[Qemu-devel] Ubuntu 12.0.4.3 freeze with -cpu host on E5-2680

[Peter Lieven]

Hi,

I just got customer feedback that Ubuntu 12.04.3 freezes right after the 
installer is started.
On the system in question I use rather old qemu-kvm-1.2.0 and kvm-kmod 3.5.4. 
The problem
disappears if I drop the -cpu host and use -cpu kvm64. It also works with 
Ubuntu 12.04.2.
The main difference is that Ubuntu 12.04.2 uses Linux 3.5 and Ubuntu 12.04.3 
uses Linux 3.8.

Is anyone aware of a patch that got in recently or is this a new issue?

I meanwhile try if this is reproducible with newer qemu and/or kvm-kvmods.

Thanks,
Peter