Re: [Xen-API] [Pkg-xen-devel] Bug#702428: HVM networking tap/vif bug (Debian bug 702428)

[Daniel Pocock <daniel@xxxxxxxxxxxxx>]

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On 17/03/13 18:38, Ian Campbell wrote:
> I'm afraid I don't know about the issue you are seeing but I can
> comment on one part:
> 
> On Sun, 2013-03-17 at 15:02 +0100, Daniel Pocock wrote:
>> while the output from dmesg suggests that the interface vif10.0
>> was created.  It appears there is confusion between the vifX.Y
>> and tapX.Y naming schemes.
> 
> An HVM guest with a network device should get *both* vifX.Y and
> tapX.Y, they are kind of two faces of the same "device". The tapX.Y
> is the emulated NIC (rtl8169 or e1000 or something) while the
> vifX.Y is the PV NIC which the guest can choose to switch over too
> (for increased perf etc) if it has a suitable driver (e.g. Linux
> PVHVM support, PV drivers for Windows etc etc).
> 
> As to why tapX.Y cannot be added to a bridge, I've no idea, sorry.
> Are you using bridge or vswitch? Can you manually enslave the tap
> device to the bridge?
> 
I'm using Open vSwitch

It halts the domU too quickly for me to try and manually add it to the
bridge

Do you have a wheezy environment where you can reproduce the problem
and verify it is not just my system?
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