On 03/21/2014 06:06 PM, Andrew Morton wrote:
On Wed, 19 Mar 2014 14:38:32 +0000 Mel Gorman<mgorman@xxxxxxx> wrote:
>On Fri, Mar 14, 2014 at 11:15:37PM -0400, Sasha Levin wrote:
> >On 03/12/2014 06:36 AM, Mel Gorman wrote:
> > >Andrew, this should go with the patches
> > >mmnuma-reorganize-change_pmd_range.patch
> > >mmnuma-reorganize-change_pmd_range-fix.patch
> > >move-mmu-notifier-call-from-change_protection-to-change_pmd_range.patch
> > >in mmotm please.
> > >
> > >Thanks.
> > >
> > >---8<---
> > >From: Mel Gorman<mgorman@xxxxxxx>
> > >Subject: [PATCH] mm: numa: Recheck for transhuge pages under lock during protection changes
> > >
> > >Sasha Levin reported the following bug using trinity
> >
> >I'm seeing a different issue with this patch. A NULL ptr deref occurs in the
> >pte_offset_map_lock() macro right before the new recheck code:
> >
>
>This on top?
>
>I tried testing it but got all sorts of carnage that trinity throw up
>in the mix and ordinary testing does not trigger the race. I've no idea
>which of the current mess of trinity-exposed bugs you've encountered and
>got fixed already.
>
Where are we at with this one?
Looking good here, haven't seen any of the issues reported in this thread.
Thanks,
Sasha
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