From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f71.google.com (mail-wm0-f71.google.com [74.125.82.71]) by kanga.kvack.org (Postfix) with ESMTP id 7A45F6B0069 for ; Wed, 12 Oct 2016 04:43:44 -0400 (EDT) Received: by mail-wm0-f71.google.com with SMTP id c78so5468260wme.1 for ; Wed, 12 Oct 2016 01:43:44 -0700 (PDT) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id 125si1638688wmg.78.2016.10.12.01.43.43 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 12 Oct 2016 01:43:43 -0700 (PDT) Date: Wed, 12 Oct 2016 10:43:42 +0200 From: Michal Hocko Subject: Re: OOM in v4.8 Message-ID: <20161012084342.GF17128@dhcp22.suse.cz> References: <20161012065423.GA16092@aaronlu.sh.intel.com> <20161012074411.GA9523@dhcp22.suse.cz> <20161012080022.GA17128@dhcp22.suse.cz> <24ea68df-8b6c-5319-a8ef-9c4f237cfc2a@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <24ea68df-8b6c-5319-a8ef-9c4f237cfc2a@intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Aaron Lu Cc: Linux MM , lkp@01.org, Huang Ying , Vlastimil Babka On Wed 12-10-16 16:24:47, Aaron Lu wrote: > On 10/12/2016 04:00 PM, Michal Hocko wrote: [...] > > which is an atomic high order request that failed which is not all that > > unexpected when the system is low on memory. The allocation failure > > report is hard to read because of unexpected end-of-lines but I suspect > > Sorry about that, I'll try to find out why dmesg is saved so ugly on > that test box. Not your fault. This seems to be 4bcc595ccd80 ("printk: reinstate KERN_CONT for printing continuation lines") > > that again we are not able to allocate because of the CMA standing in > > the way. I wouldn't call the above failure critical though. > > I'll test that commit and v4.8 again with cma=0 added to cmdline. Thanks! -- 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