Sprint 1: test bz: CPU & Memory hotplug: DRC state info transmission for migration about tests HOT 5 CLOSED

I believe testing this feature is similar to #60. So same testcase should hold good.

1. Create guest with shared storage in NFS
2. Enabled ports 49152:49216 in iptables, virt_use_nfs -> on
3. Mount the image location in destination and started migration.
4. Perform CPU Hotplug and Hotunplug, migrate to other host and perform CPU Hotplug and Hotunplug
   CPU hot unplug should be successful

from tests.

since its similar to #60 Bala would be testing this feature.

from tests.

------- Comment From [email protected] 2017-09-06 07:45:02 EDT-------
In step 4:

"4. Perform CPU Hotplug and Hotunplug, migrate to other host and perform CPU Hotplug and Hotunplug"

I am unsure if this is what it meant but If you hotplug and unplug a CPU before migration, migrate, then hotplug and unplug a CPU in destination you will not be testing the bug reported in 123907.

The sequence of events to reproduce that issue is:

• start VM in source host
• hotplug a CPU
• migrate to destination
• hotunplug the CPU

Or, putting in a sentence:

"4. Perform CPU Hotplug, migrate to other host and perform CPU Hotunplug"

Thanks,

Daniel

from tests.

------- Comment From [email protected] 2017-09-08 01:10:55 EDT-------
(In reply to comment #5)
> In step 4:
>
> "4. Perform CPU Hotplug and Hotunplug, migrate to other host and perform CPU
> Hotplug and Hotunplug"
>
> I am unsure if this is what it meant but If you hotplug and unplug a CPU
> before migration, migrate, then hotplug and unplug a CPU in destination you
> will not be testing the bug reported in 123907.
>
> The sequence of events to reproduce that issue is:
>
> - start VM in source host
> - hotplug a CPU
> - migrate to destination
> - hotunplug the CPU
>
> Or, putting in a sentence:
>
> "4. Perform CPU Hotplug, migrate to other host and perform CPU Hotunplug"
>
>
> Thanks,
>
>
> Daniel

@daniel thanks for the review. Ack'ed on behalf of @bala.

from tests.

This is tested.

1. Hotplug 64 cpus to guest in source.
   virsh setvcpus avocado-vt-vm1-migration 64 --live
2. migrate vm to destination machine.
   virsh migrate avocado-vt-vm1-migration qemu+ssh://9.40.193.221/system --live --verbose
   [email protected]'s password:
   Migration: [100 %]
3. Hotunplug 56 cpus to guest in destination
   virsh setvcpus avocado-vt-vm1-migration 8 --live
   echo $?
   0
   Checked the respective change in cpu nos from inside guest. It's successful.

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