Re: [PATCHv4 16/39] thp, mm: locking tail page is a bug

From: Kirill A. Shutemov
Date: Wed May 22 2013 - 10:11:00 EST

Dave Hansen wrote:
> On 05/11/2013 06:23 PM, Kirill A. Shutemov wrote:
> > From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
> >
> > Locking head page means locking entire compound page.
> > If we try to lock tail page, something went wrong.
> Have you actually triggered this in your development?

Yes, on early prototypes.

Kirill A. Shutemov
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