On Tuesday 04 December 2007 06:55:42 Wes Hardaker wrote:
> So, I have a mythtv box running on FC6. At one point the kernel
> upgraded to .22 and the number of DMA errors went up, so I forced it
> to boot into .20 again and that made things better. But still on
> occasion (with two PVR-150s in the system) it would throw DMA errors
> and eventually crash.
>
> Then, just the other day I upgraded the driver to 0.10.6 since it
> looked like it would solve the problem. But it didn't... It hasn't
> crashed hard, but the DMA errors do seem to still be appearing but
> back with a high frequency again.
>
> So I'm left with choices:
>
> 1) go back to using the 0.10.5 modules that came with the rpm'ed
> kernel 2) try the 1.0.3 module with the .22 kernel, but I'd assume
> that doesn't hold a huge code change over whatever is causing the
> problem?
>
> ugh. help? I've been doing google searches for a month and it's
> finally time to actually beg instead of poking and failing.
Looks like 0.10.6 is the one to use. ivtv 0.10.6 doesn't prevent DMA
errors, it just prevents the card from crashing. The erroneous DMA
transfers are retried to prevent loss of data.
Can you give a few sample lines from the log with the DMA errors?
Note that ivtv in the upcoming kernel 2.6.24 will have the same DMA
error fixes as 0.10.6.
Regards,
Hans
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