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xen-users
Re: [Xen-devel] Re: [Xen-users] Re: Xen 3.1 released!
Tomasz Chmielewski schrieb:
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.
It appears that saving of HVM somains needs more memory: in this
particular case, when I increased memory for dom0, about 350 MB RAM was
used in total during the domain save.
After that, save/restore was fine.
So I just removed dom0_mem entry from grub; I don't think it's needed.
--
Tomasz Chmielewski
http://wpkg.org
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