Re: [Xen-devel] Xen 4.6.1 crash with altp2m enabled by default

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 03.08.16 at 15:24, <Kevin.Mayer@xxxxxxxx> wrote:
> I got around to take a closer look at the crash dump today.
> 
> tl;dr:
> You were right, vmx_vmenter_helper is not called at all in the call stack.
> The real reason behind the [<ffff82d0801fd23a>] 
> vmx_vmenter_helper+0x27e/0x30a 
> should be a failed
> __vmwrite(HOST_CR0, v->arch.hvm_vmx.host_cr0); in static void 
> vmx_fpu_leave(struct vcpu *v).

Ah - that's what you get for not using most recent code, and what
I get for not considering the effect of you being on 4.6.x. In any
event - the call stack is then fine, and you'll want to figure out
which bit(s) of the new CR0 value are in conflict with the rest of the
active VMCS.

Jan


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