On 7/18/07, Dieter Tschanz <[EMAIL PROTECTED]> wrote:
> I increased the amount of enc_yuv_buffers to 4MB and changed the thread
> priority. Works perfect now. Thanks for the hint!
> One problem is remaining, related to DMA TIMEOUT. Changing pci latency did
> not help. Default all devices are running on a latency of 64. I set the
> latency for the pvr to 96 but the problem still remains. What happens is
> that when using VBI together with the YUV and PCM encoders (MPEG encoder is
> not used on ivtv0), the driver stops delivering data. Reinsert of the
> modules does not work and the 30 seconds cold start is necessary.

Try giving your PATA/IDE controller(s) a higher latency and see if
this helps. It could be the controller is not able to keep up with the
data that the pvr card generates.

I would leave the rest of the system at 64 and put the PATA/IDE
controllers at 96.

SATA controllers usually are hooked up to the PCIe bus where latency
does not exist in this form.

Greets
Sander

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