Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964894AbWARDdM (ORCPT ); Tue, 17 Jan 2006 22:33:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964896AbWARDdL (ORCPT ); Tue, 17 Jan 2006 22:33:11 -0500 Received: from omx1-ext.sgi.com ([192.48.179.11]:32911 "EHLO omx1.americas.sgi.com") by vger.kernel.org with ESMTP id S964894AbWARDdK (ORCPT ); Tue, 17 Jan 2006 22:33:10 -0500 Date: Tue, 17 Jan 2006 21:32:54 -0600 From: Robin Holt To: "Chen, Kenneth W" Cc: "'Robin Holt'" , Dave McCracken , Hugh Dickins , Andrew Morton , Linux Kernel , Linux Memory Management Subject: Re: [PATCH/RFC] Shared page tables Message-ID: <20060118033254.GA28446@lnx-holt.americas.sgi.com> References: <20060117235302.GA22451@lnx-holt.americas.sgi.com> <200601180127.k0I1R8g18386@unix-os.sc.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200601180127.k0I1R8g18386@unix-os.sc.intel.com> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1262 Lines: 33 On Tue, Jan 17, 2006 at 05:27:09PM -0800, Chen, Kenneth W wrote: > 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. I did no testing with hugetlb pages. Robin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/