From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756717AbcK3HTP (ORCPT ); Wed, 30 Nov 2016 02:19:15 -0500 Received: from vps01.wiesinger.com ([46.36.37.179]:34810 "EHLO vps01.wiesinger.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752526AbcK3HTG (ORCPT ); Wed, 30 Nov 2016 02:19:06 -0500 X-Greylist: delayed 498 seconds by postgrey-1.27 at vger.kernel.org; Wed, 30 Nov 2016 02:19:06 EST DKIM-Filter: OpenDKIM Filter v2.10.3 wiesinger.com uAU7AFmF021130 Cc: "Linus Torvalds torvalds"@linux-foundation.org From: Gerhard Wiesinger To: linux-kernel@vger.kernel.org Subject: Still OOM problems with 4.9er kernels Message-ID: Date: Wed, 30 Nov 2016 08:10:15 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.5.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, I'm having out of memory situations with my "low memory" VMs in KVM under Fedora (Kernel 4.7, 4.8 and also before). They started to get more and more sensitive to OOM. I recently found the following info: https://marius.bloggt-in-braunschweig.de/2016/11/17/linuxkernel-4-74-8-und-der-oom-killer/ https://www.spinics.net/lists/linux-mm/msg113661.html Therefore I tried the latest Fedora kernels: 4.9.0-0.rc6.git2.1.fc26.x86_64 But OOM situation is still very easy to reproduce: 1.) VM with 128-384MB under Fedora 25 2.) Having some processes run without any load (e.g. Apache) 3.) run an update with: dnf clean all; dnf update 4.) dnf python process get's killed Please make the VM system working again in Kernel 4.9 and to use swap again correctly. Thnx. Ciao, Gerhard