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xen-users
[Xen-devel] Re: [Xen-users] Re: Xen 3.1 released!
Petersson, Mats schrieb:
- 32-on-64 PV guest support (run PAE PV VMs on a 64-bit Xen!); and
I checked - indeed it works. It is possible to create a 32
bit PV guest
on a 64-bit Xen.
However, migration of such hosts doesn't seem to work:
whenever I try to
migrate a 32-bit PV guest from a 64-bit Xen to a 32-bit Xen (or the
other way around), it fails, and the guest domain is not
reachable anymore.
No, I seem to remember that this is a known bug - check the Xen Devel
mailing list archive for the last few weeks, I'm 99% sure there is a
mention about this particular problem, and I don't think it's
(completely) fixed in unstable yet either.
I didn't find any posts about it - at least, not after the 3.1 release
date (maybe it was discussed earlier).
Also, there's one more feature which doesn't work for me:
- Preliminary save/restore/migrate support for HVM (e.g. Windows) VMs;
What does "preliminary" mean here? I tried saving/restoring HVM domains,
but it just doesn't work.
When I try to do /etc/init.d/xendomains stop, it does something for a
long time, and then, my SSH session is just disconnected.
When I log in again, xend doesn't work anymore:
# xm list
Error: Unable to connect to xend: Connection refused. Is xend running?
When I start xend again, and then start xendomains, there is my domain
in a weird state:
# xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 256 2 r----- 134.9
migrating-w2k3-001 2 1759 1 ---s-- 64.4
Similar happens when I try to save the domain manually:
# xm save w2k3-001 /srv/check-2k
And Xen server restarted.
(...)
I inspected the logs, and it was the OOM-killer. Should it ever happen
when saving a guest domain? Xen host has 256 MB RAM for dom0 (3 GB
total), Xen guest 1.7 GB.
--
Tomasz Chmielewski
http://wpkg.org
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