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

[Nicolas Sebrecht]

The 02/08/11, Nicolas Sebrecht wrote:

> I'm stuck!
> 
> As told before, I have one working (in production) system and others
> failing Gentoo systems (including the testing machine).
> 
> I've check the working system against the testing machine and looked for
> differences. I did remove differences one by one (luckily systems are
> very near from each other) and couldn't have the testing machine to
> work.
> 
> I've check Linux kernel configuration (first) and the whole system for
> installed packages and compilation options. On each difference found
> I've done:
> - compilation and reinstallation of ALL the packages;
> - reboot;
> - tests.
> 
> Now, I have almost two exact same systems behaving differently. Some
> minor differences remain about installed packages (missing on testing):
> - lshw
> - pv
> - colorgcc
> - autofs
> - iperf
> 
> Hardware isn't the same, though. Main differences are:
> - Intel(R) Xeon(R) CPU E5420  @ 2.50GHz (cpu family : 6)
>   hardware RAID
> - Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz (cpu family : 6)
>   software RAID
> 
> Ouch!

So, I've tried yet another thing. I made a tarball of the whole working
system and installed it on the testing bare metal (Core i3-2100).

The 'start' command after 'managedsave' still fails. Then, I tried to
change kvm related kernel compilation option and compiled kvm-intel as
module: fails again.

Did the hardware requirements change for libvirt/qemu-kvm? I can't
understand why the _exact same_ system works on a hardware and not on
another (where previously it worked perfectly well).

-- 
Nicolas Sebrecht