[PATCH 5/6] Have ia64 use add_active_range() and free_area_init_nodes

[Mel Gorman]

On Sun, 14 May 2006, Andrew Morton wrote:

> Mel Gorman <mel at csn.ul.ie> wrote:
>>
>> Size zones and holes in an architecture independent manner for ia64.
>>
>
> This one makes my ia64 die very early in boot.   The trace is pretty useless.
>
> config at http://www.zip.com.au/~akpm/linux/patches/stuff/config-ia64
>

An indirect fix for this has been set out with a patchset with the subject 
"[PATCH 0/2] Fixes for node alignment and flatmem assumptions" . For 
arch-independent-zone-sizing, the issue was that FLATMEM assumes that 
NODE_DATA(0)->node_start_pfn == 0. This is not the case with 
arch-independent-zone-sizing and IA64. With arch-independent-zone-sizing, 
a nodes node_start_pfn will be at the first valid PFN.

> <log snipped>
>
> Note the misaligned pfns.
>

You will still get the message about misaligned PFNs on IA64. This is 
because the lowest zone starts at the lowest available PFN which may not 
be 0 or any other aligned number. It shouldn't make a different - or at 
least I couldn't cause any problems.

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab