Turning on Sparsemem

[C Michael Sundius <Michael.sundius@sciatl.com>]

Hi Andy and Dave,

I turned on sparsemem as you described before. I am crashing in
the mem_init() function when I try a call to pfn_to_page().

I've noticed that that macro uses the sparsemem macro 
__pfn_to_section(pfn) and
that intern calls __nr_to_section(nr). That finally looks at the 
mem_section[] variable.
well.. this returns NULL since it seems as though my mem_section[] array 
looks
to be not initialized correctly.

QUESTION: where does this array get initialized. I've looked through the 
code and
can't seem to see how that is initialized.

recall I'm using mips32 processor, but I've looked in all the processors.
it seems as though sparse_init() and memory present() both use 
__nr_to_section()
and thus would require mem_section[] to be set up already.

thanks for your help
Mike



     - - - - -                              Cisco                            - - - - -         
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