Comment 9 for bug 1890501
Revision history for this message
| John Garbutt (johngarbutt) wrote Re: Soft reboot after live-migration reverts instance to original source domain XML | #9 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
35a32c5
(Get the code!)
We only recently have the min version of libvirt high enough for us to use > v1.3.4. So I guess its pluasable.
+1 Dan's comment on live-migration permissions, many users have access to it, although that is not the default.
+1 on Dan's comment around the data leak being one of the worst possible failure modes here.
I guess the patch is tricker for when min_libvirt is < v1.3.4.
Does this not also affect pinned CPU cores as well? Because we might pick a different set of CPUs on the desitnation hypervisor (train onwards)? With all the speclative execution stuff, that is also a possible data leak. Certainly leads to performance oddness.
Do we have an understanding of what backends use this operation mode? I remember discussing this with Cinder around multi-attach time frame, and it sounded like very few backends (if any upstream?) actually use these host based connections.