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Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
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From: Yasunori Goto
Subject:
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
Date: Sunday, December 9, 2007 - 6:55 pm
> Yasunori Goto wrote:
quoted text
> >> 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; > >> > > : > >> > > ------- > >> > >> 16 MiB of course. > > > > 16 MiB is not page size. It is "section size". > > IIRC, powerpc's page size must be 4K (or 64K). > > If page size is 4k, vmemmap_alloc_block will call the order 12 page. > > > By default PS3 uses 4K virtual pages, and 16M linear pages. > > > > Is it really correct value for vmemmap population? > > > It seems vmemmap needs linear pages, so I think it is ok.
Oh, I see. Sorry for noise. Bye. -- Yasunori Goto --
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Messages in current thread:
PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Sun Dec 2, 8:59 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Milton Miller
, (Mon Dec 3, 8:53 am)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geert Uytterhoeven
, (Tue Dec 4, 1:30 am)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Tue Dec 4, 9:55 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Tue Dec 4, 9:56 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geert Uytterhoeven
, (Wed Dec 5, 2:52 am)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Andrew Morton
, (Wed Dec 5, 4:11 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Wed Dec 5, 4:45 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Wed Dec 5, 10:44 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Yasunori Goto
, (Wed Dec 5, 11:09 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geert Uytterhoeven
, (Thu Dec 6, 12:41 am)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geert Uytterhoeven
, (Thu Dec 6, 2:55 am)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geert Uytterhoeven
, (Thu Dec 6, 2:55 am)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Yasunori Goto
, (Thu Dec 6, 3:48 am)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Thu Dec 6, 10:55 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Fri Dec 7, 7:47 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Geoff Levand
, (Fri Dec 7, 8:26 pm)
sparsemem: Make SPARSEMEM_VMEMMAP selectable
, Geoff Levand
, (Sat Dec 8, 9:22 pm)
Re: PS3: trouble with SPARSEMEM_VMEMMAP and kexec
, Yasunori Goto
, (Sun Dec 9, 6:55 pm)
Re: sparsemem: Make SPARSEMEM_VMEMMAP selectable
, Yasunori Goto
, (Sun Dec 9, 10:50 pm)
Re: oops with 2.6.23.1, marvel, software raid, reiserfs an ...
, Andrew Morton
, (Sun Dec 16, 4:05 am)
Re: oops with 2.6.23.1, marvel, software raid, reiserfs an ...
, Herbert Xu
, (Sun Dec 16, 4:56 am)
Re: oops with 2.6.23.1, marvel, software raid, reiserfs an ...
, Herbert Xu
, (Sun Dec 16, 5:21 am)
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