On Sat, Jan 05, 2013 at 06:24:47AM -0600, Simon Jeons wrote:
> On Fri, 2013-01-04 at 17:32 -0800, Michel Lespinasse wrote:
> > On Fri, Jan 4, 2013 at 6:08 AM, Mel Gorman wrote:
> > > Despite the reason for these commits, NUMA balancing is not the direct
> > > source of the problem. split_huge_page
On Fri, Jan 04, 2013 at 05:32:17PM -0800, Michel Lespinasse wrote:
> On Fri, Jan 4, 2013 at 6:08 AM, Mel Gorman wrote:
> > Despite the reason for these commits, NUMA balancing is not the direct
> > source of the problem. split_huge_page() expected the anon_vma lock to be
> > exclusive to serialise
On Sat, Jan 05, 2013 at 01:51:09PM +0800, Zhouping Liu wrote:
> On 01/04/2013 10:08 PM, Mel Gorman wrote:
> >Zhouping, please test this patch.
>
> Tested it, the issue is gone with following patch.
>
> Tested-by: Zhouping Liu
>
Super. Thanks very much for reporting and testing this quickly.
-
On Fri, Jan 04, 2013 at 01:28:09PM -0800, Hugh Dickins wrote:
> I've added Alexander, Hillf and Alex to the Cc.
>
> On Fri, 4 Jan 2013, Mel Gorman wrote:
> > Zhouping, please test this patch.
> >
> > Andrea and Hugh, any comments on whether this could be improved?
>
> Your patch itself looks jus
On Fri, 2013-01-04 at 17:32 -0800, Michel Lespinasse wrote:
> On Fri, Jan 4, 2013 at 6:08 AM, Mel Gorman wrote:
> > Despite the reason for these commits, NUMA balancing is not the direct
> > source of the problem. split_huge_page() expected the anon_vma lock to be
> > exclusive to serialise the wh
On Fri, 2013-01-04 at 14:08 +, Mel Gorman wrote:
> Zhouping, please test this patch.
>
> Andrea and Hugh, any comments on whether this could be improved?
>
> ---8<---
> mm: thp: Acquire the anon_vma rwsem for lock during split
>
> Zhouping Liu reported the following against 3.8-rc1 when runn
On 01/04/2013 10:08 PM, Mel Gorman wrote:
Zhouping, please test this patch.
Tested it, the issue is gone with following patch.
Tested-by: Zhouping Liu
Thanks,
Zhouping
Andrea and Hugh, any comments on whether this could be improved?
---8<---
mm: thp: Acquire the anon_vma rwsem for lock d
On Fri, Jan 4, 2013 at 6:08 AM, Mel Gorman wrote:
> Despite the reason for these commits, NUMA balancing is not the direct
> source of the problem. split_huge_page() expected the anon_vma lock to be
> exclusive to serialise the whole split operation. Ordinarily it is expected
> that the anon_vma l
I've added Alexander, Hillf and Alex to the Cc.
On Fri, 4 Jan 2013, Mel Gorman wrote:
> Zhouping, please test this patch.
>
> Andrea and Hugh, any comments on whether this could be improved?
Your patch itself looks just right to me, no improvement required;
and it's easy to understand how the bu
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