Re: KVM-86 not exposing 64 bits CPU anymore, NICE

[Mark McLoughlin <markmc@redhat.com>]

On Thu, 2009-06-04 at 09:20 +0200, Gilles PIETRI wrote:

> I'm quite pissed off. I just upgraded to kvm-86 on a host that has 
> worked nicely on kvm-78 for quite some time. But since I was fearing the 
> qcow2 corruption issues, I wanted to upgrade kvm-86. After testing the 
> performance, I decided to switch. How stupid that was. That was really 
> putting too much trust in KVM.

Jim has already responded with details on the first for the particular
issue, but speaking more generally ...

The kvm-XX releases are snapshots of the development tree. They do not
go to through the kind of stabilisation cycle you would expect from a
new kernel release, for example.

If you want a KVM version you can trust, use the latest qemu-kvm-0.x.y
release with the stock version of kvm.ko that comes with your kernel or,
if you need particular new features, the latest kvm-kmod-2.6.z release.

Cheers,
Mark.