[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen 4.2.0-rc4 issues with DVB tuner
On Mon, Sep 17, 2012 at 10:09 PM, Javier Marcet <jmarcet@xxxxxxxxx> wrote: >>> >> I wonder whether it would work within a DomU with the PCIe tuner >>> >> passed through. >>> > >>> > I've a 4 channel security card passed in and it works nicely. The >>> > trick is that you need 'iommu=soft' on the domU command line. >>> >>> All right. But is it normal that it does not work under the dom0? >> >> No. PV domU and PV dom0 are pretty much the same in the way of handling >> interrupts, ports, etc. >> >> If you crank up the debug level of the kernel (debug loglevel=8) and >> of the driver do you get anything obvious? What about the questions >> I've asked? > > Booting with 'debug loglevel=8' as kernel parameters I still get no errors or > warnings anywhere. > > I'm out of ideas and I don't have any other PCIe tuner card to try. > > It is looking more and more as a cx23885 (the module the card uses) issue. > It is really odd since I you get some data, but just like if there was very > poor reception, more noise than signal. > > If you can think of some other way to debug this, I'll try it. I've just realized that I have quite a lot of debug options in the dvb driver. Right now I have one tuner in use, but when it finishes (or tomorrow) I'll enable some debug output in the dvb subsystem and the cx23885 module in particular and see whether I can get some more info. Even so, if you deem worth checking something else, I'm open to try anything. -- Javier Marcet <jmarcet@xxxxxxxxx> _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |