[mythtv] DVB-EIT scanner causes missed recordings?

[William Uther]

On Fri, 28 Oct 2005 08:50:55 -0400, Daniel Kristjansson wrote:

> On Fri, 2005-10-28 at 22:16 +1000, William Uther wrote:
>
>>    I upgraded to SVN head about a week ago.  Then I started noticing
>> missed recordings.  I haven't been through the logs yet - I just
>> wanted to know if others have noticed this.  Symptoms:
>>    - Bug is intermittent, when it fails:
>>     - Recordings are listed in the status screen as being recorded/
>> tuner in use
>>     - Recordings never show up in the playback list
>>
>
> Can you run your recording with "-v record,channel" until
> it does this again? Then send me an excerpt of the log that
> includes all the messages from the last successful recording
> and say 10 minutes into the failed recording. (I want enough
> so that the EIT Scanner would normally change the channel.)
>
> My guess is it gets stuck on some channel due to the same type
> of problem that might make LiveTV or a recording not work.

I have been leaving a fair amount of debugging on for a while now.  I  
just had to find time to go through the logs.

132k of logs from last Monday night are online at: http:// 
www.cse.unsw.edu.au/~willu/mythbackend.log.2005-10-24
The logs have been trimmed a little:
  - times between 7pm and 10pm.
  - I've removed all corrupted packet and continuity count errors  
from DVB#2 (cardid 3)
As a way to find which programs in this log:
   All scheduled programs get a "Started recording:" log entry,
   whereas only those that actually started recording also get a  
"Prog title:" entry.

Here are just those log lines: (forgive the housemates some of their  
questionable taste...)

2005-10-24 19:28:03.242 Started recording: Supernanny "Larmer  
Family": channel 1001 on cardid 2, sourceid 1
2005-10-24 19:28:03.885 Started recording: Mythbusters "Killer Brace  
Position": channel 1003 on cardid 3, sourceid 1
2005-10-24 19:28:04.135 Started recording: Australian Idol "Final Six  
Verdict": channel 1078 on cardid 1, sourceid 1
2005-10-24 19:28:04.769 Prog title: Mythbusters
2005-10-24 20:30:02.849 Started recording: South Park "How To Eat  
With Your Butt": channel 1003 on cardid 3, sourceid 1
2005-10-24 20:30:03.128 Started recording: Grey's Anatomy "Make Me  
Lose Control": channel 1007 on cardid 2, sourceid 1
2005-10-24 20:36:26.441 Prog title: South Park
2005-10-24 21:00:02.820 Started recording: Drawn Together: channel  
1003 on cardid 3, sourceid 1
2005-10-24 21:00:03.658 Prog title: Drawn Together
2005-10-24 21:13:02.538 Started recording: Media Watch: channel 1002  
on cardid 1, sourceid 1
2005-10-24 21:30:03.228 Started recording: 24 "Day Four: 2:00 AM -  
3:00 AM": channel 1007 on cardid 2, sourceid 1
2005-10-24 21:58:02.337 Started recording: Queer as Folk: channel  
1003 on cardid 1, sourceid 1

The South Park recording does seem to start late (note the 6 minute  
gap between the 'Started Recording' and the 'Prog title' log entries  
for this show).
Also interesting is that the recordings that work are all on card 3.
Cards 1 and 2 are FusionHDTV Lite cards - they normally work much  
better than the 3rd card
Card 3 is a VisionPlus HDTV (Twinhan chipset)

looking in my kernel logs around that time I see a whole lot of lines  
like this:

Oct 22 18:28:03 dundood kernel: bt878(0): irq FDSR risc_pc=0f64f008

I'm going to switch the eit binaries back in, and see if I can figure  
out when my cards die.

Be well,

Will          :-}