Re: Race in new page migration code?

Christoph Lameter
2006-01-16T16:10:42Z

On Mon, 16 Jan 2006, Hugh Dickins wrote:

> > It also applies to the policy compliance check.
>
> Good point, I missed that: you've inadventently changed the behaviour
> of sys_mbind when it encounters a zero page from a disallowed node.
> Another reason to remove your PageReserved test.

The zero page always come from node zero on IA64. I think this is more the
inadvertent fixing of a bug. The policy compliance check currently fails
if an address range contains a zero page but node zero is not contained in
the nodelist.