Re: [discuss] mmap, mbind and write to mmap'ed memory crashes2.6.16-rc1[2] on 2 node X86_64

From: Christoph Lameter
Date: Wed Feb 08 2006 - 11:49:53 EST


On Wed, 8 Feb 2006, Andi Kleen wrote:

> > The fix could result in a zonelist with no zones. So we can answer one
> > question in __alloc_pages().
>
> I don't think it can happen - at least one zone <= policy-zone has to
> have memory otherwise the machine wouldn't work at all.

One could bind to a nodeset that contains a single node. If that node has
no memory in the policy zone then the zonelist generated by
bind_zonelist will be empty.

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