Re: [Xen-ia64-devel] VT-i: general exception

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

On Tue, Apr 11, 2006 at 09:17:40AM +0800, Xu, Anthony wrote:

> >inside vmx_ivt.S:
> >
> >// 0x5400 Entry 24 (size 16 bundles) General Exception (5,32,34,36,38,39)
> >ENTRY(vmx_general_exception)
> >    VMX_DBG_FAULT(24)
> >    VMX_FAULT(24)
> >//    VMX_REFLECT(24)
> >END(vmx_general_exception)
> >
> >IIRC, VMX_FAULT is an infinite loop.  Therefore, in case of general exception
> >raised at the hots IVT, xen locks.
> >
> >Is it a bug or something not finished ?
> It's not a bug, normally general exception will not happen in guest,
> If it does happen, that means something wrong, it was used for
> debugging.

Now xen/ia64 has register dump/stack trace functionality.
So would it be much better to show stack trace than silent loop?

-- 
yamahata

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