Greetings,

I'm working on getting the last few issues cleaned up with a MythTV 
setup.  One of the issues I have, is that whenever I access the first 
tuner on my PVR-500, I get a series of DMA warnings/errors:

May  1 00:06:08 mythtvserver1 kernel: ivtv1 warning: ENC DMA ERROR b
May  1 00:06:08 mythtvserver1 kernel: ivtv1 warning: encoder MPEG: 
offset 0 -> 128
May  1 00:06:08 mythtvserver1 kernel: ivtv1 warning: encoder MPEG: 
offset 128 -> 104
May  1 00:06:10 mythtvserver1 kernel: ivtv1 warning: ENC DMA ERROR b
May  1 00:06:10 mythtvserver1 kernel: ivtv1 warning: encoder MPEG: 
offset 104 -> 128
May  1 00:06:10 mythtvserver1 kernel: ivtv1 warning: encoder MPEG: 
offset 128 -> 36
May  1 00:06:15 mythtvserver1 kernel: ivtv1 warning: ENC DMA ERROR b
May  1 00:06:15 mythtvserver1 kernel: ivtv1 warning: encoder MPEG: 
offset 36 -> 128
May  1 00:06:15 mythtvserver1 kernel: ivtv1 warning: encoder MPEG: 
offset 128 -> 0
May  1 00:06:22 mythtvserver1 kernel: ivtv1 warning: ENC DMA ERROR b
May  1 00:06:22 mythtvserver1 kernel: ivtv1 warning: encoder MPEG: 
offset 0 -> 128
May  1 00:06:22 mythtvserver1 kernel: ivtv1: DMA TIMEOUT 00000001 0

Now, the above seems to only to occur on ivtv1 (the first tuner of the 
pvr-500).  I also have a pvr-150 installed, which consumes ivtv0 (video0).

With video0 in use (recording), if I cat from video1 (first tuner), I 
almost immediately  get the above.  If I then turn around and cat from 
video2 (second tuner), it works fine with no errors.

I notice that all three ivtv devices are currently on the same 
interrupt.  Is this a cause for concern?

Would moving the cards impact this (the problem, not the interrupts)?

Changing the interrupts?

Indications of a bad board?

All of  the above?

None of  the above?

TIA
Brian




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