From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e35.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id l91FYcW7024448 for ; Mon, 1 Oct 2007 11:34:38 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v8.5) with ESMTP id l91FYc9h477826 for ; Mon, 1 Oct 2007 09:34:38 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l91FYcNP007531 for ; Mon, 1 Oct 2007 09:34:38 -0600 Subject: Hotplug memory remove From: Badari Pulavarty Content-Type: text/plain Date: Mon, 01 Oct 2007 08:37:43 -0700 Message-Id: <1191253063.29581.7.camel@dyn9047017100.beaverton.ibm.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: kamezawa.hiroyu@jp.fujitsu.com Cc: linux-mm List-ID: Hi, I am trying to test hotplug memory remove support on ppc64. I have few questions (sorry if they are stupid), hoping you could help me. 1) Other than remove_memory(), I don't see any other arch-specific code that needs to be provided. Even remove_memory() looks pretty arch independent. Isn't it ? 2) I copied remove_memory() from IA64 to PPC64. When I am testing hotplug-remove (echo offline > state), I am not able to remove any memory at all. I get different type of failures like .. memory offlining 6e000 to 6f000 failed - OR - Offlined Pages 0 I am wondering, how did you test it on IA64 ? Am I missing something ? How can I find which "sections" of the memory are free to remove ? I am using /proc/page_owner to figure it out for now. Thanks, Badari -- 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