From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-la0-f53.google.com (mail-la0-f53.google.com [209.85.215.53]) by kanga.kvack.org (Postfix) with ESMTP id EFC6D6B0032 for ; Fri, 9 Jan 2015 10:56:46 -0500 (EST) Received: by mail-la0-f53.google.com with SMTP id gm9so15564776lab.12 for ; Fri, 09 Jan 2015 07:56:46 -0800 (PST) Received: from mail-we0-x22b.google.com (mail-we0-x22b.google.com. [2a00:1450:400c:c03::22b]) by mx.google.com with ESMTPS id vk1si20277641wjc.12.2015.01.09.07.56.45 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 09 Jan 2015 07:56:45 -0800 (PST) Received: by mail-we0-f171.google.com with SMTP id u56so8677125wes.2 for ; Fri, 09 Jan 2015 07:56:45 -0800 (PST) Date: Fri, 9 Jan 2015 16:56:43 +0100 From: Michal Hocko Subject: Re: Linux 3.19-rc3 Message-ID: <20150109155643.GC7596@dhcp22.suse.cz> References: <54AE7D53.2020305@redhat.com> <20150108150850.GD5658@dhcp22.suse.cz> <54AEB25E.9050205@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54AEB25E.9050205@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: To: Mark Langsdorf Cc: Linus Torvalds , Linux Kernel Mailing List , linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, Joonsoo Kim , Marek Szyprowski On Thu 08-01-15 10:37:50, Mark Langsdorf wrote: > On 01/08/2015 09:08 AM, Michal Hocko wrote: > >[CCing linux-mm and CMA people] > >[Full message here: > >http://article.gmane.org/gmane.linux.ports.arm.kernel/383669] > > >>[ 1054.095277] DMA: 109*64kB (UR) 53*128kB (R) 8*256kB (R) 0*512kB 0*1024kB > >>0*2048kB 1*4096kB (R) 0*8192kB 0*16384kB 1*32768kB (R) 0*65536kB = 52672kB > >>[ 1054.108621] Normal: 191*64kB (MR) 0*128kB 0*256kB 0*512kB 0*1024kB > >>0*2048kB 0*4096kB 0*8192kB 0*16384kB 0*32768kB 0*65536kB = 12224kB > >[...] > >>[ 1054.142545] Free swap = 6598400kB > >>[ 1054.145928] Total swap = 8388544kB > >>[ 1054.149317] 262112 pages RAM > >>[ 1054.152180] 0 pages HighMem/MovableOnly > >>[ 1054.155995] 18446744073709544361 pages reserved > >>[ 1054.160505] 8192 pages cma reserved > > > >Besides underflow in the reserved pages accounting mentioned in other > >email the free lists look strange as well. All free blocks with some memory > >are marked as reserved. I would suspect something CMA related. > > I get the same failure with CMA turned off entirely. I assume that means > CMA is not the culprit. OK. Do you see all the free page blocks completely reserved without CMA as well? -- Michal Hocko SUSE Labs -- 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