At 02 Apr 2003 00:17:49 +0000,
Giuliano Pochini wrote:
> 
> 
> > My driver do not work anymore with xmms (alsa-xmms plugin) and
> > alsaplayer. [...]
> 
> I tried to force the alsaplayer plugin to set S16_LE format (data is BE
> on powerpc) and it do not spit that errors anymore, but it do not play
> anything and in the logs alsa prints:
> 
> ALSA ../alsa-kernel/core/pcm_lib.c:2219: BUG? (substream->ops->copy !=
> ((void *)0) || runtime->dma_area != ((void *)0)) (called from d2040794)
> last message repeated 11886 times
> 
> I don't set .copy callback and ->dma_area should be 0 because the card
> uses a sg-list. #:(

no, dma_area should not be zero.  you shouldn't change the value, if
you use snd_pcm_lib_malloc_pages().  in the case of sg-buffer,
dma_area will hold the virtual mapped address, too.


Takashi


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