Re: Big memory, no struct page allocation

William Lee Irwin III wrote:

William Lee Irwin III wrote:
 

quoted

quoted

Try allocating it at boot-time with the bootmem allocator.
     

On Sun, Jun 23, 2002 at 11:31:28PM +0800, David Chow wrote:
 

quoted

Thanks for suggestions, you mean this will allow no struct page or can 
use memory more than 1GB? Please make clear on direction, I would love 
to know. Thanks.
   

On 32-bit machines with 3:1 process address space splits yes.

In this case you're far better off playing games with the highmem
initialization in order to slice the memory out of there and kmap it.


Cheers,
Bill
 

In other words, even I have 2G physical memory, I cannot have benefits 
of using all memory for pagecache, this also means I cannot create any 
cache beyong a 1G size in kernel. That's a pitty for 32-bit systems, 
with himem, how does it work?

David


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