[Xen-users] Xen 2.0 testing: some sort of DMA failure for TV card

[Rainer Schöpf <rainer.schoepf@xxxxxxxxxxxxx>]

Hi,

I've been trying xen (2.0-testing) on different hardware. Everything works 
fine so far, except on my system at home: the Haupauge PVR 250 TV card 
(with hardware mpeg encoder) does not work with xen.

The ivtv for that card driver seems to work as such: if I turn on 
debugging, I see the interrupts and everything. Only the DMA transfers to 
get the mpeg data out of the card get a timeout. Here the debugging output 
is not really helpful.

I suspect the ivtv driver does something it isn't allowed to do even in 
dom0.

How should I proceed to find out where the problem lies?

  Rainer Schöpf

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