[alsa-devel] Backported sbxfi driver (UNTESTED!)

[The Source]

Takashi Iwai пишет:
> At Fri, 17 Oct 2008 10:26:27 +0400,
> The Source wrote:
>   
>> Takashi Iwai пишет:
>>     
>>> At Thu, 16 Oct 2008 22:18:07 +0400,
>>> The Source wrote:
>>>   
>>>       
>>>>>> Ok. OpenAL with alsa also seem to cause problems.
>>>>>>     
>>>>>>         
>>>>>>             
>>>>> In both cases, check the period_size and buffer_size values (shown in
>>>>> the kernel message, or /proc/asound/card0/pcm0p/sub0/hw_params).
>>>>> And, try to aplay with these parameters, whether you get the similar
>>>>> problem.
>>>>>
>>>>> 	% aplay -v --period-size=xxx --buffer-size=yyy foo.wav
>>>>>
>>>>>
>>>>> Takashi
>>>>>
>>>>>   
>>>>>       
>>>>>           
>>>> I'm sorry, but any attemp to play file with ossplay results in complete 
>>>> system hang with error:
>>>> unable to handle NULL ponter dereference at address 
>>>> 0000000000000008.....(hang, no more output).
>>>> I tried many wav formats. So I can't get error log or period and buffer 
>>>> sizes, sorry.
>>>>     
>>>>         
>>> Can anyone confirm to reproduce Oops with OSS apps (ossplay)?
>>>
>>> I'm wondering whether this has anything to do with the capture.
>>> Can you record the sound, and change the capture mixer element properly?
>>>
>>>
>>> thanks,
>>>
>>> Takashi
>>>
>>>   
>>>       
>> Err, I'm not sure I understand. Could you please explain step-by-step?
>>     
>
> Just run arecord to record something.  And, change the recording
> source via mixer.
>
> So far, I got little report about recording, and I'm not sure whether
> it works at all.
>
>
> Takashi
>
>   
I tried arecord with several sources and formats. I don't have mic or 
other recording device so the file is silent (and only 1 second length, 
I terminated arecord after 5 or so seconds, I don't know is 1s length is 
ok or not in this case), but at least it doesn't crash. Using ossrecord 
leads to NULL pointer dereference at 0000000000000008 and hang.