From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <ak@suse.de>
Subject: Re: xen 3.0.5-rc3 vmx_create_vmcs panic on starting VT
	HVM domain
Date: Wed, 25 Apr 2007 21:30:38 +0200
Message-ID: <200704252130.39010.ak@suse.de>
References: <C25568AF.6563%Keir.Fraser@cl.cam.ac.uk>
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> Not good. 'Invalid opcode' with no BUG or ASSERT message probably means that
> a VMWRITE instruction failed. Do you have your xen-syms file handy? If you
> could send me that privately that would be superb (or an objdump -d of the
> vmx_create_vmcs() function would suffice). What particular type of processor
> were you running on?

It's this line

   __vmwrite(VIRTUAL_APIC_PAGE_ADDR,
              page_to_maddr(vcpu_vlapic(v)->regs_page));

It's an older preproduction VT P4 system. Worked with earlier Xen releases,
but perhaps it's too old now.

-Andi