[libvirt] [PATCH 2/2] qemu: Refresh RTC adjustment on qemuProcessReconnect

[Michal Privoznik]

On 03.05.2016 08:14, Peter Krempa wrote:
> On Mon, May 02, 2016 at 18:35:35 +0200, Michal Privoznik wrote:
>> On 02.05.2016 16:36, Peter Krempa wrote:
>>> On Fri, Apr 29, 2016 at 18:43:10 +0200, Michal Privoznik wrote:
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1139766
> 
> [...]
> 
>>> Any failure in qemuProcessReconnect results into libvirtd killing the
>>> process. I don't think this failure is criticall enough to allow such
>>> brutality.
>>>
>>> Peter
>>>
>>
>> Well, if guest has updated its RTC while we were not running, we would
>> report spurious time in our XML. Since we are doing something similar
>> for ejectable disks, i.e. CDROMs too, I presumed it is okay. But I don't
>> mind changing this to something softer.
> 
> As long as it's guaranteed that any target qemu supported by libvirt 
> does support the interrogation you are going to do it's probably fine.
> 
> The problem with your patch is that qom-get was added in qemu 1.1
> whereas libvirt supports versions since 0.12
> 
> This would effectively reduce compatibility to 1.1 which we should not
> do as a side effect of a unrelated change.

Okay, so if I make that check less drastic, do I have your ACK or do you
want me to send v2?

Michal