[maemo-developers] [maemo-developers] Maemo 2.0 device reboot

[From: Siarhei Siamashka]

On Wednesday 18 October 2006 16:26, Mike Frantzen wrote:

> > On Tue, Oct 17, 2006 at 11:50:03AM +0200, Malix wrote:
> > > Hi, after upgrade to maemo 2.0 I have a problem. Some times my 770
> > > reboot. This happen some times when I'm using the browser and every
> > > time I try to use Gizmo. For now I never had problem with other
> > > programs. You think this is a software problem or hardware?
> >
> > My 770 reboots once every two--three days.  I think it's a software
> > problem.  I could be wrong.
>
> I think it's a DSP problem when the microphone is enabled.  When writing
> some audio programs using GStreamer the DSP will eventually start
> sending back error codes, stop working, and eventually cause the whole
> n770 to reboot.  I had to do a lot of trial-and-error playing with how
> the GStreamer dsmpcmsrc pipelines are built and re-used to cut down the
> frequency of the problems.  Never could get it completely reliable
> though.  Once the DSP is wedged you have to reboot (if it hasn't
> spontaneously rebooted already).

I can confirm Nokia 770 GStreamer implementation problems. It is used in
MPlayer (in not a very clean way, but that's another story) in order to get
mp3 audio decoded by DSP and reduce load on ARM core. I also observed 
system instability supposedly caused by starting/stopping audio playback:
http://maemo.org/pipermail/maemo-developers/2006-August/005232.html

Also most likely GStreamer is responsible for MPlayer lockups when trying to
play relatively long flv files as observed here:
http://www.internettablettalk.com/forums/showpost.php?p=22855&postcount=207

I know that IT2006 just switched to a new version of GStremer, and bugs can 
be expected. So I'm anticipating a bugfix release to check if some of the
problems got fixed