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

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx [mailto:win-pv-devel-
> bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Fabio Fantoni
> Sent: 30 January 2015 14:42
> To: Paul Durrant; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [win-pv-devel] Windows server 2012 R2 domUs problem after
> save/restore
> 
> Il 30/01/2015 15:31, Paul Durrant ha scritto:
> >> -----Original Message-----
> >> From: win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx [mailto:win-pv-devel-
> >> bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Fabio Fantoni
> >> Sent: 30 January 2015 14:17
> >> To: Paul Durrant; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >> Subject: Re: [win-pv-devel] Windows server 2012 R2 domUs problem
> after
> >> save/restore
> >>
> >> Il 28/01/2015 21:14, Paul Durrant ha scritto:
> >>>> -----Original Message-----
> >>>> From: Fabio Fantoni [mailto:fabio.fantoni@xxxxxxx]
> >>>> Sent: 28 January 2015 09:19
> >>>> To: Paul Durrant; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >>>> Subject: Re: [win-pv-devel] Windows server 2012 R2 domUs problem
> >> after
> >>>> save/restore
> >>>>
> >>>> 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.
> >>>>
> >>> I pushed my big series into xenbus today. You should definitely take
> that; it
> >> fixes several bugs in FIFO event channels and a couple of other things.
> >>>     Paul
> >> Thanks.
> >> I tested now new pv drivers build on a windows 7 64 bit domU.
> >> On update I saw a strange thing, xenvif and xennet even if updated
> >> showed message "Ready to use" instead "Driver updated".
> >> After update of all drivers components I rebooted windows but it didn't
> >> start, stay blocked on windows logo, seems there is a critical
> >> regression in latest pv drivers build :(
> >> DomU's qemu log with xen-platform trace in attachment.
> >>
> > I don't see either XENVIF or XENNET loading at all so perhaps the problem is
> with PV storage and Windows is unable to load the drivers? Does this happen
> if you fresh-install a VM? I tested on Win7 64 and didn't see any problem, but
> it was a fresh VM in my case.
> >
> >    Paul
> 
> Is a windows 7 with only few things installed that I use for new xen and
> pv drivers testing only.
> There was installed previous official builds from here:
> http://xenproject.org/downloads/windows-pv-drivers.html
> Previous update was 2-3 weeks ago and reboot was succesfull, update of
> today not.
> I didn't have installed/updated any other software in this domU between
> the latest 2 pv driver updates.
> 

Ah, I wonder if I've unwittingly introduced a dependency on the per-vpu event 
channel callback patch into Xen. I did my testing with that in place. I'll try 
running on 4.5.

  Paul

> 
> Thanks for any reply and sorry for my bad english.
> 
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