On Tue, Sep 09, 2014 at 11:53:49PM -0700, Matt Mullins wrote:
> On Mon, Sep 08, 2014 at 06:18:46PM +0200, Paolo Bonzini wrote:
> > What version of QEMU? Can you try the 12.04 qemu (which IIRC is 1.0) on
> > top of the newer kernel?
>
> I did reproduce this on qemu 1.0.1.
>
> What would you like me to test next? I've got both VM hosts currently running
> 3.17-rc4, so I'll know tomorrow if that works.
>
> I've been looking into this off-and-on for a while now, and this time around I
> may have found other folks experiencing the same issue:
> https://issues.apache.org/jira/browse/CLOUDSTACK-6788
> That one's a little empty on the details (do y'all know more about to whom
> that
> bug was "known" than I do?), but
> https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1297218
> sees similar symptoms due to running NTP on the host. I may try disabling
> that
> after the current round of testing-3.17-rc4 finishes up.
A summary of my testing from last week:
* 3.17-rc4 (with qemu 2.0) seems to have had the same problem as well.
* Disabling ntpd didn't help either.
* <timer name="kvmclock" present="no"/> _does_ seem to make my VM migrate
without issue.
I'm not really sure what to look at from here. I suppose leaving kvmclock
disabled is a workaround for now, but is there a major disadvantage to doing
so?
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