[mythtv-users] Random mythbackend exits

[Steve MacLaren]

On 7/26/07, Brad DerManouelian <myth at dermanouelian.com> wrote:
>
> On Jul 26, 2007, at 10:09 AM, Phil Figgins wrote:
>
> > David,
> > No dice here. It can go for a week without a crash, but sometimes
> > as little
> > as 15 minutes in between them. It seems that no one has an answer,
> > and I
> > simply don't know enough about Linux to figure it out. My plan is
> > to build a
> > temporary backend out of some older hardware to replace this one
> > and then
> > rebuild this one. I'd be glad to hear from anyone with ideas before
> > I waste
> > time building 2 systems.
> >
> > My current "fix" when the wife & kids say "the tv's broke again" is
> > to fire
> > up TeraTerm and run "/etc/init.d/mythbackend restart". The stop of the
> > mythbackend service fails each time since it's already dead. So I
> > think the
> > errors we see in our logs are just building up to whatever is
> > killing the
> > service. That might explain why it's not the same error every time.
> > It seems
> > like the failure to connect to itself is the beginning of things going
> > downhill.
> >
> > FYI - I'm running MythDora 3.2 on more than capable hardware.
> >
> > Phil
>
> My AMD64 x86_64 system was very unstable when I was using EIT data
> collection. I turned it off and it's been great ever since. I still
> get crashes once in a while when watching LiveTV in HD and it starts
> to record something with the same tuner or when two HD shows record
> one after the other on the HD tuner, but only sometimes. Most of my
> recording is SD so I just deal with it when it happens.
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>

I'm experiencing the same type of backend crashes - what caught my eye in
this post was the lines from Phil's post:

[mpeg2video @ 0x2b7ca24]ac-tex damaged at 25 29

[mpeg2video @ 0x2b7ca24]Warning MVs not available
Each time in the backend log, the message about the connection to the
backend server timing out is preceded by these mpeg2video codec error
messages.  In addition, I see:

[mpeg2video @ 0x2b7064d97fd0]invalid mb type in I Frame at 22 22
and
[mpeg2video @ 0x2b7064d97fd0]mb incr damaged
as well.

I've searched the mailing list for these errors, and have seen several
comments that they are "normal".  Has anyone else seen them associated with
the crashes?  If they represent a "normal" state, why would they be written
as warnings to the log?

-- 
________________________
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