From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <41FE79EF.8040204@sgi.com> Date: Mon, 31 Jan 2005 12:33:19 -0600 From: Ray Bryant MIME-Version: 1.0 Subject: Re: migration cache, updated References: <20041123121447.GE4524@logos.cnet> <20041124.192156.73388074.taka@valinux.co.jp> <20041201202101.GB5459@dmt.cyclades> <20041208.222307.64517559.taka@valinux.co.jp> <20050117095955.GC18785@logos.cnet> In-Reply-To: <20050117095955.GC18785@logos.cnet> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Marcelo Tosatti Cc: Hirokazu Takahashi , linux-mm@kvack.org, iwamoto@valinux.co.jp, haveblue@us.ibm.com, hugh@veritas.com List-ID: Marcello and Hirokazu, I've finally gotten around to working on my user controlled page migration project. (What I'm trying to implement is a way for a suitably authorized user program to request that some or all of the pages or a particular address space be migrated from one NUMA node to another.) The first such thing to try to migrate is anonymous, private pages so that is what I am working on. To keep things simple, the user program is trying to migrate part of its own address space. What I have found out is that this works correctly with the page-migration patch (extracted from the memory hotplug patch, e. g.: http://sr71.net/patches/2.6.10/2.6.10-mm1-mhp-test7/page_migration/ ) but when I apply the migration cache patch on top what happens is that the migration appears to occur, but then as soon as I return from the system call, I get: VM: killing process test Killed (This message comes from ia64_do_page_fault() and appears to because handle_mm_fault() returned FAULT_OOM....) I haven't looked into this further, but was wondering if perhaps one of you would understand why the migrate cache patch would fail in this way? Thanks, -- Best Regards, Ray ----------------------------------------------- Ray Bryant 512-453-9679 (work) 512-507-7807 (cell) raybry@sgi.com raybry@austin.rr.com The box said: "Requires Windows 98 or better", so I installed Linux. ----------------------------------------------- -- 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: aart@kvack.org