[Xen-devel] Re: A random bug introduced in C/S 10918

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 15/8/06 1:34 pm, "Li, Xin B" <xin.b.li@xxxxxxxxx> wrote:

> +    local_flush_tlb_pge();
> +
>      mfn = gmfn_to_mfn(d, E820_MAP_PAGE >> PAGE_SHIFT);
>      if ( mfn == INVALID_MFN )
>      {
> 
> I don't think this is a clean fix, but how can this happen? Seems p2m
> table TLB entries sometimes are not flushed when loading a new cr3
> value.  Can you help to take a look?

Hi Xin,

Try removing _PAGE_GLOBAL from line 117 of arch/x86/x86_64/mm.c. Should be a
bit more correct. ;-)

If that works let me know and I'll apply the patch for you.

 -- Keir



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