[mythtv-users] play back freezes

[Al McIntosh]

I have a 1.80GHz Intel with 1G Ram mythfrontend/mythbackend currently 
running mythtv-*-0.20.1-157 and ivtv-0.10.2-128 .

Periodically during playback of recordings and recently during liveTV 
playback freezes and I can eventually exit by hitting Esc, or it just 
quits on it's own not sure, the point being mythfrontend does not lock 
up. In any case, the following was in the logs at the time of the incident:

dmesg:
May 29 22:06:13 nelson kernel: ivtv0: All encoder MPEG stream buffers 
are full. Dropping data.
May 29 22:06:13 nelson kernel: ivtv0: Cause: the application is not 
reading fast enough.

frontend output:

07-05-29 22:06:15.978 Checking to see if there's a new livetv program to 
switch to..
2007-05-29 22:06:17.357 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:18.857 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:20.022 RingBuf(/myth/tv/1204_20070529220341.mpg): 
Waited 8.0 seconds for data to become avai
lable...
2007-05-29 22:06:20.022 Checking to see if there's a new livetv program 
to switch to..
2007-05-29 22:06:20.362 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:21.861 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:23.363 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:24.865 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:26.364 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:27.866 NVP: Prebuffer wait timed out 10 times.
2007-05-29 22:06:28.158 TV: Attempting to change from WatchingLiveTV to None
2007-05-29 22:06:28.163 RingBuf(/myth/tv/1204_20070529220341.mpg) Error: 
Waited 16 seconds for data, aborting.
[mpeg2video @ 0x59821e4]ac-tex damaged at 26 9
[mpeg2video @ 0x59821e4]Warning MVs not available
2007-05-29 22:06:28.706 TV: Changing from WatchingLiveTV to None


backend output:


7-05-29 22:03:42.215 MPEGRec(/dev/video0) Warning: Error getting codec 
params using old IVTV ioctl
                        eno: Invalid argument (22)
2007-05-29 22:03:42.237 TVRec(1): 
SetFlags(RecorderRunning,RingBufferReady,) -> RunMainLoop,CancelNextRecordi
ng,AskAllowRecording,NeedToStartRecorder,RecorderRunning,RingBufferReady,
2007-05-29 22:03:42.240 TVRec(1): ClearFlags(NeedToStartRecorder,) -> 
RunMainLoop,CancelNextRecording,AskAllo
wRecording,RecorderRunning,RingBufferReady,
2007-05-29 22:03:45.496 TVRec(1): SetFlags(FrontendReady,) -> 
FrontendReady,RunMainLoop,CancelNextRecording,A
skAllowRecording,RecorderRunning,RingBufferReady,
2007-05-29 22:06:28.219 StopLiveTV(void) curRec: 0x8989448 pseudoRec: 0
2007-05-29 22:06:28.436 TVRec(1): Changing from WatchingLiveTV to None