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Re: [Xen-users] dual vga passthrough issue in xen unstable



I did some furthor testing and found out that this is perfectly
reproducable and keeps crashing everytime. I tested this with
different kernel (3.7.4 and 3.8.2), different domU config options
(pae, apic, acpi, pci_msitranslate, pci_permissive,
pci_powermanagement etc.) and with both traditional and upstream QEMU.

So since this seems to be a bug and not some usage issue, I'm
including xen-devel on this.

Any help on resolving or even debugging this furthor would be welcome.

(System: Debian Wheezy, Vanilla 3.8.2 kernel, latest xen-unstable
staging git tree)



2013/3/3 Matthias <matthias.kannenberg@xxxxxxxxxxxxxx>:
> Hi,
>
> I have the following problem:
>
> I have two vga cards, an AMD HD5450 and a HD5700.. When I hide both
> via pciback.hide at boot time, start a win7 domU passing through one
> of the cards, vga passthrough works fine, but when i then shutdown the
> win7 domU, the whole dom0 hangs and i have to reset the whole server.
>
> When I do the same with only one vga hidden and one for the dom0, it
> works without problems.
>
> Logs don't show something suspiciously and i don't know how i can
> debug this, so unfortunatly i'm in a bit of a dead end here. Does
> anyone have an idea what can cause this or how i can resolve this?

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