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

[Takashi Iwai]

At Fri, 17 Oct 2008 09:00:30 +0000,
Xarteras wrote:
> 
> Takashi Iwai wrote:
> > 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.
> 
> I just tested ossplay and arecord.
> For me both result in a spontanous crash back to BIOS without leaving 
> any traces in the log files.
> Everything else works fine so far.

OK, then the problem is consistent.
It's a bit tough to check without a proper log.
How about running with strace?  What is the last syscall before the
dead end?


thanks,

Takashi