Bug 478394

Summary:	[snd-hda-intel] Lots of "module-alsa-sink.c: ALSA woke us up but there was nothing to write!" from PulseAudio
Product:	[Fedora] Fedora	Reporter:	James <james>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	10	CC:	adam.bruce, fred.welland, gene-redhat, johnthehammer23, kai.kasurinen, kernel-maint, lpoetter, quintela, spider
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-03-03 01:33:55 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description James 2008-12-29 11:36:53 UTC

Description of problem:
I've found a vast amount of messages like 

Dec 28 21:49:05 rhapsody pulseaudio[3074]: module-alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Most likely this is an ALSA driver bug. Please report this issue to the PulseAudio developers.

in the syslog and .xession-errors. The messages seemed to cease when I disabled glitch-free playback in Pulse. The hardware is snd_intel_hda with a Realtek 883 codec.

Version-Release number of selected component (if applicable):
kernel-2.6.27.10-167.fc10.x86_64
pulseaudio-0.9.13-6.fc10.x86_64
alsa-lib-1.0.18-6.rc3.fc10.x86_64

How reproducible:
Extensively.
  
Actual results:
Logspam.

Expected results:
Fluent audio, no logspam.

Comment 1 D.S. Ljungmark 2009-01-09 02:48:49 UTC

I also get this behaviour on my Intel card (not the hda, but a HP laptop built in thing)

Pulseaudio also seems to eat ~25% cputime while playing.  Unpleasant, I think.

Card: Intel 82801DB-ICH4
│ Chip: Analog Devices AD1981B                                                 │
module : snd_intel8x0

Comment 2 Fred Welland 2009-01-09 21:36:38 UTC

I also get this.  Although in general, sound works OK.  When I stream RealAudio via RealPlayer 11.0.0.4028 GOLD -- the message just spew out to syslog -- but I audio is fine.    It seems to stop spewing these messages when I am not streaming audio (I still get GNOME sounds). 

cat /proc/asound/cards
 0 [ICH5           ]: ICH4 - Intel ICH5
                      Intel ICH5 with AD1981B at irq 17


This is running F10 (2.6.27.9-159.fc10.i686) on  and the following:

alsa-lib-1.0.18-6.rc3.fc10.i386
alsa-plugins-pulseaudio-1.0.18-2.fc10.i386
alsa-lib-devel-1.0.18-6.rc3.fc10.i386
alsa-utils-1.0.18-6.fc10.i386
bluez-alsa-4.22-2.fc10.i386
pulseaudio-libs-glib2-0.9.13-6.fc10.i386
pulseaudio-esound-compat-0.9.13-6.fc10.i386
pulseaudio-libs-0.9.13-6.fc10.i386
xine-lib-pulseaudio-1.1.15-3.fc10.i386
pulseaudio-module-gconf-0.9.13-6.fc10.i386
pulseaudio-0.9.13-6.fc10.i386
pulseaudio-utils-0.9.13-6.fc10.i386
pulseaudio-module-bluetooth-0.9.13-6.fc10.i386
alsa-plugins-pulseaudio-1.0.18-2.fc10.i386
pulseaudio-libs-zeroconf-0.9.13-6.fc10.i386
pulseaudio-core-libs-0.9.13-6.fc10.i386
pulseaudio-module-x11-0.9.13-6.fc10.i386

Comment 3 John 2009-02-03 22:45:51 UTC

See bug 471941, comment 8 for a workaround for your message log filling up.

Comment 4 Lennart Poettering 2009-03-03 01:33:55 UTC


*** This bug has been marked as a duplicate of bug 486068 ***