Re: [Xen-devel] [Spice-devel] Vdagent not working on xen linux hvm DomUs

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Dec 06, 2013 at 02:55:46PM +0000, Wei Liu wrote:
> On Fri, Dec 06, 2013 at 03:49:30PM +0100, Fabio Fantoni wrote:
> > Il 06/12/2013 15:40, Wei Liu ha scritto:
> > >On Fri, Dec 06, 2013 at 02:51:50PM +0100, Fabio Fantoni wrote:
> > >>Il 06/12/2013 14:17, Wei Liu ha scritto:
> > >>>On Fri, Dec 06, 2013 at 02:10:24PM +0100, Fabio Fantoni wrote:
> > >>>[...]
> > >>>>I tried 2 cases with xen_emul_unplug=never:
> > >>>>- with xen platform disabled (xen_platform_pci=0 plus konrad patch)
> > >>>>and pci=nomsi
> > >>>>- with xen_platform_pci=1 and without pci kernel parameter
> > >>>>on both cases qemu crash with same error:
> > >>>>xen_ram_addr_from_mapcache, could not find 0x7fdecf624968
> > >>>>
> > >>>>On your virtio net test you have added only 'model=virtio-net-pci'
> > >>>>on vif line of domU's xl cfg or you did other changes?
> > >>>>
> > >>>No, nothing more. But I'm using Xen's QEMU upstream, not vanilla QEMU.
> > >>I'm using xen's upstream qemu (master of
> > >>git://xenbits.xen.org/qemu-upstream-unstable.git)
> > >>
> > >Not only the branch is important but also the changeset.
> > >
> > >I'm using the hash specified in Config.mk
> > 
> > qemu of my tests about virtio:
> > git log
> > commit b97307ecaad98360f41ea36cd9674ef810c4f8cf
> > Author: Matthew Daley <mattjd@xxxxxxxxx>
> > Date:   Thu Oct 10 14:10:48 2013 +0000
> > 
> >     xen_disk: mark ioreq as mapped before unmapping in error case
> > 
> 
> There's lots of changesets between this one and the one I use so doing
> bisection is the only way to find out where the regression was
> introduced.
> 

And, if you're really going to look into this I suggest you start with
virtio related changesets, then Xen mapcache changesets (I suspect
there's many changes to this code, but anyway it is worth looking at).

Good luck.

Wei.

> Wei.

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