[xine-bugs] [ xine-Bugs-1551911 ] pcm.c:890: snd_pcm_state: Assertion `pcm' failed.

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Bugs item #1551911, was opened at 2006-09-04 04:38
Message generated for change (Comment added) made by nobody
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=109655&aid=1551911&group_id=9655

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Category: audio output problems
Group: None
Status: Open
Resolution: None
Priority: 7
Submitted By: Phoenix Revived (phoenixrevived)
Assigned to: Nobody/Anonymous (nobody)
Summary: pcm.c:890: snd_pcm_state: Assertion `pcm' failed.

Initial Comment:
I am hoping that this is a known bug.

I am writing a front-end to xine using the Qt interface
from the Kaffeine project. I have fixed most of the
mutex problems so far, but I am stumped on this one.
This happens if I make rapid calls to change the audio
channel while playing an ISO copy of a DVD. Sometimes
it happens on the first call, and sometimes it takes
several to reproduce the problem. It doesn't appear to
matter how many audio channels are available.

I am running this on Fedora FC5. I have the following
RPMs installed:

libXinerama-1.0.1-1.2
xine-lib-devel-1.1.2-3.lvn5
libXinerama-devel-1.0.1-1.2
xine-lib-1.1.2-3.lvn5
xine-0.99.4-7.lvn5

Any help would be greatly appreciated.

--- Phoenix
mail: Pho...@ya...

pcm.c:890: snd_pcm_state: Assertion `pcm' failed.

Program received signal SIGABRT, Aborted.
[Switching to Thread 104975264 (LWP 1580)]
0x00811402 in __kernel_vsyscall ()
(gdb) where
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00857069 in raise () from /lib/libc.so.6
#2  0x00858671 in abort () from /lib/libc.so.6
#3  0x008509d9 in __assert_fail () from /lib/libc.so.6
#4  0x0426f83b in snd_pcm_state () from /lib/libasound.so.2
#5  0x0078e6bb in ?? () from
/usr/lib/xine/plugins/1.1.2/xineplug_ao_out_alsa.so
#6  0x0014f580 in xine_get_next_audio_frame () from
/usr/lib/libxine.so.1
#7  0x00ac940b in start_thread () from /lib/libpthread.so.0
#8  0x008f7b7e in clone () from /lib/libc.so.6
(gdb) thread apply all where

Thread 10 (Thread -1235653728 (LWP 1585)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00acc406 in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib/libpthread.so.0
#2  0x00140a3c in _x_dummy_fifo_buffer_new () from
/usr/lib/libxine.so.1
#3  0x002d593d in ?? () from
/usr/lib/xine/plugins/1.1.2/xineplug_inp_dvd.so
#4  0x0015c9c4 in _x_rip_plugin_get_instance () from
/usr/lib/libxine.so.1
#5  0x03afb9a5 in ?? () from
/usr/lib/xine/plugins/1.1.2/xineplug_dmx_mpeg_block.so
#6  0x03afd1c6 in ?? () from
/usr/lib/xine/plugins/1.1.2/xineplug_dmx_mpeg_block.so
#7  0x00154f7f in _x_demux_start_thread () from
/usr/lib/libxine.so.1
#8  0x00ac940b in start_thread () from /lib/libpthread.so.0
#9  0x008f7b7e in clone () from /lib/libc.so.6

Thread 9 (Thread -1222698080 (LWP 1584)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x008ee550 in poll () from /lib/libc.so.6
#2  0x009dd779 in XProcessInternalConnection () from
/usr/lib/libX11.so.6
#3  0x009ddb5f in _XRead () from /usr/lib/libX11.so.6
#4  0x009df4f1 in _XReadEvents () from /usr/lib/libX11.so.6
#5  0x009c84cb in XNextEvent () from /usr/lib/libX11.so.6
#6  0x08065e15 in KXineWidget::run (this=0x8e57938) at
qxinewidget.cpp:1120
#7  0x04d48f8c in QThreadInstance::start () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#8  0x00ac940b in start_thread () from /lib/libpthread.so.0
#9  0x008f7b7e in clone () from /lib/libc.so.6

Thread 8 (Thread 146484128 (LWP 1583)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00ace97e in __lll_mutex_lock_wait () from
/lib/libpthread.so.0
#2  0x00acb22f in _L_mutex_lock_71 () from
/lib/libpthread.so.0
#3  0x00acb00e in pthread_mutex_lock () from
/lib/libpthread.so.0
#4  0x05098df7 in QRecursiveMutexPrivate::lock () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#5  0x050989d4 in QMutex::lock () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#6  0x04d502e2 in QApplication::lock () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#7  0x08066473 in KXineWidget::xineEventListener
(p=0x8e57938, xineEvent=0xb5400a08) at qxinewidget.cpp:397
#8  0x001502bc in xine_event_wait () from
/usr/lib/libxine.so.1
#9  0x00ac940b in start_thread () from /lib/libpthread.so.0
#10 0x008f7b7e in clone () from /lib/libc.so.6

Thread 7 (Thread 133831584 (LWP 1582)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00ace97e in __lll_mutex_lock_wait () from
/lib/libpthread.so.0
#2  0x00acb22f in _L_mutex_lock_71 () from
/lib/libpthread.so.0
#3  0x00acb00e in pthread_mutex_lock () from
/lib/libpthread.so.0
#4  0x0014b5eb in _x_ao_channels2mode () from
/usr/lib/libxine.so.1
#5  0x00e4703c in ?? () from
/usr/lib/xine/plugins/1.1.2/xineplug_decode_a52.so
#6  0x001441cb in _x_get_audio_decoder () from
/usr/lib/libxine.so.1
#7  0x001478a9 in _x_audio_decoder_init () from
/usr/lib/libxine.so.1
#8  0x00ac940b in start_thread () from /lib/libpthread.so.0
#9  0x008f7b7e in clone () from /lib/libc.so.6

Thread 6 (Thread 44600224 (LWP 1581)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00acc67c in pthread_cond_timedwait@@GLIBC_2.3.2
() from /lib/libpthread.so.0
#2  0x00148071 in _x_audio_decoder_init () from
/usr/lib/libxine.so.1
#3  0x0014814e in _x_audio_decoder_init () from
/usr/lib/libxine.so.1
#4  0x0147614a in mpeg2_decode_data () from
/usr/lib/xine/plugins/1.1.2/xineplug_decode_mpeg2.so
#5  0x0148e5bd in mpeg2_stats () from
/usr/lib/xine/plugins/1.1.2/xineplug_decode_mpeg2.so
#6  0x001464f6 in _x_spu_decoder_sleep () from
/usr/lib/libxine.so.1
#7  0x00ac940b in start_thread () from /lib/libpthread.so.0
#8  0x008f7b7e in clone () from /lib/libc.so.6

Thread 5 (Thread 104975264 (LWP 1580)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00857069 in raise () from /lib/libc.so.6
---Type <return> to continue, or q <return> to quit---
#2  0x00858671 in abort () from /lib/libc.so.6
#3  0x008509d9 in __assert_fail () from /lib/libc.so.6
#4  0x0426f83b in snd_pcm_state () from /lib/libasound.so.2
#5  0x0078e6bb in ?? () from
/usr/lib/xine/plugins/1.1.2/xineplug_ao_out_alsa.so
#6  0x0014f580 in xine_get_next_audio_frame () from
/usr/lib/libxine.so.1
#7  0x00ac940b in start_thread () from /lib/libpthread.so.0
#8  0x008f7b7e in clone () from /lib/libc.so.6

Thread 4 (Thread 34110368 (LWP 1579)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x008ee550 in poll () from /lib/libc.so.6
#2  0x0078e1b1 in ?? () from
/usr/lib/xine/plugins/1.1.2/xineplug_ao_out_alsa.so
#3  0x00ac940b in start_thread () from /lib/libpthread.so.0
#4  0x008f7b7e in clone () from /lib/libc.so.6

Thread 3 (Thread 123341728 (LWP 1578)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00acc67c in pthread_cond_timedwait@@GLIBC_2.3.2
() from /lib/libpthread.so.0
#2  0x0014a708 in _x_vo_new_port () from
/usr/lib/libxine.so.1
#3  0x00ac940b in start_thread () from /lib/libpthread.so.0
#4  0x008f7b7e in clone () from /lib/libc.so.6

Thread 2 (Thread 57564064 (LWP 1577)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x00acc67c in pthread_cond_timedwait@@GLIBC_2.3.2
() from /lib/libpthread.so.0
#2  0x0013d1f5 in _x_metronom_init () from
/usr/lib/libxine.so.1
#3  0x00ac940b in start_thread () from /lib/libpthread.so.0
#4  0x008f7b7e in clone () from /lib/libc.so.6

Thread 1 (Thread -1208448320 (LWP 1572)):
#0  0x00811402 in __kernel_vsyscall ()
#1  0x008f0e11 in ___newselect_nocancel () from
/lib/libc.so.6
#2  0x04cf8d96 in QEventLoop::processEvents () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#3  0x04d6a090 in QEventLoop::enterLoop () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#4  0x04d69f56 in QEventLoop::exec () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#5  0x04d506ff in QApplication::exec () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#6  0x080558dc in main (argc=1, argv=0xbfbb9a64) at
Main.cpp:155
(gdb) quit

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2006-09-20 17:49

Message:
Logged In: NO 

I'd like to confirm the gravity of this bug:
I'm running a HT box, and I also experience similar 
crashes.
alsa-lib version 1.0.11

----------------------------------------------------------------------

Comment By: Diego Pettenò (dgp85)
Date: 2006-09-13 10:31

Message:
Logged In: YES 
user_id=60011

The assertion that fails is in ALSA. Please try to provide 
a complete backtrace, stating also the versions of the 
alsa-lib package (however is called on your distribution).

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2006-09-11 12:49

Message:
Logged In: NO 

This bug only occurs in multiprocessor machines.

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2006-09-11 12:47

Message:
Logged In: NO 

This bug only occurs in multiprocessor machines.

----------------------------------------------------------------------

Comment By: Phoenix Revived (phoenixrevived)
Date: 2006-09-05 02:58

Message:
Logged In: YES 
user_id=1590279

Just as an update, this bug exists in the latest nightly
build as well,

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=109655&aid=1551911&group_id=9655