Can't allocate DMA buffer

[Jake Griesbach <griesbac@gamera.colorado.edu>]

Hi,

I'm running the most recent kernel (2.2.7), and I also use a Crystal
semiconductor sound card, so I have the cs4232 kernel module.  Sometimes I
get the kernel error: 

  kernel: Sound error: Couldn't allocate DMA buffer

I have plenty of available memory left, so I don't understand why I am
getting this error.  Has anybody else received this error?  Does anybody
know of a workaround or fix for it?  I haven't received this error before
installing the 2.2.7 kernel.

Thanks,

Jake Griesbach
University of Colorado