[mythtv-users] mythbackend hang while watching live TV

[Tom Walsh]

David Rees wrote:

> I'm running 0.14 from ATrpms on FC1, but I have seen this with 0.13 as 
> well.  I'm using two PVR-250s and ivtv-0.1.9.
>
> Tonight, while watching live TV, the backend generated these messages:


I had some mythtvfrontend  lockup issues with a Tyan S2465AN 
motherboard: Athlon 2800 XP processor.  This was with MythTV-0.13.  
Since then, I cleared up most of the problems by adding the "noapic 
nolapic pci=noacpi acpi=off video=vc:0-0" statements into LILO 
(/etc/lilo.conf), please refer to the MythTV docs regarding the video= 
statement.  One huge help with problems I was having with occasional 
lockups with the PVR-350, while jumping back while viewing a recorded 
show, was to upgrade to MythTV-0.14.  The 0.14 revision has a huge 
number of PVR-350 corrections that may also apply to your PVR-250, worth 
a try?

Regards,

TomW

>
> 2004-02-03 22:15:23 MainServer::HandleAnnounce Playback
> 2004-02-03 22:15:23 adding: mythtv as a client (events: 0)
> 2004-02-03 22:15:23 MainServer::HandleAnnounce Playback
> 2004-02-03 22:15:23 adding: mythtv as a client (events: 0)
> 2004-02-03 22:15:23 adding: mythtv as a remote ringbuffer
> 2004-02-03 22:15:24 Changing from None to WatchingLiveTV
> Couldn't read data from the capture card in 15 seconds.  Game over, man.
> 2004-02-03 22:22:37 Changing from WatchingLiveTV to None
> Starting up as the master server.
> 2004-02-03 22:55:01 mythbackend version: 0.14.20040123-1 www.mythtv.org
>
> At this point (after the message at 22:15:24), the backend was not 
> responsive, through the status port would not respond, either.
>
> The frontend generated these messages:
> 2004-02-03 22:15:26 Changing from None to WatchingLiveTV
> 2004-02-03 22:18:19 prebuffering pause
> QTime::setHMS Invalid time 80:00:00.000
> QDate::setYMD: Invalid date 2004-20-22
> QDateTime::fromString: Parameter out of range
> QTime::setHMS Invalid time 80:00:00.000
> QDate::setYMD: Invalid date 2004-20-22
> QTime::setHMS Invalid time 80:00:00.000
> QDate::setYMD: Invalid date 2004-20-22
> 2004-02-03 22:22:24 prebuffering pause
> Waited 2 seconds for data to become available, waiting again...
> Waited 2 seconds for data to become available, waiting again...
> Waited 2 seconds for data to become available, waiting again...
> Waited 2 seconds for data to become available, waiting again...
> Waited 2 seconds for data to become available, waiting again...
> Waited 2 seconds for data to become available, waiting again...
> 2004-02-03 22:22:36 Waited too long for ringbuffer pause..
> 2004-02-03 22:22:37 Waited too long for ringbuffer pause..
> 2004-02-03 22:22:45 ReadStringList timeout (quick).
> Remote encoder not responding.
> 2004-02-03 22:22:46 Changing from WatchingLiveTV to None
> 2004-02-03 22:22:46 Changing from None to None
> 2004-02-03 22:23:23 ReadStringList timeout.
> Errm, event socket just closed.
> Connection to backend server lost
> 2004-02-03 22:57:18 Connecting to backend server: 127.0.0.1:6543 (try 
> 1 of 5)
>
> ivtv didn't report anything abnormal until after I shutdown the backend:
>
> Feb  3 22:54:51 mythtv mythbackend: mythbackend shutdown succeeded
> Feb  3 22:54:52 mythtv kernel: ivtv: giving up waiting for DMA pending 
> clear
> Feb  3 22:55:00 mythtv mythbackend: mythbackend startup succeeded
>
> So this problem sounds like the issues others have had while watching 
> live TV.  I hope the log entries help.
>
> -Dave
>
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-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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