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SubjectRe: Recurring warning in page_copy_sane (inside copy_page_to_iter) when running stress tests involving drop_caches
On Wed, May 15, 2019 at 05:04:06PM +0200, Greg Kroah-Hartman wrote:
> > Greg, can you consider 6daef95b8c914866a46247232a048447fff97279 for
> > backporting to stable? Nobody realised it was a bugfix at the time it
> > went in. I suspect there aren't too many of us running HIGHMEM kernels
> > any more.
> >
> Sure, what kernel version(s) should this go to? 4.19 and newer?

Looks like the problem was introduced with commit
a90bcb86ae700c12432446c4aa1819e7b8e172ec so 4.14 and newer, I think.

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