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Re: [Xen-devel] [PATCH] mm: don't defer struct page initialization for Xen pv guests

On Fri 16-02-18 15:02:17, Juergen Gross wrote:
> On 16/02/18 14:59, Michal Hocko wrote:
> > [CC Pavel]
> > 
> > On Fri 16-02-18 14:37:26, Juergen Gross wrote:
> >> Commit f7f99100d8d95dbcf09e0216a143211e79418b9f ("mm: stop zeroing
> >> memory during allocation in vmemmap") broke Xen pv domains in some
> >> configurations, as the "Pinned" information in struct page of early
> >> page tables could get lost.
> > 
> > Could you be more specific please?
> In which way? Do you want to see the resulting crash in the commit
> message or some more background information?

ideally both.
Michal Hocko

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