Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec

[Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>]

On Thu, 6 Dec 2007, Geert Uytterhoeven wrote:
> On Thu, 6 Dec 2007, Yasunori Goto wrote:
> > > I'll try Milton's suggestion to pre-allocate the memory early.  It seems
> > > that should work as long as nothing else before the hot-plug mem is added
> > > needs a large chunk.
> > 
> > Hello. Geoff-san. Sorry for late response.
> > 
> > Could you tell me the value of the following page_size calculation
> > in vmemmap_populate()? I think this page_size may be too big value. 
> > 
> > ------
> > int __meminit vmemmap_populate(struct page *start_page,
> >                                        unsigned long nr_pages, int node)
> >                            :
> >                            :
> >         unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift;
> >                            :
> > -------
> 
> 24 MiB

Bummer, messing up bits and MiB.

16 MiB of course.

With kind regards,
 
Geert Uytterhoeven
Software Architect

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