DragonFly BSD
DragonFly kernel List (threaded) for 2012-10
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Re: snd_hda

From: Francois Tigeot <ftigeot@xxxxxxxxxxxx>
Date: Sat, 13 Oct 2012 12:12:15 +0200

On Tue, Oct 09, 2012 at 11:13:17PM -0700, kyuupichan wrote:
> I did a buildworld and buildkernel a couple of days ago:
> DragonFly v3.3.0-DEVELOPMENT #0: Tue Oct  9 18:28:07 JST 2012
>     root@athlon2.akihabara.co.uk:/usr/obj/usr/src/sys/X86_64_GENERIC
> The main thing I've noticed so far is that sound now has a lot of static / fuzz when playing music with audacious; the prior kernel
> DragonFly v3.1.0.571.g9549c-DEVELOPMENT #2: Sat Apr 21 19:08:47 JST 2012
>     root@athlon2.akihabara.co.uk:/usr/obj/usr/src/sys/X86_64_GENERIC
> didn't have this issue; sound played perfectly (though would easily skip if the O/S was busy).  Has code in this area been changing?  I've attached the dmesg in case it's useful.  Also once sound didn't initialize properly on reboot; I needed to unload and reload snd_hda and sound modules.

I may have encountered the same issue in the past. Could you try running
make -j 3 buildkernel in the background and playing sound at the same time ?

Is there some improvement if you do that ?

I'm thinking of a memory coherency issue which should have been fixed by
this commit:

Francois Tigeot

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