'node->type == SND_CONFIG_TYPE_COMPOUND' failed

'node->type == SND_CONFIG_TYPE_COMPOUND' failed

[Michael Hirsch]

Hello all,

I'm trying to get alsa 1.0.16 working on a ARM PXA processor and I'm 
stuck with the following error message:

aplay: conf.c: 3166: snd_config_iterator_first: Assertion `node->type == 
SND_CONFIG_TYPE_COMPOUND' failed.

kernel version matches the user space library and utils version.

searching the archives / google brings no result.

We tried with an empty alsa.conf but then the message:

ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
aplay: main:564: audio open error: No such file or directory

appears. However the card shows up /proc/asound/cards and alsamixer is 
able to access it.

Any ideas?

Best regards

Michael

Re: 'node->type == SND_CONFIG_TYPE_COMPOUND' failed

[Takashi Iwai]

At Mon, 12 Jan 2009 17:12:03 +0100,
Michael Hirsch wrote:
> 
> 
> Hello all,
> 
> I'm trying to get alsa 1.0.16 working on a ARM PXA processor and I'm 
> stuck with the following error message:
> 
> aplay: conf.c: 3166: snd_config_iterator_first: Assertion `node->type == 
> SND_CONFIG_TYPE_COMPOUND' failed.

It somehow means a syntax error of the configuration file.
The code expects that the config tree to be a compound type but the
given data isn't.

> kernel version matches the user space library and utils version.
> 
> searching the archives / google brings no result.
> 
> We tried with an empty alsa.conf but then the message:
> 
> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:564: audio open error: No such file or directory
> 
> appears. However the card shows up /proc/asound/cards and alsamixer is 
> able to access it.
> 
> Any ideas?

Try a newer version of alsa-lib.  Possibly fixed, or give you a better
error message.  At least, this bad "assert" should be gone now.


Takashi

Re: 'node->type == SND_CONFIG_TYPE_COMPOUND' failed

[Michael Hirsch]

Hello,

Takashi Iwai wrote:
>> kernel version matches the user space library and utils version.
>>
>> searching the archives / google brings no result.
>>
>> We tried with an empty alsa.conf but then the message:
>>
>> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
>> aplay: main:564: audio open error: No such file or directory
>>
>> appears. However the card shows up /proc/asound/cards and alsamixer is 
>> able to access it.
>>
>> Any ideas?
> 
> Try a newer version of alsa-lib.  Possibly fixed, or give you a better
> error message.  At least, this bad "assert" should be gone now.

isn't it an obligation to keep version of user space and kernel in sync?
The kernel we use ships with alsa 1.0.16 and this nothing we can change 
easily.

Michael

Re: 'node->type == SND_CONFIG_TYPE_COMPOUND' failed

[Takashi Iwai]

At Mon, 12 Jan 2009 17:51:11 +0100,
Michael Hirsch wrote:
> 
> Hello,
> 
> Takashi Iwai wrote:
> >> kernel version matches the user space library and utils version.
> >>
> >> searching the archives / google brings no result.
> >>
> >> We tried with an empty alsa.conf but then the message:
> >>
> >> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
> >> aplay: main:564: audio open error: No such file or directory
> >>
> >> appears. However the card shows up /proc/asound/cards and alsamixer is 
> >> able to access it.
> >>
> >> Any ideas?
> > 
> > Try a newer version of alsa-lib.  Possibly fixed, or give you a better
> > error message.  At least, this bad "assert" should be gone now.
> 
> isn't it an obligation to keep version of user space and kernel in sync?

alsa-lib keeps the backward compatibility.  A newer alsa-lib works
with an older kernel.  If not, it's a bug :)


Takashi