Re: mm: BUG in unmap_page_range

[Sasha Levin]

On 09/08/2014 01:18 PM, Mel Gorman wrote:
> A worse possibility is that somehow the lock is getting corrupted but
> that's also a tough sell considering that the locks should be allocated
> from a dedicated cache. I guess I could try breaking that to allocate
> one page per lock so DEBUG_PAGEALLOC triggers but I'm not very
> optimistic.

I did see ptl corruption couple days ago:

	https://lkml.org/lkml/2014/9/4/599

Could this be related?


Thanks,
Sasha
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