Messages in this thread | | | Date | Tue, 4 Feb 2014 09:38:01 -0500 | From | Konrad Rzeszutek Wilk <> | Subject | Re: [PATCH] Subject: [PATCH] xen: Properly account for _PAGE_NUMA during xen pte translations |
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On Tue, Feb 04, 2014 at 11:48:45AM +0000, 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 <david.vrabel@citrix.com>
Thank you for fixing it!
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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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