Re: [Xen-devel] live migration to qemu.git fails

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

On Wed, Aug 03, 2016 at 10:41:25AM +0100, Wei Liu wrote:
> Cc Anthony and Stefano
> 
> On Tue, Aug 02, 2016 at 11:58:05AM +0200, Olaf Hering wrote:
> > Doing a live migration of a HVM domU from staging-4.5 with its included
> > qemu-xen to staging-4.7 with qemu-xen from qemu.org (either master or
> > 2.6.0) fails:
> > 
> > # cat /var/log/xen/qemu-dm-fv-x64-sles12sp1-clean--incoming.log
> > char device redirected to /dev/pts/4 (label serial0)
> > xen_ram_alloc: do not alloc f800000 bytes of ram at 0 when runstate is 
> > INMIGRATE
> > xen_ram_alloc: do not alloc 800000 bytes of ram at f800000 when runstate is 
> > INMIGRATE
> > xen_ram_alloc: do not alloc 10000 bytes of ram at 10000000 when runstate is 
> > INMIGRATE
> > xen_ram_alloc: do not alloc 40000 bytes of ram at 10010000 when runstate is 
> > INMIGRATE
> > VNC server running on 127.0.0.1:5900
> > qemu-system-i386: Expected vmdescription section, but got 0
> > 
> > 
> > 'xl vnc domU' on the receiver side just shows "guest has not initialized
> > display yet". For some reason the domU is still alive, 'vmstat 1' via
> > ssh keeps running.
> > 
> > 'xl shutdown domU' fails. It looks like the guest OS shuts down, the ssh
> > connection gets terminated, but the domU becomes busy according to 'xl
> > top', and never shuts down.

Does the patch "xen: handle inbound migration of VMs without ioreq
server pages" from Paul fix the issue?
<1470042985-680-1-git-send-email-paul.durrant@xxxxxxxxxx>
https://lists.xen.org/archives/html/xen-devel/2016-08/msg00020.html

-- 
Anthony PERARD

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