Re: [Qemu-devel] Bug report for kvm-kmod-3.3!

[Jan Kiszka]

On 2012-03-23 09:19, Katrina Austin wrote:
> Hi all,
> 
>    I've built a guest image. It works well on KVM with a AMD X240 processor
> but failed with a intel E5620 processor. I am using kvm-kmod-3.3 and
> qemu-kvm-0.14.0. Here comes the report:
>                 kvm_emulate_insn: 0: 11a6d0: ff (prot32) failed
>                 kvm_userspace_exit: reason KVM_EXIT_INTERNAL_ERROR (17)
>                 kvm_inj_exception:    #UD(0x0)
>                 kvm_entry: vcpu 0
>                 kvm_exit: reason EPT_MISCONFIG rip 0x11a6d0 info 0 0
>   It bothers me so much and I would be much appreciated if someone can
> provide help.

Could it be that your guest image uses instructions that are only
available on AMD processors? Or is this a regression from previous KVM
versions. If yes, which one worked?

Further questions in that case:
 - Could you retest with KVM over a 3.3 kernel, i.e. without kvm-kmod?
   Does that also faile?
 - What is your host kernel version?

Jan

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