On Tue, 2009-01-13 at 22:05 +0100, Alexander Graf wrote: > On 13.01.2009, at 21:14, Anthony Liguori <[email protected]> wrote: > > > Alexander Graf wrote: > >> Hi, > >> > >> while I don't fully understand the problem, here's what I > >> experience so far: > >> > >> When using an openSUSE 11.0 kernel (2.6.25) in the guest, virtio on > >> tap > >> breaks with current KVM git, while it used to work before (haven't > >> bisected, definitely worked in kvm-78, but is probably due to > >> Anthony's > >> rewrite). It shows the following message (comes from qemu): > >> > > > > There were a couple of old-guest-breaking regressions. I think > > we've fixed all of them but there could be more. Are you using the > > latest kvm-userspace?
See: http://lists.gnu.org/archive/html/qemu-devel/2009-01/msg00574.html > This one is definitely due to the broken guest kernel. I applied the > patch mark mentioned to ours and things started working. > > So the only way I can think of to 'fix' it is by detecting broken > guests. We could supply a host mask of 0xffffffff and see if tge guest > feature mask is tge same. If so, feature masking is probably broken. Nice idea, but no way of making the guest through feature detection negotiation, I don't think. Cheers, Mark. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
