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From: Norikatsu Shigemura <nork@FreeBSD.org>
To: yongari@kt-is.co.kr
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cc: freebsd-multimedia@FreeBSD.org
cc: gabor@zahemszky.hu
Subject: Re: Maestro3 and 5.3-beta5
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On Thu, 23 Sep 2004 11:40:38 +0900
Pyun YongHyeon <yongari@kt-is.co.kr> wrote:
> Since it worked before, it sounds like DMA buffer allocation issue.
> Can you try attached patch? It doesn't fix your issue but it checks
> return code correctly and we can know whether DMA buffer allocation
> was successful or not.

	I was in trouble with this problem, too.  So I tested your
	patch.  It looks good with Onkyo SE-120PCI(Maestro3).
	Would you plase commit to CURRENT and RELENG_5?

> If DMA buffer allocation was successful I have no idea. If you see
> DMA buffer allocation failure you probably can workaround the
> issue like this:
>         Step 1. Make static kernel with your sound drivers. 
>         Step 2. add vm.old_contigmalloc=1 in /etc/sysctl.conf
> If you needed step2, maestro3 driver needs rewriting for its memory
> management code.

	So I didn't try to do it.