Re: vchans seem to affect /dev/dsp* availability

From: Alexander Leidinger <Alexander_at_Leidinger.net>
Date: Mon, 28 Apr 2003 13:19:06 +0200
On Sun, 27 Apr 2003 17:30:53 -0700
"Cliff L. Biffle" <cbiffle_at_safety.net> wrote:

> When I have vchans enabled, every few attempts at opening /dev/dsp* result in 
> 'Operation not supported by device.'  Also, while they're enabled, some 
> programs (most reproduceably artsd) peg my CPU after outputting sound data in 
> certain situations.
> 
> Disabling vchans fixes the problem.  The problem's a little ephemeral, so I'm 

No:

(2) netchild_at_ttyp2 % sysctl hw.snd.maxautovchans
hw.snd.maxautovchans: 0

and I still get it sometimes too. I just noticed it yesterday while
trying to record something via line-in and playing it back after recording it.

(3) netchild_at_ttyp2 % dmesg |grep pcm0
pcm0: <VIA VT82C686A> port 0xe400-0xe403,0xe000-0xe003,0xdc00-0xdcff irq 5 at device 7.5 on pci0
pcm0: <SigmaTel STAC9721/23 AC97 Codec>

-current as of Apr. 2.

Bye,
Alexander.

-- 
   If Bill Gates had a dime for every time a Windows box crashed...
                ...Oh, wait a minute, he already does.

http://www.Leidinger.net                       Alexander _at_ Leidinger.net
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Received on Mon Apr 28 2003 - 02:20:51 UTC

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