From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx119.postini.com [74.125.245.119]) by kanga.kvack.org (Postfix) with SMTP id 64F0D6B0044 for ; Wed, 5 Dec 2012 12:48:12 -0500 (EST) Received: from /spool/local by e9.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 5 Dec 2012 12:48:10 -0500 Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by d01dlp03.pok.ibm.com (Postfix) with ESMTP id DB1F0C9001C for ; Wed, 5 Dec 2012 12:48:06 -0500 (EST) Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by d01relay02.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id qB5Hm692309370 for ; Wed, 5 Dec 2012 12:48:06 -0500 Received: from d01av01.pok.ibm.com (loopback [127.0.0.1]) by d01av01.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id qB5Hm6ux008358 for ; Wed, 5 Dec 2012 12:48:06 -0500 Message-ID: <50BF88D0.9050209@linux.vnet.ibm.com> Date: Wed, 05 Dec 2012 09:48:00 -0800 From: Dave Hansen MIME-Version: 1.0 Subject: Re: [PATCH] Debugging: Keep track of page owners References: <20121205011242.09C8667F@kernel.stglabs.ibm.com> <50BF61E0.1060307@codeaurora.org> In-Reply-To: <50BF61E0.1060307@codeaurora.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Laura Abbott Cc: akpm@osdl.org, linux-mm@kvack.org On 12/05/2012 07:01 AM, Laura Abbott wrote:\ > Any reason you are using custom stack saving code instead of using the > save_stack_trace API? (include/linux/stacktrace.h) . This is implemented > on all architectures and takes care of special considerations for > architectures such as ARM. This is actually an ancient patch that Andrew's been carrying around and updating periodically. I didn't duck fast enough and got stuck updating it. :) > MIGRATE_CMA pages (with CONFIG_CMA) will always have pagetype != mtype > so CMA pages will always show up here even though they are considered > movable pages. That's probably not what you want here. What do you think the the right way to handle it is? Should we just check explicitly for CMA pages and punt on them? -- 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