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

[Paolo Bonzini <pbonzini@redhat.com>]

On 10/12/2014 16:46, Paolo Bonzini wrote:
> 
> 
> 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?

Hmm, it's thr_ipending and apic_sipi.  /me debugs.

Paolo