#536896 linux-image-2.6.26-2-amd64: audio popping with gstreamer using apps when using amd64 kernel and i386 userspace

Package:
totem
Source:
totem
Description:
Simple media player for the GNOME desktop based on GStreamer
Submitter:
James Andrewartha
Date:
2010-04-29 11:09:03 UTC
Severity:
normal
#536896#5
Date:
2009-07-14 13:57:54 UTC
From:
To:
All audio from gstreamer-using apps (eg Totem and Banshee) pops when I use a
2.6.{25,26,28,30} amd64 kernel and i386 userspace. 2.6.24-etchnhalf.1-amd64
does not have this problem, nor does 2.6.26-2-686. It doesn't occur when using
non-gstreamer apps like mplayer or mpd, nor with various gst-launch pipelines
suggested by #gstreamer like gst-launch playbin uri=file:///home/trs80/a.mp3
#536896#10
Date:
2010-02-25 18:34:35 UTC
From:
To:
tags 536896 moreinfo
thanks

Hi,
The next release of Debian (6.0, code name Squeeze) will be based
on 2.6.32. Please test the current 2.6.32 from unstable/testing and tell
us whether the problem persists. If so, we should report it upstream
to the kernel.org developers.

The 2.6.32 kernel is available from packages.debian.org and can
be installed in both Debian stable, testing and unstable
installations.

Thanks,
        Moritz
#536896#17
Date:
2010-02-26 15:06:43 UTC
From:
To:
It still happens with 2.6.32. Is there an easy way to git bisect and
generate .debs of the kernels to test, or do I have to manually install
them?
#536896#22
Date:
2010-02-26 16:41:22 UTC
From:
To:
which 2.6.32 version, tried 2.6.32-9?

indeed in upstream git: make deb-pkg
#536896#27
Date:
2010-02-26 17:00:34 UTC
From:
To:
On Fri, Feb 26, 2010 at 11:06:43PM +0800, James Andrewartha wrote:
[...]

You should be able to install the kernel using
'make install modules_install'.  You can build packages using 'make deb-pkg'
but I don't think that will be much easier.

Ben.
#536896#32
Date:
2010-02-27 03:52:58 UTC
From:
To:
Only 2.6.32-8 - -9 hasn't propogated to the mirrors yet. Has make deb-pkg
been around since 2.6.24, since that was where I was going to start
bisecting?
#536896#37
Date:
2010-02-28 00:27:48 UTC
From:
To:
yes, you may need to call it with fakeroot in older linux-2.6
fakeroot -u make deb-pkg
#536896#42
Date:
2010-04-11 17:08:19 UTC
From:
To:
Author: Takashi Iwai <tiwai@suse.de>  2008-01-09 02:08:14
Committer: Jaroslav Kysela <perex@perex.cz>  2008-02-01 01:29:47
Parent: d948035a928400ae127c873fbf771389bee18949 ([ALSA] Remove PCM xfer_align sw params)

    [ALSA] PCM - clean up snd_pcm_lib_read/write

    Introduce a common helper function for snd_pcm_lib_read and snd_pcm_lib_write
    for cleaning up the code.

    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    Signed-off-by: Jaroslav Kysela <perex@perex.cz>

I don't know anything about this code, but I'm happy to deal with upstream
if you'd prefer me to.
#536896#47
Date:
2010-04-11 20:25:16 UTC
From:
To:
[Earlier messages can be found at http://bugs.debian.org/536896 ]

Thanks for taking the time to do this.

The above commit is supposed to be cleanup, but it has at least one
semantic change: snd_pcm_mmap_control::avail_min no longer applies to
non-blocking file handles.  I don't know whether this is was an
intentional or unintentional change, but it wasn't commented.  I also
don't know whether this can explain the popping, but I expect that it
has changed the timing of audio I/O.

Ben.
#536896#56
Date:
2010-04-12 07:26:50 UTC
From:
To:
At Sun, 11 Apr 2010 21:25:16 +0100,
Ben Hutchings wrote:

The above change is essentially a fix of the buggy behavior for
non-blocking access.  avail_min is the definition for wake-up
behavior, and it doesn't define the blocking behavior.
But, it's possible that this changes the timing, indeed.  If so, it
implies that the app expects somehow wrongly.


thanks,

Takashi
#536896#61
Date:
2010-04-12 20:18:49 UTC
From:
To:
[...]

Thanks for your quick response.  I will reassign this bug to the
applications that were mentioned.

Ben.
#536896#72
Date:
2010-04-29 11:04:17 UTC
From:
To:
I've tested totem from squeeze in a chroot and it still occurs, so it
hasn't been fixed there.

ii  totem                       2.28.5-3                    A simple media player for the GNOME desktop based on GStreamer
ii  gstreamer0.10-alsa          0.10.28-1                   GStreamer plugin for ALSA
ii  gstreamer0.10-plugins-good  0.10.21-1                   GStreamer plugins from the "good" set
ii  libgstreamer-plugins-base0. 0.10.28-1                   GStreamer libraries from the "base" set
ii  libgstreamer0.10-0          0.10.28-1                   Core GStreamer libraries and elements