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

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

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

> > > You can probably try to generate core file and use gdb to get the
> > > backtrace to see what QEMU is trying to access.
> > Is there an howto for it please?
> There's lots of tutorial on how configure Linux to let a process be able
> to generate core file, how to debug core file with GDB. It's not
> QEMU-specific.
>
> Wei.
>
> > > Wei.
> > >
> > > > Thanks for any reply.

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