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Date: Sun, 18 Mar 2007 23:39:54 +0300
From: "Andrew Pantyukhin" <infofarmer@FreeBSD.org>
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To: "Nguyen Tam Chinh" <unixvn@gmail.com>
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Cc: FreeBSD Current <current@freebsd.org>, Ariff Abdullah <ariff@freebsd.org>
Subject: Re: sound/snd_hda regression
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On 3/18/07, Nguyen Tam Chinh <unixvn@gmail.com> wrote:
> Hello,
>
> I got the same problem with hda when updating the source currently. As
> Andrew noticed, the new acpi does not help.
> From dmesg: pcm0: <HDA Driver Revision: 20070317_0042>

Try this:
http://people.freebsd.org/~ariff/test/snd_busdma_nocache.diff