Hans,
You didn't make clear what you fixed.  You made it to run in PIO mode?
Anyhow, I am sure my DMA errors are caused by cpufreq, but I choose a
silent PC over an ideally functioning tuner card.  I have an AMD
Turion64 running on an nForce4 motherboard, which I'd expect is a rather
unusual combination.

> On Sunday 18 February 2007 11:25, Hans Verkuil wrote:

> I've fixed this in the ivtv trunk. It has seen only minimal testing, 
> though. I'm interested if the CPU load is lower for you with this 
> driver: on my system the CPU load is just a few percent. Surprisingly 
> low, in fact.
> 
> There are in general two main causes for DMA errors: you have some CPU 
> frequency changer running or you are using soft/hardware RAID. 
> Depending on the chipset you are using (VIA is indicated) you can get 
> these errors. It's really a buggy DMA engine on the conexant chip.
> 
> Regards,
> 
>       Hans



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