Re: [win-pv-devel] Windows server 2012 R2 domUs problem after save/restore

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 22/01/2015 16:00, Paul Durrant ha scritto:
>> -----Original Message-----
>> From: win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx [mailto:win-pv-devel-
>> bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Fabio Fantoni
>> Sent: 22 January 2015 10:10
>> To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
>> Cc: Paul Durrant
>> Subject: Re: [win-pv-devel] Windows server 2012 R2 domUs problem after
>> save/restore
>>
>> Il 19/01/2015 16:30, Fabio Fantoni ha scritto:
>>> Hi, I installed winpv driver build of 15 january on Windows server
>>> 2012 R2 standard 64 bit and have problem after save/restore.
>>> xl save/restore didn't show any errors, trying to connected with rdp I
>>> was unable and with spice I saw screen with data and time (time update
>>> after restore) but doing ctrl+alt+canc it changed something in screen
>>> only after 5-10 minutes and still without showing login field.
>>>
>>> Dom0 is Wheezy with kernel 3.16.7-ckt2-1~bpo70+1 (from official
>>> backport), build of xen based on start of 4.4.2-pre and qemu 1.6 from
>>> xen build.
>>> DomU xl cfg:
>>>> name='w2012r2-01'
>>>> builder="hvm"
>>>> memory=8192
>>>> vcpus=4
>>>> acpi_s3=0
>>>> acpi_s4=0
>>>>
>> vif=['bridge=xenbr2,mac=00:16:3e:24:b7:d7','bridge=xenbr10,mac=00:16:3e:
>> 18:2a:f2,script=vif-openvswitch']
>>>> #vfb=['vnc=1,vncunused=1,vnclisten="0.0.0.0",keymap=it']
>>>> disk=['/mnt/vm/disks/w2012r2-
>> 01.disk1.xm,raw,hda,rw',',raw,hdb,ro,cdrom']
>>>> boot='dc'
>>>> device_model_version="qemu-xen"
>>>> viridian=1
>>>> vnc=0
>>>> keymap="it"
>>>> on_crash="destroy"
>>>> vga="stdvga"
>>>> spice=1
>>>> spicehost='0.0.0.0'
>>>> spiceport=6000
>>>> spicepasswd="test"
>>>> spicevdagent=1
>>>> spice_clipboard_sharing=0
>>>> spiceusbredirection=4
>>>> soundhw="hda"
>>>> localtime=1
>>> I added in attachments qemu logs (before and after save/restore) with
>>> xen trace enabled.
>>>
>>> If you need more informations tests tell me and I'll post them.
>>>
>>> I have also another small question:
>>> is ms_vm_genid needed for this case? for what I understand is only for
>>> active directory controller and this it isn't.
>>>
>>> Thanks for any reply and sorry for my bad english.
>>>
>>>
>> I also tried to uninstall the pv drivers from control panel but windows
>> crash, minidump in attachments.
> I'm re-working the FIFO event channel code at the moment so I'll run a quick 
> suspend/resume test when I'm done.
>
>    Paul

Thanks for your reply.
I did other tests and seems that save/restore problems with windows 2012
was for missed ms_vm_genid="generate" even if clean for now (no active
directory or other server services enabled nor domain member).
Remain windows crash on winpv drivers uninstall with minidump refer to
xenvif and other important and occasional problem:
network not working after some time and after 2-3 minutes all windows
become unusable.
I hope these problem will be solved by new network pv driver patches,
I'll test them ASAP when build with them will be ready.

Thanks for any reply and sorry for my bad english.

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