Re: 2.6.25-rc1 xen pvops regression

Jeremy Fitzhardinge
2008-02-21T21:40:27Z

H. Peter Anvin wrote:
>> Still curious about why a pagetable page is ending up in that range
>> though. Seems like it shouldn't be possible, since we shouldn't be
>> allowed to allocate from those pages, at least until the DMI probe
>> has happened... Unless the early allocator is only excluded from
>> e820 reserved pages, which would cause a problem on systems which
>> don't reserve the DMI space... HPA?
>>
>
> I thought the problem was a Xen-provided pagetable from before Linux
> started?

Hm, I don't think so. The domain-builder pagetable is put after the
kernel, so it shouldn't be under 1M.

J