Messages in this thread | | | From | "Chen, Kenneth W" <> | Subject | RE: [PATCH/RFC] Shared page tables | Date | Tue, 17 Jan 2006 17:27:09 -0800 |
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Robin Holt wrote on Tuesday, January 17, 2006 3:53 PM > This appears to work on ia64 with the attached patch. Could you > send me any test application you think would be helpful for me > to verify it is operating correctly? I could not get the PTSHARE_PUD > to compile. I put _NO_ effort into it. I found the following line > was invalid and quit trying. > > --- linux-2.6.orig/arch/ia64/Kconfig 2006-01-14 07:16:46.149226872 -0600 > +++ linux-2.6/arch/ia64/Kconfig 2006-01-14 07:25:02.228853432 -0600 > @@ -289,6 +289,38 @@ source "mm/Kconfig" > config ARCH_SELECT_MEMORY_MODEL > def_bool y > > + > +config PTSHARE_HUGEPAGE > + bool > + depends on PTSHARE && PTSHARE_PMD > + default y > +
You need to thread carefully with hugetlb ptshare on ia64. PTE for hugetlb page on ia64 observe full page table levels, not like x86 that sits in the pmd level.
- Ken
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