Re: [RFC 0/2] McBSP and ASoC OMAP update patches for 2430 and 34xx

[Felipe Balbi <me@felipebalbi.com>]

On Mon, Aug 25, 2008 at 02:50:04PM -0700, Steve Sakoman wrote:
> >> ALSA sound/core/pcm_native.c:2573: BUG? (substream != ((void *)0))
> >
> > Hmmm... this looks odd.
> >
> > Jarkko, shouldn't that snd_assert() in pcm_native.c check if substream
> > _is_ NULL instead of !is NULL ?
> 
> I found this odd also, but looking in
> Documentation/sound/alsa/DocBook/writing-an-alsa-driver I found that
> the sense of the test is indeed the reverse of what you would expect
> -- you are specifying the condition that *should* be met, and the
> action to take if it is not.
> 
> I can also verify that the substream pointer is indeed null -- the
> reason I enabled alsa debugging in the first place is that the kernel
> was crashing due to a null pointer :-)

Hmm, so the crash is actually somewhere else. Could you disable debug
and get the NULL pointer dereference at the right point ?

I think it'll be easier to track down, maybe.

-- 
balbi