kern/129604: [sound] Sound stops with error:
pcm0:virtual:dsp0.vp0: play interrupt timeout, channel dead
Olivier Smedts
olivier at gid0.org
Thu Apr 5 08:10:05 UTC 2012
The following reply was made to PR kern/129604; it has been noted by GNATS.
From: Olivier Smedts <olivier at gid0.org>
To: "Conrad J. Sabatier" <conrads at cox.net>
Cc: Yuri <yuri at rawbw.com>, freebsd-multimedia at freebsd.org,
bug-followup at freebsd.org
Subject: Re: kern/129604: [sound] Sound stops with error: pcm0:virtual:dsp0.vp0:
play interrupt timeout, channel dead
Date: Thu, 5 Apr 2012 10:06:05 +0200
2012/4/5 Conrad J. Sabatier <conrads at cox.net>:
> On Wed, 04 Apr 2012 14:43:59 -0700
> Yuri <yuri at rawbw.com> wrote:
>
>> On 04/04/2012 14:25, Conrad J. Sabatier wrote:
>> > I've been seeing this intermittently for a very long time. =A0I've
>> > reported it and have received a patch from the sound maintainer,
>> > but it still occurs every so often nonetheless.
>> >
>> > This is a long-standing bugaboo that has yet to be fully resolved.
>>
>> Maybe it's a good idea if you posted this patch into the bug comments
>> (bug-followup at FreeBSD.org) so that whoever looks into it can at least
>> see the direction the patch was going.
>>
>> Yuri
>
> Here's the patch I got from (I forget who sent it to me!):
>
> --- hdac.c =A0 =A0 =A0(revision 230571)
> +++ hdac.c =A0 =A0 =A0(working copy)
> @@ -1921,6 +1921,8 @@
> =A0 =A0 =A0 =A0ctl |=3D 1 << ss;
> =A0 =A0 =A0 =A0HDAC_WRITE_4(&sc->mem, HDAC_INTCTL, ctl);
>
> + =A0 =A0 =A0 HDAC_WRITE_1(&sc->mem, off + HDAC_SDSTS,
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 HDAC_SDSTS_DESE | HDAC_SDSTS_FIFOE | HDAC_S=
DSTS_BCIS);
> =A0 =A0 =A0 =A0ctl =3D HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0);
> =A0 =A0 =A0 =A0ctl |=3D HDAC_SDCTL_IOCE | HDAC_SDCTL_FEIE | HDAC_SDCTL_DE=
IE |
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0HDAC_SDCTL_RUN;
>
>
> --
> Conrad J. Sabatier
> conrads at cox.net
> _______________________________________________
> freebsd-multimedia at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-multimedia
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This patch has already been committed to 10-CURRENT and 9-STABLE :
# svn log -r232798 sys/dev/sound/pci/hda/hdac.c
------------------------------------------------------------------------
r232798 | mav | 2012-03-10 22:58:08 +0100 (sam 10 mar 2012) | 13 lignes
MFC r230130, r230181, r230312, r230326, r230331, r230451, r230465, r230488,
r230507, r230511, r230513, r230532, r230537, r230551, r230554, r230571,
r230574, r230585, r230641, r230768, r230807, r231024:
Sync snd_hda(4) driver with HEAD.
This includes major code refactoring, HDMI support, new volume control,
automatic recording source selection, runtime reconfigureation, support
for more then 4 PCM devices on controller, multichannel recording,
additional playback/record streams, higher bandwidths support, more
informative device names and many other things.
Sponsored by: iXsystems, Inc.
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