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Date: Wed, 28 Mar 2007 14:39:31 +0200
Subject: Re: [Qemu-devel] Patch: generate a DBF when a GPF could not
	be	delivered on x86
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From: Bernhard Kauer <kauer@os.inf.tu-dresden.de>
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To: qemu-devel@nongnu.org

On Wed, Mar 28, 2007 at 10:13:49AM +0200, Sebastian Kaliszewski wrote:
> Bernhard Kauer wrote:
> >Qemu does not generate a double fault (DBF) on x86, if a general protection
> >fault could not be delivered. Instead it hangs in a loop.
> >
> >The patch fix this bug by checking whether we are already in a GPF 
> >exception.
> 
> If you're at it, maybe add triple fault handling (ie exception if DBF 
> handler) -- it should reset CPU.

There are many things missing in the x86 exception handling. For example
the case PF -> PF is also not handled.


    Bernhard Kauer