On Tue, Feb 04, 2014 at 11:48:45AM +, David Vrabel wrote:
> On 04/02/14 11:44, Mel Gorman wrote:
> > Steven Noonan forwarded a users report where they had a problem starting
> > vsftpd on a Xen paravirtualized guest, with this in dmesg:
> >
> [...]
> >
> > The issue could not be reproduced under an HVM instance with the same
> > kernel,
> > so it appears to be exclusive to paravirtual Xen guests. He bisected the
> > problem to commit 1667918b (mm: numa: clear numa hinting information on
> > mprotect) that was also included in 3.12-stable.
> >
> > The problem was related to how xen translates ptes because it was not
> > accounting for the _PAGE_NUMA bit. This patch splits pte_present to add
> > a pteval_present helper for use by xen so both bare metal and xen use
> > the same code when checking if a PTE is present.
>
> Reviewed-by: David Vrabel
Thank you for fixing it!
Acked-by: Konrad Rzeszutek Wilk
I can ingest it through the Xen tree for rc2. Or let Linus handle it
if he prefers it.
>
> Thanks.
>
> David
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