On Thu, 2018-10-18 at 16:21 +0100, Daniel P. Berrangé wrote:
On Thu, Oct 18, 2018 at 05:16:19PM +0200, Björn Persson wrote:
> tonynelson(a)georgeanelson.com wrote:
> > Stephen Gallagher said:
> > > I can't see anyone putting a Server or Atomic Host into
hibernation, though. ...
> > What happens when the "server" is a (K)VM on a desktop/laptop that is
hibernated? I know what I'd want to happen.
> When I suspend my Fedora laptop (not hibernate because that doesn't
> work) with CentOS running in KVM, there is a rather high probability
> that the VM will enter an infinite loop when resumed.
That will likely be QEMU trying to inject many hours worth of
interrupts to the guest. In theory it should eventually fix
itself, but it can take a very long time to recover - gets worse
the longer you have been hibernating for too
Happens all the time for me, it is not a good experience.
Isn't there a way to save the instance from the hypervisor *and* on top
of that emulate a quick S3 to the guest so that it will just adjust the
clock w/o causing the VM to lock up ?
Sr. Principal Software Engineer
Red Hat, Inc