Rainer Schöpf
2005-Jun-20 14:46 UTC
[Xen-users] Xen 2.0 testing: some sort of DMA failure for TV card
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 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
David Muench
2005-Jun-20 16:30 UTC
Re: [Xen-users] Xen 2.0 testing: some sort of DMA failure for TV card
Hmm. I have 3 PVR-250''s in my dom0 and they''re running great. I''m using ivtv 0.2.0-rc3j and xen 2.0.6. I haven''t tried presenting them to a domU yet, but that is my eventual plan, to migrate my mythtv backend to a domU. Dave On 6/20/05, Rainer Schöpf <rainer.schoepf@proteosys.com> wrote:> 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 > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- David Muench - davemuench@gmail.com Jabber ID: dave@jabber.wasteland.org _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Rainer Schöpf
2005-Jun-20 17:55 UTC
Re: [Xen-users] Xen 2.0 testing: some sort of DMA failure for TV card
On Mon, 20 Jun 2005, David Muench wrote: > Hmm. I have 3 PVR-250''s in my dom0 and they''re running great. I''m > using ivtv 0.2.0-rc3j and xen 2.0.6. I haven''t tried presenting them > to a domU yet, but that is my eventual plan, to migrate my mythtv > backend to a domU. Ahh, good to know, thanks. I''ll play around some more then. Rainer _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users