[libvirt] libvirt-0.9.1 to 0.9.3-r1: managedsave/save won't start/restore at saved state

[Eric Blake]

On 07/27/2011 02:37 AM, Nicolas Sebrecht wrote:
> I'm seeing strange behaviour, here.  Any guests saved using both
> managedsave and save commands from virsh won't restore at saved state. A
> new full boot sequence happen.
>
> - Tested against libvirt v0.9.1, v0.9.2, v0.9.3-r1 (Gentoo)
> - Confirmed on three different hosts Gentoo amd64 systems.
> - Tested with gentoo and ubuntu guests.
> - Nothing relevant in /var/log/libvirt/libvirt.log or
> /var/log/libvirt/qemu/<dom>.log
>
> The "state file" /var/lib/libvirt/qemu/save/<dom>.save exists and is
> deleted when 'virsh start' is called.
>
> The new boot sequence is confirmed by :
> - VNC console checks
> - previous screen sessions lost
> - uptime
>
> I've open a bug at https://bugs.gentoo.org/show_bug.cgi?id=376333 but
> had no answer.
>
> Any idea on what could happen or how to inspect it?

Does /var/log/libvirt/qemu/<dom>.log show the qemu process getting 
started with the -incoming fd:nnn flag?  While you claim that nothing 
appeared to be relevant in that log, it might actually help to post a 
few lines of it for confirmation.

It's working for me with libvirt 0.9.3 on RHEL 6, so I'm not sure what 
to suggest that you try next.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org