[mythtv-users] Error: offset>181

[Peter Bienstman]

Hi,

I only have a single tuner, and the same issue also pops up (albeit less
frequently) if I disable EIT scanning, so that's not the root cause.

Anyway, I would guess that race conditions are bugs to be fixed :-)

Cheers,

Peter

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
> bounces at mythtv.org] On Behalf Of Karl Dietz
> Sent: 02 August 2014 09:32
> To: mythtv-users at mythtv.org
> Subject: Re: [mythtv-users] Error: offset>181
> 
> On 02.08.2014 07:59, Peter Bienstman wrote:
> 
> > Actually, I can get this to fail more reliably if I turn on active EIT
scan.
> 
> > Also, turns out my syslog is full of messages like
> >
> > [  128.728029] cx23885_wakeup: 18 buffers handled (should be 1) [
> > 128.828029] cx23885_wakeup: 17 buffers handled (should be 1)
> 
> The active EIT scanner will change channels way more often then normal
> recording duties. As a side effect it will trigger race conditions, e.g.
when a
> driver misses proper locking of a shared I2C bus on a dual tuner card,
more
> often.
> 
> On my dual DVB-T card I had dropouts/lost data in recordings every time
the
> other tuner was changing channels.
> 
> As a band aid you can set the recorder order and enable/disable active
> scanning so only one tuner per card is used for active scanning and that
this is
> the first tuner of that card that is used for recordings.
> Basically avoiding concurrent recordings and active scan on the same card.
> 
> Regards,
> Karl
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