Re: [Qemu-devel] broken cross-version migration from 2.2 to 2.1

[Paolo Bonzini]

On 10/12/2014 16:38, Igor Mammedov wrote:
> CCing to migration maintainers a couple migration regressions in 2.2:
> 
> 1st error:
> 
> source: 
>  qemu-system-x86_64-2.2 -enable-kvm -m 512  -monitor stdio -M pc-i440fx-2.1
>  (qemu) stop
>  (qemu) migrate "exec:gzip -c > STATEFILE.gz"
> 
> target:
>  qemu-system-x86_64-2.1 -enable-kvm -m 512  -monitor stdio  -incoming "exec: 
> gzip -c -d STATEFILE.gz" -M pc-i440fx-2.1
>  qemu: warning: error while loading state for instance 0x0 of device 'serial'
>  qemu-system-x86_64-2.1: load of migration failed: No such file or directory
> 
> 2nd error:
> 
> source:
>  qemu-system-x86_64-2.2 -enable-kvm -smp 2 -m 512  -monitor stdio   -M 
> pc-i440fx-2.1
>  (qemu) stop
>  (qemu) migrate "exec:gzip -c > STATEFILE.gz"
> 
> target:
>  qemu-system-x86_64-2.1 -enable-kvm -smp 2 -m 512 -monitor stdio -M 
> pc-i440fx-2.1 -incoming "exec: gzip -c -d STATEFILE.gz"
>  qemu: warning: error while loading state for instance 0x1 of device 'apic'
>  qemu-system-x86_64-2.1: load of migration failed: No such file or directory
> 
> 

A lot of subsections were added between 2.1 and 2.2.  Which ones are
being migrated in these cases?

Paolo