From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200601180127.k0I1R8g18386@unix-os.sc.intel.com> From: "Chen, Kenneth W" Subject: RE: [PATCH/RFC] Shared page tables Date: Tue, 17 Jan 2006 17:27:09 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In-Reply-To: <20060117235302.GA22451@lnx-holt.americas.sgi.com> Sender: owner-linux-mm@kvack.org Return-Path: To: 'Robin Holt' , Dave McCracken Cc: Hugh Dickins , Andrew Morton , Linux Kernel , Linux Memory Management List-ID: 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org