From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qc0-f179.google.com (mail-qc0-f179.google.com [209.85.216.179]) by kanga.kvack.org (Postfix) with ESMTP id 8DDAB6B00BF for ; Tue, 4 Nov 2014 07:22:30 -0500 (EST) Received: by mail-qc0-f179.google.com with SMTP id o8so10406009qcw.38 for ; Tue, 04 Nov 2014 04:22:30 -0800 (PST) Received: from n23.mail01.mtsvc.net (mailout32.mail01.mtsvc.net. [216.70.64.70]) by mx.google.com with ESMTPS id s4si488365qcq.11.2014.11.04.04.22.28 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Nov 2014 04:22:29 -0800 (PST) Message-ID: <5458C501.3040505@hurleysoftware.com> Date: Tue, 04 Nov 2014 07:22:25 -0500 From: Peter Hurley MIME-Version: 1.0 Subject: Re: [PATCH] mm: alloc_contig_range: demote pages busy message from warn to info References: <2457604.k03RC2Mv4q@avalon> <1415033873-28569-1-git-send-email-mina86@mina86.com> <20141104054307.GA23102@bbox> In-Reply-To: <20141104054307.GA23102@bbox> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: Minchan Kim , Andrew Morton Cc: Michal Nazarewicz , Laurent Pinchart , linux-kernel@vger.kernel.org, linux-mm@kvack.org On 11/04/2014 12:43 AM, Minchan Kim wrote: > Hello, > > On Mon, Nov 03, 2014 at 05:57:53PM +0100, Michal Nazarewicz wrote: >> Having test_pages_isolated failure message as a warning confuses >> users into thinking that it is more serious than it really is. In >> reality, if called via CMA, allocation will be retried so a single >> test_pages_isolated failure does not prevent allocation from >> succeeding. >> >> Demote the warning message to an info message and reformat it such >> that the text a??faileda?? does not appear and instead a less worrying >> a??PFNS busya?? is used. > > What do you expect from this message? Please describe it so that we can > review below message helps your goal. I expect this message to not show up in logs unless there is a real problem. This message is trivially reproducible on a 10GB x86 machine on 3.16.y kernels configured with CONFIG_DMA_CMA. -- 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