Re: Dom0 PAE panic when starting xend

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

On Tuesday 10 March 2009 18:14:58 Manuel Bouyer wrote:
> On Tue, Mar 10, 2009 at 05:51:28PM +0100, Christoph Egger wrote:
> > > I just tried with casting to paddr_t. Unfortunately, this doesn't fix
> > > the mmu_update failure. xenevtmmap() runs twice before the
> > > panic happens.
> >
> > xen_start_info.store_mfn has the value 0x10088a.
> >
> > That's not large enough that casting to paddr_t has an effect.
>
> Yes, even after a << PAGE_SHIFT
>
> x86_round_page(), x86_trunc_page() and x86_ptob() also need to be changed
> from (unsigned long) to paddr_t. The other x86_* macros in the same block
> are safe (only used on virtual addresses).

Right. You can also have the overflow problem with a 32bit PAE DomU with 4GB 
RAM. xennet(4) uses x86_btop(), for example.
Therefore, I think, this fix should be pulled to netbsd-5.

Christoph