Re: [Xen-devel] status of non-live migration of HVM with libvirt

[Olaf Hering <olaf@xxxxxxxxx>]

Anthony,

looks like this fix missed qemu-4.0.

What is your opinion on this fix? I think there was zero reply...

Olaf

On Mon, Jan 07, Olaf Hering wrote:

> Am Fri, 4 Jan 2019 17:48:31 +0100
> schrieb Olaf Hering <olaf@xxxxxxxxx>:
> 
> > Am Fri, 4 Jan 2019 16:57:55 +0100
> > schrieb Olaf Hering <olaf@xxxxxxxxx>:
> > 
> > > worth keeping (and fixing) the concept of an "offline migration"  
> > 
> > And regarding the fix, it looks like qmp_xen_save_devices_state does not 
> > need the concept of "live". Just shutdown the blockdevices and be done with 
> > it?
> 
> Anthony, it looks like 5d6c599fe1 ("migration, xen: Fix block image lock 
> issue on live migration") went too far. Why does stopping the disks at the 
> very end of the save/migrate process depend on "live"? During a migration the 
> disks have to be released either way. During "xl save" the domU may continue 
> to run, if '-c' was specified. 
> 
> It seems the 'live' parameter for xen-save-devices-state is not needed.
> 
> Olaf

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