fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007fb2b2d99e9a in start_thread (arg=0x7fb1cf7fe700) at pthread_create.c:308
#13 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fb281833700 (LWP 16395)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2aead935f in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fb2aeaca76c in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fb2aeacadd9 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fb2aeacae90 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fb2aead930f in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fb2a9f1ed18 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#7  0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007fb2b2d99e9a in start_thread (arg=0x7fb281833700) at pthread_create.c:308
#9  0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fb235ffb700 (LWP 22083)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b12b77ef in g_cond_wait (cond=0x7fb29001b860, mutex=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:746
#2  0x00007fb2809f1f55 in gst_queue_chain (pad=<optimized out>, buffer=0x7fb2900760a0) at gstqueue.c:1014
#3  0x00007fb2a8f02bfa in gst_pad_push (pad=0x4098c40, buffer=0x7fb2900760a0) at gstpad.c:4710
#4  0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb23801f660, buffer=0x7fb2900760a0) at gstpad.c:4710
#5  0x00007fb2803a5d4c in gst_stream_synchronizer_sink_chain (pad=<optimized out>, buffer=0x7fb2900760a0) at gststreamsynchronizer.c:601
#6  0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb29003a060, buffer=0x7fb2900760a0) at gstpad.c:4710
#7  0x00007fb2809fd49f in gst_tee_chain (pad=<optimized out>, buffer=0x7fb2900760a0) at gsttee.c:828
#8  0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb1c0037570, buffer=0x7fb2900760a0) at gstpad.c:4710
---Type <return> to continue, or q <return> to quit---
#9  0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb2384ef7c0, buffer=0x7fb2900760a0) at gstpad.c:4710
#10 0x00007fb2809e8d77 in gst_selector_pad_chain (pad=0x7fb290026e50, buf=0x7fb2900760a0) at gstinputselector.c:854
#11 0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb2640065a0, buffer=0x7fb2900760a0) at gstpad.c:4710
#12 0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb2383af460, buffer=0x7fb2900760a0) at gstpad.c:4710
#13 0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb1c0143950, buffer=0x7fb2900760a0) at gstpad.c:4710
#14 0x00007fb28184600c in gst_audio_decoder_push_forward (dec=0x7fb1c014d800, buf=0x7fb2900760a0) at gstaudiodecoder.c:637
#15 0x00007fb281846173 in gst_audio_decoder_output (dec=0x7fb1c014d800, buf=0x7fb2900760a0) at gstaudiodecoder.c:712
#16 0x00007fb28184ab3e in gst_audio_decoder_finish_frame (dec=0x7fb1c014d800, buf=0x7fb2900760a0, frames=<optimized out>) at gstaudiodecoder.c:901
#17 0x00007fb23437562d in vorbis_handle_data_packet (packet=0x7fb235ffa930, vd=0x7fb1c014d800, timestamp=<optimized out>, duration=<optimized out>) at gstvorbisdec.c:614
#18 vorbis_dec_handle_frame (dec=0x7fb1c014d800, buffer=<optimized out>) at gstvorbisdec.c:699
#19 0x00007fb28184820a in gst_audio_decoder_push_buffers (dec=0x7fb1c014d800, force=0) at gstaudiodecoder.c:1039
#20 0x00007fb2818485a0 in gst_audio_decoder_chain_forward (dec=0x7fb1c014d800, buffer=0x0) at gstaudiodecoder.c:1141
#21 0x00007fb28184935b in gst_audio_decoder_chain (pad=<optimized out>, buffer=0x40a2b20) at gstaudiodecoder.c:1389
#22 0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb2240ced90, buffer=0x40a2b20) at gstpad.c:4710
#23 0x00007fb2809ee536 in gst_single_queue_push_one (object=0x40a2b20, sq=0x7fb1c011c000, mq=0x7fb2380bc9a0) at gstmultiqueue.c:1087
#24 gst_multi_queue_loop (pad=<optimized out>) at gstmultiqueue.c:1318
#25 0x00007fb2a8f28dcc in gst_task_func (task=0x7fb1c0043980) at gsttask.c:327
#26 0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#27 0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb29003c0a0) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#28 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#29 0x00007fb2b2d99e9a in start_thread (arg=0x7fb235ffb700) at pthread_create.c:308
#30 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#31 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fb1cea82700 (LWP 22634)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2b12b77ef in g_cond_wait (cond=0x7fb238336a50, mutex=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:746
#2  0x00007fb2a91ca518 in gst_data_queue_push (queue=0x7fb1c018a8c0, item=0x7fb238275d90) at gstdataqueue.c:437
#3  0x00007fb2809ed824 in gst_multi_queue_chain (pad=<optimized out>, buffer=<optimized out>) at gstmultiqueue.c:1394
#4  0x00007fb2a8f02bfa in gst_pad_push (pad=0x7fb1c015c000, buffer=0x7fb22400e480) at gstpad.c:4710
#5  0x00007fb234794bfe in gst_ogg_demux_chain_peer (pad=0x7fb1c015c000, packet=0x7fb1cea81980, push_headers=0) at gstoggdemux.c:667
#6  0x00007fb234796b45 in gst_ogg_pad_submit_packet (packet=0x7fb1cea81980, pad=0x7fb1c015c000) at gstoggdemux.c:1047
#7  gst_ogg_pad_stream_out (pad=0x7fb1c015c000, npackets=0) at gstoggdemux.c:1086
#8  0x00007fb234797bb5 in gst_ogg_pad_submit_page (pad=0x7fb1c015c000, page=0x7fb1cea81b90) at gstoggdemux.c:1723
#9  0x00007fb23479cb0d in gst_ogg_demux_chain (pad=<optimized out>, buffer=<optimized out>) at gstoggdemux.c:4142
#10 0x00007fb23479d11a in gst_ogg_demux_loop_forward (ogg=0x7fb1c004abe0) at gstoggdemux.c:4267
#11 gst_ogg_demux_loop (pad=<optimized out>) at gstoggdemux.c:4409
#12 0x00007fb2a8f28dcc in gst_task_func (task=0x7fb1c0043480) at gsttask.c:327
#13 0x00007fb2b129e208 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:309
#14 0x00007fb2b129d9a5 in g_thread_proxy (data=0x7fb2240034a0) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
#15 0x00007fb2a8397b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#16 0x00007fb2b2d99e9a in start_thread (arg=0x7fb1cea82700) at pthread_create.c:308
#17 0x00007fb2b66854bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb2b9d807c0 (LWP 15400)):
#0  0x00007fb2b6679b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb2b127bff6 in g_main_context_poll (n_fds=17, fds=0x37520e0, timeout=99, context=0x201ab40, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x201ab40, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
#3  g_main_context_iterate (context=0x201ab40, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007fb2b127c124 in g_main_context_iteration (context=0x201ab40, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#5  0x00007fb2b70103bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007fb2b7a7ed5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007fb2b6fdfc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
---Type <return> to continue, or q <return> to quit---
#8  0x00007fb2b6fdfed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fb2b6fe4f67 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x0000000000408e4e in ?? ()
#11 0x00007fb2b65b476d in __libc_start_main (main=0x402250, argc=1, ubp_av=0x7fff081c2428, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff081c2418) at libc-start.c:226
#12 0x000000000040b83d in _start ()
(gdb) quit

Hope the above helps!
Comment 1 Matěj Laitl 2012-06-05 14:37:59 UTC 
Correctling component. Myriam, isn't this a duplicate? I think I've seen something similar lately.
Comment 2 Myriam Schweingruber 2012-06-06 07:42:47 UTC 
Well, yes, it is due to the phonon-backend-gstreamer, not an amarok engine problem, or do you see amarok in any of these threads?

Steve, please install the phonon-backend-vlc, change it in the Amarok Settings menu -> Configure Amarok -> Playback -> Configure Phonon, then restart KDE to make this backend change take effect.
Comment 3 Steve Murphy 2012-06-11 15:00:18 UTC 
OK, added the phonon-backend-vlc package, and it really messed up my sound. I seem to have things back to normal now, after maybe 3 or 4 reboots, and playing with various permutations of the sound system settings.

And, it is still hanging on second 2 or 3 of playback, occasionally. It will usually unstick itself after some minutes, and play a new song.

When it sticks, the play/pause button seems to go into strange states. Usually, the best way I've found to unstick it is to go to the pane on the right, where the currently playing song is highlighted, and double click it to start it over again.

I've been playing songs for mayber 3 hours now, and have it get stuck 3 or 4 times so far.
Comment 4 Myriam Schweingruber 2012-06-11 18:51:24 UTC 
Thank you for the feedback. If you say back to normal, you mean with the vlc backend or did you change that back?
Comment 5 Steve Murphy 2012-06-12 11:11:38 UTC 
I left the vlc backend alone, and tried to make everything work around it.
For intance, my muted-pa broke, because the slot number of the card
changed from 1 to 4, to pulseaudio's "pacmd list-sinks". 1 isn't even in the list.
0: <alsa_output.pci-0000_01_00.1.hdmi-stereo>
2: <combined>
4: <alsa_output.pci-0000_00_14.2.analog-stereo>

There are two sound interfaces; one on the motherboard (analog-stereo),
and one on the old bttv card I was hoping to use with the radio players.

Roughly the same happened all over pulseaudio. Any stored config in
the music player now no longer worked. Silence reigned.

Once I got beyond the confusion, the same old problem still exists. Occasionally,
the player just stops playing at 0:02 on the "clock". It will hold there for several minutes, then suddenly lurch back into sound generation in the middle of the next or third song. While in this wait state, if I hit the pause button, the 0:02 ----- -3:10 on the progress bar now change to 3:13 ----- 0:00; the pause button remains a pause button. The Amarok "Paused" popup comes up. I hit the pause button again. Nothing changes, the Amarok "Paused" popup comes up briefly again. I double click on the current song (or some other), and I force Amarok to start playing again. The "autopause" happens once every hour or two.
Comment 6 Myriam Schweingruber 2012-06-15 07:32:25 UTC 
Thank you for the feedback, This is the same issue than bug 299654

*** This bug has been marked as a duplicate of bug 299654 ***