Re: [PATCH] [11/18] Fix alignment bug in bootmem allocator

[Yinghai Lu]

On Mon, Mar 17, 2008 at 12:02 AM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> > node_boot_start is not page aligned?
>
>  It is, but it is not necessarily GB aligned and without this
>  change sometimes alloc_bootmem when requesting GB alignment
>  doesn't return GB aligned memory. This was a nasty problem
>  that took some time to track down.

or preferred has some problem?

preferred = PFN_DOWN(ALIGN(preferred, align)) + offset;

YH
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