Hi!

I'm a long time KVM user, but I've encountered a problem that I couldn't solve.
I've switched my good old Core2 Quad with gentoo (2.6.27 kernel) for a Dual Xeon L5530 with Arch (2.6.32 kernel).
I've tried starting the old vmachines on the new hardware but if I enable kvm acceleration in qemu I got a black screen via vnc, and the logs are filled with this message:

handle_exception: unexpected, vectoring info 0x8000000d intr info 0x80000b0d

I've tried creating new virtual machines directly on the new hardware but with the same result.
I've tried any combination of virtualization options in the bios, tested any bios revision for my motherboard (Asus Z8DNA-D6), checked the ram on another system... all in vain.

If I've to provide more info please let me know.
Thanks for your help.