Re: [Xen-devel] Network not working after restore with qemu-xen windows domU and gplpv

[Fabio Fantoni <fantonifabio@xxxxxxxxxx>]

Il 26/04/2013 12:30, Fabio Fantoni ha scritto:
> Il 26/04/2013 11:36, Ian Campbell ha scritto:
>> On Fri, 2013-04-26 at 10:24 +0100, Fabio Fantoni wrote:
>>> Il 24/04/2013 17:36, Ian Campbell ha scritto:
>>>> On Wed, 2013-04-24 at 15:06 +0100, Fabio Fantoni wrote:
>>>>> I send new mail about this bug with details as required by George
>>>>> Dunlap.
>>>>> Dom0 is Wheezy 64 bit with kernel from package
>>>>> linux-image-3.2.0-4-amd64
>>>>> version 3.2.41-2, package blktap-dkms and all dependency packages for
>>>>> xen, spice and usb redirection.
>>>>> xen.git (in this build commit is
>>>>> 96ef6e88359910738905ac2e1969dc05d7d7e7dc)
>>>>>
>>>>> Other details about dom0 installation see here:
>>>>> http://lists.xen.org/archives/html/xen-devel/2013-04/msg02290.html
>>>>>
>>>>> DomU is Windows 7 pro 64 bit with gplpv build 372 debug.
>>>>>
>>>>> After restore it sees network but is not working, nor lan neither
>>>>> wan.
>>>>> Tried with both dhcp and static ip, try also e1000 network card,
>>>>> tried
>>>>> also qemu 1.4.
>>>> Is the vif device present and on the bridge in dom0? What about the
>>>> emu
>>>> device?
>>>>
>>>> Can you post the output of "xenstore-ls -fp" please.
>>>>
>>>> I notice references to openvswitch in your logs -- which script are
>>>> you
>>>> using, the one I recently posted or something else?
>>>>
>>>> Ian.
>>>>
>>>>
>>> Thanks for reply, the vif and the vif -emu are present, bridge also and
>>> is working.
>> Are the both the vif* present on the bridge? What does "ovs-vsctl show"
>> report?
>>
>>> On attachment logs of save, restore, copy of vif and xenstore command
>>> you told me, both before and after save/restore.
>> Thanks, I can see that the front and backend devices are connected ok
>> and appear to be happy and the hotplug scripts were successful.
>>
>> However I did notice that the device MAC address seems to have changed!
>> I can believe this could confuse things...
>>
>> Does this issue go away if you specify
>>          vif=['bridge=xenbr0,mac=00:16:3e:42:ae:8f']
>> in your configuration?
>>
>> Ian.
>>
> Thanks, fixed mac solve the problem.
> Is possible solve for have network working after restore without mac
> on xl configuration file also on qemu upstream?
> The last test was without openvswitch, I must redo with it and post
> "ovs-vsctl show" result?
>

This problem is still present and reported also by other users:
http://lists.xen.org/archives/html/xen-devel/2014-11/msg01267.html

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