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SubjectRe: [PATCH 1/10] lguest: Don't rely on last-linked fallthru when no paravirt handler
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On Fri, 2007-02-09 at 10:31 +0100, Andi Kleen wrote:
> On Friday 09 February 2007 10:14, Rusty Russell wrote:
>
> > +unhandled_paravirt:
> > + /* Nothing wanted us: try to die with dignity (impossible trap). */
> > + movl $0x1F, %edx
> > + pushl $0
> > + jmp early_fault
>
> Please print a real message with early_printk

If we make it thought early_fault, this will do just that.

Given this is a "never happens" situation, however... if you're actually
under Xen or lguest, you won't make it that far (lguest, at least, will
kill you on the cr2 load in early_fault, but it doesn't matter because
we won't get anywhere with early_printk anyway).

Actually, if we did BUG() here at least lguest would print something...
I wonder what Xen would do...

Rusty.


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