Re: ALSA driver 1.0.2c: divide by zero oops

[Takashi Iwai <tiwai@suse.de>]

At Tue, 16 Mar 2004 08:45:00 +1030 (CST),
Jonathan Woithe wrote:
> 
> > > I have been trying cinelerra 1.1.9 in OSS mode against the OSS emulation
> > > driver (snd-pcm-oss) from ALSA driver 1.0.2c. Whenever anything is done to
> > > start audio playback (such as playing a video clip) the ALSA driver panics
> > > with a divide by zero error.  The decoded oops is found below.
> > > 
> > > Under native OSS from 2.4.23 cinelerra works fine.  Furthermore, all other
> > > OSS applications I've tried against ALSA driver 1.0.2c seem to be fine. 
> > > Thus the problem seems to be associated with the way cinelerra does things -
> > > something it does is upsetting ALSA but is fine under native OSS.  Of
> > > course, even a misbehaving application not running as root should not be
> > > able to panic the kernel.
> > 
> > sure.  what soundcard/soundchip are you using?
> 
> It's an Ensoniq AudioPCI card with the ES-1370 chipset.
> 
> > also, did you compile with the debug option?
> 
> No.  Should I?  I'm guessing you may be after further debugging output
> here - if so, what would you like me to do (after compiling with the debug
> option)?

please turn on the debug option.  it will help to catch the bug there,
at least we can know whether it's really zero division.


Takashi


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