[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <52F0D39D.4050409@citrix.com>
Date: Tue, 4 Feb 2014 11:48:45 +0000
From: David Vrabel <david.vrabel@...rix.com>
To: Mel Gorman <mgorman@...e.de>
CC: Ingo Molnar <mingo@...hat.com>,
Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
Boris Ostrovsky <boris.ostrovsky@...cle.com>,
Steven Noonan <steven@...inklabs.net>,
Andrew Morton <akpm@...ux-foundation.org>,
George Dunlap <george.dunlap@...citrix.com>,
Dario Faggioli <dario.faggioli@...rix.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
Rik van Riel <riel@...hat.com>,
Elena Ufimtseva <ufimtseva@...il.com>,
Linux Kernel mailing List <linux-kernel@...r.kernel.org>,
Linux-MM <linux-mm@...ck.org>, Linux-X86 <x86@...nel.org>,
xen-devel <xen-devel@...ts.xenproject.org>
Subject: Re: [PATCH] Subject: [PATCH] xen: Properly account for _PAGE_NUMA
during xen pte translations
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@...rix.com>
Thanks.
David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists