Bug 487225

Summary: ALSA woke us up to write new data to the device, but there was actually nothing to write
Product: [Fedora] Fedora Reporter: D. Wagner <daw-redhatbugzilla>
Component: alsa-libAssignee: Jaroslav Kysela <jkysela>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 10CC: amlau, jkysela, lkundrak, lpoetter, pierre-bugzilla
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Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2009-03-03 01:25:09 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description D. Wagner 2009-02-24 21:29:36 UTC 
Description of problem:

I found these messages in my logs (/var/log/messages) on F10.  I'm including everything Pulseaudio/ALSA-related over the last day or so, but see the last two messages; apparently I'm requested to report this to Pulseaudio developers.

Feb 22 05:48:59 mundy pulseaudio[2838]: module-alsa-sink.c: Increasing wakeup watermark to 68.03 ms
Feb 22 21:04:08 mundy pulseaudio[2838]: module-alsa-sink.c: Increasing wakeup watermark to 136.05 ms
Feb 23 11:39:17 mundy pulseaudio[2838]: module-alsa-sink.c: Increasing wakeup watermark to 272.11 ms
Feb 23 20:46:18 mundy pulseaudio[2838]: module-alsa-sink.c: Increasing wakeup watermark to 34.01 ms
Feb 23 23:07:33 mundy pulseaudio[2838]: module-alsa-sink.c: Increasing wakeup watermark to 68.03 ms
Feb 24 00:37:02 mundy pulseaudio[2838]: module-alsa-sink.c: Increasing wakeup watermark to 136.05 ms
Feb 24 11:25:26 mundy pulseaudio[2838]: module-alsa-sink.c: Increasing wakeup watermark to 272.11 ms
Feb 24 11:38:38 mundy pulseaudio[2838]: 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.
Feb 24 12:46:20 mundy pulseaudio[2838]: 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.

I was listening to MP3's using Exaile at the time.


Version-Release number of selected component (if applicable):

pulseaudio-0.9.14-1.fc10.x86_64
pulseaudio-core-libs-0.9.14-1.fc10.x86_64
alsa-plugins-pulseaudio-1.0.18-2.fc10.x86_64
alsa-lib-1.0.19-2.fc10.i386
kernel-2.6.27.15-170.2.24.fc10.x86_64
exaile-0.2.14-1.fc10.x86_64

I've installed debuginfo packages associated with some of these packages and will report if this provides any further information to help in debugging the problem.


P.S. How do I get someone who maintains this Bugzilla web site to pay attention to bugs reported about the web site?  Interacting with this web site to file new bugs is a major annoyance, due to issues that should be easily fixable by someone with the proper access.  I've filed a bug but got no response.

https://bugzilla.redhat.com/show_bug.cgi?id=481080
Comment 1 D. Wagner 2009-02-24 21:42:32 UTC 
Perhaps I should mention some additional information in case it is helpful to developers:

I didn't notice any disruption to the audio.

lspci -v excerpt:

00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller
 (rev 02)
        Subsystem: Dell Device 01dd
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at dffdc000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 
Enable-
        Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
        Capabilities: [100] Virtual Channel <?>
        Capabilities: [130] Root Complex Link <?>
        Kernel driver in use: HDA Intel
        Kernel modules: snd-hda-intel

lsmod shows that I have the snd_hda_intel module loaded (along with many others).

See also bug #475236, bug #478394, bug #471941 which appear to refer to similar log messages but in different audio cards (I believe).  Where should this be reported to ensure that the appropriate developers have a chance to see this bug?

I'm noticing that perhaps this should be assigned to ALSA, not Pulseaudio, so I'm changing the component this is associated with (hope the new choice is a bit better; sorry that I wasn't sure which component is the one for ALSA device drivers)...
Comment 2 Lennart Poettering 2009-02-25 02:02:48 UTC 
This is more like
Comment 3 Lennart Poettering 2009-02-25 02:40:08 UTC 
Please ignore that comment of mine, sorry.
Comment 4 Lennart Poettering 2009-03-03 01:25:09 UTC 

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